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1What: /sys/bus/iio/devices/iio:deviceX
2KernelVersion: 2.6.35
3Contact: linux-iio@vger.kernel.org
4Description:
5 Hardware chip or device accessed by one communication port.
6 Corresponds to a grouping of sensor channels. X is the IIO
7 index of the device.
8
9What: /sys/bus/iio/devices/triggerX
10KernelVersion: 2.6.35
11Contact: linux-iio@vger.kernel.org
12Description:
13 An event driven driver of data capture to an in kernel buffer.
14 May be provided by a device driver that also has an IIO device
15 based on hardware generated events (e.g. data ready) or
16 provided by a separate driver for other hardware (e.g.
17 periodic timer, GPIO or high resolution timer).
18
19 Contains trigger type specific elements. These do not
20 generalize well and hence are not documented in this file.
21 X is the IIO index of the trigger.
22
23What: /sys/bus/iio/devices/iio:deviceX/buffer
24KernelVersion: 2.6.35
25Contact: linux-iio@vger.kernel.org
26Description:
27 Directory of attributes relating to the buffer for the device.
28
29What: /sys/bus/iio/devices/iio:deviceX/name
30KernelVersion: 2.6.35
31Contact: linux-iio@vger.kernel.org
32Description:
33 Description of the physical chip / device for device X.
34 Typically a part number.
35
36What: /sys/bus/iio/devices/iio:deviceX/label
37KernelVersion: 5.8
38Contact: linux-iio@vger.kernel.org
39Description:
40 Optional symbolic label for a device.
41 This is useful for userspace to be able to better identify an
42 individual device.
43
44 The contents of the label are free-form, but there are some
45 standardized uses:
46
47 For proximity sensors which give the proximity (of a person) to
48 a certain wlan or wwan antenna the following standardized labels
49 are used:
50
51 * "proximity-wifi"
52 * "proximity-lte"
53 * "proximity-wifi-lte"
54 * "proximity-wifi-left"
55 * "proximity-wifi-right"
56
57 These are used to indicate to userspace that these proximity
58 sensors may be used to tune transmit power to ensure that
59 Specific Absorption Rate (SAR) limits are honored.
60 The "-left" and "-right" labels are for devices with multiple
61 antennas.
62
63 In some laptops/tablets the standardized proximity sensor labels
64 instead indicate proximity to a specific part of the device:
65
66 * "proximity-palmrest" indicates proximity to the keyboard's palmrest
67 * "proximity-palmrest-left" indicates proximity to the left part of the palmrest
68 * "proximity-palmrest-right" indicates proximity to the right part of the palmrest
69 * "proximity-lap" indicates the device is being used on someone's lap
70
71 Note "proximity-lap" is special in that its value may be
72 calculated by firmware from other sensor readings, rather then
73 being a raw sensor reading.
74
75 For accelerometers used in 2-in-1s with 360° (yoga-style) hinges,
76 which have an accelerometer in both their base and their display,
77 the following standardized labels are used:
78
79 * "accel-base"
80 * "accel-display"
81
82 For devices where an accelerometer is housed in the swivel camera subassembly
83 (for AR application), the following standardized label is used:
84
85 * "accel-camera"
86
87What: /sys/bus/iio/devices/iio:deviceX/current_timestamp_clock
88KernelVersion: 4.5
89Contact: linux-iio@vger.kernel.org
90Description:
91 String identifying current posix clock used to timestamp
92 buffered samples and events for device X.
93
94What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency
95What: /sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency
96What: /sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency
97What: /sys/bus/iio/devices/triggerX/sampling_frequency
98KernelVersion: 2.6.35
99Contact: linux-iio@vger.kernel.org
100Description:
101 Some devices have internal clocks. This parameter sets the
102 resulting sampling frequency. In many devices this
103 parameter has an effect on input filters etc. rather than
104 simply controlling when the input is sampled. As this
105 affects data ready triggers, hardware buffers and the sysfs
106 direct access interfaces, it may be found in any of the
107 relevant directories. If it affects all of the above
108 then it is to be found in the base device directory.
109
110 The stm32-timer-trigger has the additional characteristic that
111 a sampling_frequency of 0 is defined to stop sampling.
112
113What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available
114What: /sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency_available
115What: /sys/bus/iio/devices/iio:deviceX/in_proximity_sampling_frequency_available
116What: /sys/.../iio:deviceX/buffer/sampling_frequency_available
117What: /sys/bus/iio/devices/triggerX/sampling_frequency_available
118KernelVersion: 2.6.35
119Contact: linux-iio@vger.kernel.org
120Description:
121 When the internal sampling clock can only take a specific set of
122 frequencies, we can specify the available values with:
123
124 - a small discrete set of values like "0 2 4 6 8"
125 - a range with minimum, step and maximum frequencies like
126 "[min step max]"
127
128What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio
129KernelVersion: 2.6.38
130Contact: linux-iio@vger.kernel.org
131Description:
132 Hardware dependent ADC oversampling. Controls the sampling ratio
133 of the digital filter if available.
134
135What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available
136KernelVersion: 2.6.38
137Contact: linux-iio@vger.kernel.org
138Description:
139 Hardware dependent values supported by the oversampling filter.
140
141What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_raw
142What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw
143What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_raw
144What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_raw
145KernelVersion: 2.6.35
146Contact: linux-iio@vger.kernel.org
147Description:
148 Raw (unscaled no bias removal etc.) voltage measurement from
149 channel Y. In special cases where the channel does not
150 correspond to externally available input one of the named
151 versions may be used. The number must always be specified and
152 unique to allow association with event codes. Units after
153 application of scale and offset are millivolts.
154
155 Channels with 'i' and 'q' modifiers always exist in pairs and both
156 channels refer to the same signal. The 'i' channel contains the in-phase
157 component of the signal while the 'q' channel contains the quadrature
158 component.
159
160What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw
161KernelVersion: 2.6.35
162Contact: linux-iio@vger.kernel.org
163Description:
164 Raw (unscaled) differential voltage measurement equivalent to
165 channel Y - channel Z where these channel numbers apply to the
166 physically equivalent inputs when non differential readings are
167 separately available. In differential only parts, then all that
168 is required is a consistent labeling. Units after application
169 of scale and offset are millivolts.
170
171What: /sys/bus/iio/devices/iio:deviceX/in_currentY_raw
172What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_raw
173KernelVersion: 3.17
174Contact: linux-iio@vger.kernel.org
175Description:
176 Raw (unscaled no bias removal etc.) current measurement from
177 channel Y. In special cases where the channel does not
178 correspond to externally available input one of the named
179 versions may be used. The number must always be specified and
180 unique to allow association with event codes. Units after
181 application of scale and offset are milliamps.
182
183What: /sys/bus/iio/devices/iio:deviceX/in_powerY_raw
184KernelVersion: 4.5
185Contact: linux-iio@vger.kernel.org
186Description:
187 Raw (unscaled no bias removal etc.) power measurement from
188 channel Y. The number must always be specified and
189 unique to allow association with event codes. Units after
190 application of scale and offset are milliwatts.
191
192What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
193KernelVersion: 3.2
194Contact: linux-iio@vger.kernel.org
195Description:
196 Raw capacitance measurement from channel Y. Units after
197 application of scale and offset are nanofarads.
198
199What: /sys/.../iio:deviceX/in_capacitanceY-capacitanceZ_raw
200KernelVersion: 3.2
201Contact: linux-iio@vger.kernel.org
202Description:
203 Raw differential capacitance measurement equivalent to
204 channel Y - channel Z where these channel numbers apply to the
205 physically equivalent inputs when non differential readings are
206 separately available. In differential only parts, then all that
207 is required is a consistent labeling. Units after application
208 of scale and offset are nanofarads.
209
210What: /sys/.../iio:deviceX/in_capacitanceY-capacitanceZ_zeropoint
211KernelVersion: 6.1
212Contact: linux-iio@vger.kernel.org
213Description:
214 For differential channels, this an offset that is applied
215 equally to both inputs. As the reading is of the difference
216 between the two inputs, this should not be applied to the _raw
217 reading by userspace (unlike _offset) and unlike calibbias
218 it does not affect the differential value measured because
219 the effect of _zeropoint cancels out across the two inputs
220 that make up the differential pair. It's purpose is to bring
221 the individual signals, before the differential is measured,
222 within the measurement range of the device. The naming is
223 chosen because if the separate inputs that make the
224 differential pair are drawn on a graph in their
225 _raw units, this is the value that the zero point on the
226 measurement axis represents. It is expressed with the
227 same scaling as _raw.
228
229What: /sys/bus/iio/devices/iio:deviceX/in_temp_raw
230What: /sys/bus/iio/devices/iio:deviceX/in_tempX_raw
231What: /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
232What: /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw
233What: /sys/bus/iio/devices/iio:deviceX/in_temp_ambient_raw
234What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_raw
235KernelVersion: 2.6.35
236Contact: linux-iio@vger.kernel.org
237Description:
238 Raw (unscaled no bias removal etc.) temperature measurement.
239 If an axis is specified it generally means that the temperature
240 sensor is associated with one part of a compound device (e.g.
241 a gyroscope axis). The ambient and object modifiers distinguish
242 between ambient (reference) and distant temperature for contact-
243 less measurements. Units after application of scale and offset
244 are milli degrees Celsius.
245
246What: /sys/bus/iio/devices/iio:deviceX/in_tempX_input
247KernelVersion: 2.6.38
248Contact: linux-iio@vger.kernel.org
249Description:
250 Scaled temperature measurement in milli degrees Celsius.
251
252What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw
253What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw
254What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw
255KernelVersion: 2.6.35
256Contact: linux-iio@vger.kernel.org
257Description:
258 Acceleration in direction x, y or z (may be arbitrarily assigned
259 but should match other such assignments on device).
260 Has all of the equivalent parameters as per voltageY. Units
261 after application of scale and offset are m/s^2.
262
263What: /sys/bus/iio/devices/iio:deviceX/in_accel_linear_x_raw
264What: /sys/bus/iio/devices/iio:deviceX/in_accel_linear_y_raw
265What: /sys/bus/iio/devices/iio:deviceX/in_accel_linear_z_raw
266KernelVersion: 6.1
267Contact: linux-iio@vger.kernel.org
268Description:
269 As per in_accel_X_raw attributes, but minus the
270 acceleration due to gravity.
271
272What: /sys/bus/iio/devices/iio:deviceX/in_gravity_x_raw
273What: /sys/bus/iio/devices/iio:deviceX/in_gravity_y_raw
274What: /sys/bus/iio/devices/iio:deviceX/in_gravity_z_raw
275KernelVersion: 4.11
276Contact: linux-iio@vger.kernel.org
277Description:
278 Gravity in direction x, y or z (may be arbitrarily assigned
279 but should match other such assignments on device).
280 Units after application of scale and offset are m/s^2.
281
282What: /sys/bus/iio/devices/iio:deviceX/in_angl_raw
283What: /sys/bus/iio/devices/iio:deviceX/in_anglY_raw
284KernelVersion: 4.17
285Contact: linux-iio@vger.kernel.org
286Description:
287 Angle of rotation. Units after application of scale and offset
288 are radians.
289
290What: /sys/bus/iio/devices/iio:deviceX/in_positionrelative_x_raw
291What: /sys/bus/iio/devices/iio:deviceX/in_positionrelative_y_raw
292KernelVersion: 4.19
293Contact: linux-iio@vger.kernel.org
294Description:
295 Relative position in direction x or y on a pad (may be
296 arbitrarily assigned but should match other such assignments on
297 device).
298 Units after application of scale and offset are milli percents
299 from the pad's size in both directions. Should be calibrated by
300 the consumer.
301
302What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
303What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
304What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
305KernelVersion: 2.6.35
306Contact: linux-iio@vger.kernel.org
307Description:
308 Angular velocity about axis x, y or z (may be arbitrarily
309 assigned). Has all the equivalent parameters as per voltageY.
310 Units after application of scale and offset are radians per
311 second.
312
313What: /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw
314What: /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw
315What: /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw
316KernelVersion: 2.6.35
317Contact: linux-iio@vger.kernel.org
318Description:
319 Inclination raw reading about axis x, y or z (may be
320 arbitrarily assigned). Data converted by application of offset
321 and scale to degrees.
322
323What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw
324What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw
325What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw
326KernelVersion: 2.6.35
327Contact: linux-iio@vger.kernel.org
328Description:
329 Magnetic field along axis x, y or z (may be arbitrarily
330 assigned). Data converted by application of offset
331 then scale to Gauss.
332
333What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
334What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
335What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
336KernelVersion: 2.6.36
337Contact: linux-iio@vger.kernel.org
338Description:
339 Highest value since some reset condition. These
340 attributes allow access to this and are otherwise
341 the direct equivalent of the <type>Y[_name]_raw attributes.
342
343What: /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw
344KernelVersion: 2.6.36
345Contact: linux-iio@vger.kernel.org
346Description:
347 A computed peak value based on the sum squared magnitude of
348 the underlying value in the specified directions.
349
350What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_raw
351What: /sys/bus/iio/devices/iio:deviceX/in_pressure_raw
352KernelVersion: 3.8
353Contact: linux-iio@vger.kernel.org
354Description:
355 Raw pressure measurement from channel Y. Units after
356 application of scale and offset are kilopascal.
357
358What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_input
359What: /sys/bus/iio/devices/iio:deviceX/in_pressure_input
360KernelVersion: 3.8
361Contact: linux-iio@vger.kernel.org
362Description:
363 Scaled pressure measurement from channel Y, in kilopascal.
364
365What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw
366KernelVersion: 3.14
367Contact: linux-iio@vger.kernel.org
368Description:
369 Raw humidity measurement of air. Units after application of
370 scale and offset are milli percent.
371
372What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input
373KernelVersion: 3.14
374Contact: linux-iio@vger.kernel.org
375Description:
376 Scaled humidity measurement in milli percent.
377
378What: /sys/bus/iio/devices/iio:deviceX/in_X_mean_raw
379KernelVersion: 3.5
380Contact: linux-iio@vger.kernel.org
381Description:
382 Averaged raw measurement from channel X. The number of values
383 used for averaging is device specific. The converting rules for
384 normal raw values also applies to the averaged raw values.
385
386What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset
387What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
388What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
389What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
390What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
391What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset
392What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_offset
393What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_offset
394What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_offset
395What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_offset
396What: /sys/bus/iio/devices/iio:deviceX/in_currentY_offset
397What: /sys/bus/iio/devices/iio:deviceX/in_current_offset
398What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_offset
399What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_offset
400What: /sys/bus/iio/devices/iio:deviceX/in_current_q_offset
401What: /sys/bus/iio/devices/iio:deviceX/in_current_i_offset
402What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset
403What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset
404What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
405What: /sys/bus/iio/devices/iio:deviceX/in_pressure_offset
406What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset
407What: /sys/bus/iio/devices/iio:deviceX/in_magn_offset
408What: /sys/bus/iio/devices/iio:deviceX/in_rot_offset
409What: /sys/bus/iio/devices/iio:deviceX/in_angl_offset
410What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceX_offset
411KernelVersion: 2.6.35
412Contact: linux-iio@vger.kernel.org
413Description:
414 If known for a device, offset to be added to <type>[Y]_raw prior
415 to scaling by <type>[Y]_scale in order to obtain value in the
416 <type> units as specified in <type>[Y]_raw documentation.
417 Not present if the offset is always 0 or unknown. If Y or
418 axis <x|y|z> is not present, then the offset applies to all
419 in channels of <type>.
420 May be writable if a variable offset can be applied on the
421 device. Note that this is different to calibbias which
422 is for devices (or drivers) that apply offsets to compensate
423 for variation between different instances of the part, typically
424 adjusted by using some hardware supported calibration procedure.
425 Calibbias is applied internally, offset is applied in userspace
426 to the _raw output.
427
428What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
429What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_scale
430What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_scale
431What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
432What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale
433What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_scale
434What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_scale
435What: /sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_scale
436What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
437What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
438What: /sys/bus/iio/devices/iio:deviceX/in_currentY_scale
439What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_scale
440What: /sys/bus/iio/devices/iio:deviceX/in_current_scale
441What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_scale
442What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_scale
443What: /sys/bus/iio/devices/iio:deviceX/in_current_i_scale
444What: /sys/bus/iio/devices/iio:deviceX/in_current_q_scale
445What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale
446What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
447What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
448What: /sys/bus/iio/devices/iio:deviceX/in_energy_scale
449What: /sys/bus/iio/devices/iio:deviceX/in_distance_scale
450What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale
451What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
452What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
453What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
454What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_scale
455What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_scale
456What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_scale
457What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale
458What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale
459What: /sys/bus/iio/devices/iio:deviceX/in_pressure_scale
460What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
461What: /sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
462What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
463What: /sys/bus/iio/devices/iio:deviceX/in_countY_scale
464What: /sys/bus/iio/devices/iio:deviceX/in_angl_scale
465What: /sys/bus/iio/devices/iio:deviceX/in_intensity_x_scale
466What: /sys/bus/iio/devices/iio:deviceX/in_intensity_y_scale
467What: /sys/bus/iio/devices/iio:deviceX/in_intensity_z_scale
468What: /sys/bus/iio/devices/iio:deviceX/in_concentration_co2_scale
469KernelVersion: 2.6.35
470Contact: linux-iio@vger.kernel.org
471Description:
472 If known for a device, scale to be applied to <type>Y[_name]_raw
473 post addition of <type>[Y][_name]_offset in order to obtain the
474 measured value in <type> units as specified in
475 <type>[Y][_name]_raw documentation. If shared across all in
476 channels then Y and <x|y|z> are not present and the value is
477 called <type>[Y][_name]_scale. The peak modifier means this
478 value is applied to <type>Y[_name]_peak_raw values.
479
480What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
481What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
482What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
483What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
484What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
485What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
486What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
487What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
488What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
489What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias
490KernelVersion: 2.6.35
491Contact: linux-iio@vger.kernel.org
492Description:
493 Hardware applied calibration offset (assumed to fix production
494 inaccuracies).
495 icm42600: For this device values are real physical offsets
496 expressed in SI units (m/s^2 for accelerometers and rad/s
497 for gyroscope)/
498
499What: /sys/bus/iio/devices/iio:deviceX/in_accel_calibbias_available
500What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_calibbias_available
501KernelVersion: 5.8
502Contact: linux-iio@vger.kernel.org
503Description:
504 Available values of calibbias. Maybe expressed as either of:
505
506 - a small discrete set of values like "0 2 4 6 8"
507 - a range specified as "[min step max]"
508
509What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
510What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
511What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_calibscale
512What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_calibscale
513What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_calibscale
514What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_calibscale
515What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage_calibscale
516What: /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
517What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
518What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
519What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
520What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
521What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
522What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
523What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
524What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
525What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
526What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
527What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale
528KernelVersion: 2.6.35
529Contact: linux-iio@vger.kernel.org
530Description:
531 Hardware applied calibration scale factor (assumed to fix
532 production inaccuracies). If shared across all channels,
533 <type>_calibscale is used.
534
535What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender
536What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender
537What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender
538What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender
539KernelVersion: 4.0
540Contact: linux-iio@vger.kernel.org
541Description:
542 Gender of the user (e.g.: male, female) used by some pedometers
543 to compute the stride length, distance, speed and activity
544 type.
545
546What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender_available
547What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender_available
548What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender_available
549What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender_available
550KernelVersion: 4.0
551Contact: linux-iio@vger.kernel.org
552Description:
553 Lists all available gender values (e.g.: male, female).
554
555What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibheight
556What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibheight
557What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibheight
558What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibheight
559KernelVersion: 3.19
560Contact: linux-iio@vger.kernel.org
561Description:
562 Height of the user (in meters) used by some pedometers
563 to compute the stride length, distance, speed and activity
564 type.
565
566What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibweight
567KernelVersion: 4.0
568Contact: linux-iio@vger.kernel.org
569Description:
570 Weight of the user (in kg). It is needed by some pedometers
571 to compute the calories burnt by the user.
572
573What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
574What: /sys/.../iio:deviceX/in_anglvel_scale_available
575What: /sys/.../iio:deviceX/in_magn_scale_available
576What: /sys/.../iio:deviceX/in_illuminance_scale_available
577What: /sys/.../iio:deviceX/in_intensity_scale_available
578What: /sys/.../iio:deviceX/in_proximity_scale_available
579What: /sys/.../iio:deviceX/in_voltageX_scale_available
580What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available
581What: /sys/.../iio:deviceX/out_voltageX_scale_available
582What: /sys/.../iio:deviceX/out_altvoltageX_scale_available
583What: /sys/.../iio:deviceX/in_capacitance_scale_available
584What: /sys/.../iio:deviceX/in_pressure_scale_available
585What: /sys/.../iio:deviceX/in_pressureY_scale_available
586KernelVersion: 2.6.35
587Contact: linux-iio@vger.kernel.org
588Description:
589 If a discrete set of scale values is available, they
590 are listed in this attribute.
591
592What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
593What: /sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain
594What: /sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain
595What: /sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain
596What: /sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain
597What: /sys/bus/iio/devices/iio:deviceX/in_intensity_clear_hardwaregain
598KernelVersion: 2.6.35
599Contact: linux-iio@vger.kernel.org
600Description:
601 Hardware applied gain factor. If shared across all channels,
602 <type>_hardwaregain is used.
603
604What: /sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain_available
605KernelVersion: 5.10
606Contact: linux-iio@vger.kernel.org
607Description:
608 Lists all available hardware applied gain factors. Shared across all
609 channels.
610
611What: /sys/.../in_accel_filter_low_pass_3db_frequency
612What: /sys/.../in_magn_filter_low_pass_3db_frequency
613What: /sys/.../in_anglvel_filter_low_pass_3db_frequency
614KernelVersion: 3.2
615Contact: linux-iio@vger.kernel.org
616Description:
617 If a known or controllable low pass filter is applied
618 to the underlying data channel, then this parameter
619 gives the 3dB frequency of the filter in Hz.
620
621What: /sys/.../in_accel_filter_high_pass_3db_frequency
622What: /sys/.../in_anglvel_filter_high_pass_3db_frequency
623What: /sys/.../in_magn_filter_high_pass_3db_frequency
624KernelVersion: 4.2
625Contact: linux-iio@vger.kernel.org
626Description:
627 If a known or controllable high pass filter is applied
628 to the underlying data channel, then this parameter
629 gives the 3dB frequency of the filter in Hz.
630
631What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
632What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
633KernelVersion: 2.6.37
634Contact: linux-iio@vger.kernel.org
635Description:
636 Raw (unscaled, no bias etc.) output voltage for
637 channel Y. The number must always be specified and
638 unique if the output corresponds to a single channel.
639 While DAC like devices typically use out_voltage,
640 a continuous frequency generating device, such as
641 a DDS or PLL should use out_altvoltage.
642
643What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
644What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
645KernelVersion: 2.6.37
646Contact: linux-iio@vger.kernel.org
647Description:
648 Raw (unscaled, no bias etc.) output voltage for an aggregate of
649 channel Y, channel Z, etc. This interface is available in cases
650 where a single output sets the value for multiple channels
651 simultaneously.
652
653What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
654What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
655What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
656What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
657KernelVersion: 2.6.38
658Contact: linux-iio@vger.kernel.org
659Description:
660 Specifies the output powerdown mode.
661 DAC output stage is disconnected from the amplifier and
662 1kohm_to_gnd: connected to ground via an 1kOhm resistor,
663 2.5kohm_to_gnd: connected to ground via a 2.5kOhm resistor,
664 6kohm_to_gnd: connected to ground via a 6kOhm resistor,
665 20kohm_to_gnd: connected to ground via a 20kOhm resistor,
666 90kohm_to_gnd: connected to ground via a 90kOhm resistor,
667 100kohm_to_gnd: connected to ground via an 100kOhm resistor,
668 125kohm_to_gnd: connected to ground via an 125kOhm resistor,
669 500kohm_to_gnd: connected to ground via a 500kOhm resistor,
670 640kohm_to_gnd: connected to ground via a 640kOhm resistor,
671 three_state: left floating.
672 For a list of available output power down options read
673 outX_powerdown_mode_available. If Y is not present the
674 mode is shared across all outputs.
675
676What: /sys/.../iio:deviceX/out_voltageY_powerdown_mode_available
677What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available
678What: /sys/.../iio:deviceX/out_altvoltageY_powerdown_mode_available
679What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
680KernelVersion: 2.6.38
681Contact: linux-iio@vger.kernel.org
682Description:
683 Lists all available output power down modes.
684 If Y is not present the mode is shared across all outputs.
685
686What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
687What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
688What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
689What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
690KernelVersion: 2.6.38
691Contact: linux-iio@vger.kernel.org
692Description:
693 Writing 1 causes output Y to enter the power down mode specified
694 by the corresponding outY_powerdown_mode. DAC output stage is
695 disconnected from the amplifier. Clearing returns to normal
696 operation. Y may be suppressed if all outputs are controlled
697 together.
698
699What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
700KernelVersion: 3.4.0
701Contact: linux-iio@vger.kernel.org
702Description:
703 Output frequency for channel Y in Hz. The number must always be
704 specified and unique if the output corresponds to a single
705 channel.
706 Some drivers have additional constraints:
707 ADF4371 has an integrated VCO with fundamendal output
708 frequency ranging from 4000000000 Hz 8000000000 Hz.
709
710 out_altvoltage0_frequency:
711 A divide by 1, 2, 4, 8, 16, 32 or circuit generates
712 frequencies from 62500000 Hz to 8000000000 Hz.
713 out_altvoltage1_frequency:
714 This channel duplicates the channel 0 frequency
715 out_altvoltage2_frequency:
716 A frequency doubler generates frequencies from
717 8000000000 Hz to 16000000000 Hz.
718 out_altvoltage3_frequency:
719 A frequency quadrupler generates frequencies from
720 16000000000 Hz to 32000000000 Hz.
721
722 Note: writes to one of the channels will affect the frequency of
723 all the other channels, since it involves changing the VCO
724 fundamental output frequency.
725
726What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
727KernelVersion: 3.4.0
728Contact: linux-iio@vger.kernel.org
729Description:
730 Phase in radians of one frequency/clock output Y
731 (out_altvoltageY) relative to another frequency/clock output
732 (out_altvoltageZ) of the device X. The number must always be
733 specified and unique if the output corresponds to a single
734 channel.
735
736What: /sys/bus/iio/devices/iio:deviceX/out_currentY_raw
737Date: May 2012
738KernelVersion: 3.5
739Contact: Johan Hovold <jhovold@gmail.com>
740Description:
741 Set/get output current for channel Y. Units after application
742 of scale and offset are milliamps.
743 For some devices current channels are used to specify
744 current supplied to elements used in taking a measurement
745 of a different type. E.g. LED currents.
746
747What: /sys/bus/iio/devices/iio:deviceX/events
748KernelVersion: 2.6.35
749Contact: linux-iio@vger.kernel.org
750Description:
751 Configuration of which hardware generated events are passed up
752 to user-space.
753
754What: /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en
755What: /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en
756What: /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en
757What: /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en
758What: /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en
759What: /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en
760What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en
761What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en
762What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en
763What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en
764What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en
765What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en
766What: /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en
767What: /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en
768What: /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en
769What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en
770What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en
771What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en
772What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_rising_en
773What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_falling_en
774What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_rising_en
775What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_falling_en
776What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_en
777What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_en
778What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_rising_en
779What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_falling_en
780What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en
781What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en
782What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en
783What: /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
784What: /sys/.../iio:deviceX/events/in_voltageY_thresh_either_en
785What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
786What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
787What: /sys/.../iio:deviceX/events/in_capacitanceY_thresh_rising_en
788What: /sys/.../iio:deviceX/events/in_capacitanceY_thresh_falling_en
789KernelVersion: 2.6.37
790Contact: linux-iio@vger.kernel.org
791Description:
792 Event generated when channel passes a threshold in the specified
793 (_rising|_falling) direction. If the direction is not specified,
794 then either the device will report an event which ever direction
795 a single threshold value is passed in (e.g.
796 <type>[Y][_name]_<raw|input>_thresh_value) or
797 <type>[Y][_name]_<raw|input>_thresh_rising_value and
798 <type>[Y][_name]_<raw|input>_thresh_falling_value may take
799 different values, but the device can only enable both thresholds
800 or neither.
801
802 Note the driver will assume the last p events requested are
803 to be enabled where p is how many it supports (which may vary
804 depending on the exact set requested. So if you want to be
805 sure you have set what you think you have, check the contents of
806 these attributes after everything is configured. Drivers may
807 have to buffer any parameters so that they are consistent when
808 a given event type is enabled at a future point (and not those for
809 whatever event was previously enabled).
810
811What: /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en
812What: /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en
813What: /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
814What: /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
815What: /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
816What: /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
817What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
818What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
819What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
820What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en
821What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en
822What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en
823What: /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en
824What: /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en
825What: /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en
826What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en
827What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en
828What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en
829What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_rising_en
830What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_falling_en
831What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_rising_en
832What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_falling_en
833What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_rising_en
834What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_falling_en
835What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_rising_en
836What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_falling_en
837What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en
838What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en
839What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en
840What: /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en
841What: /sys/.../iio:deviceX/events/in_tempY_roc_rising_en
842What: /sys/.../iio:deviceX/events/in_tempY_roc_falling_en
843KernelVersion: 2.6.37
844Contact: linux-iio@vger.kernel.org
845Description:
846 Event generated when channel passes a threshold on the rate of
847 change (1st differential) in the specified (_rising|_falling)
848 direction. If the direction is not specified, then either the
849 device will report an event which ever direction a single
850 threshold value is passed in (e.g.
851 <type>[Y][_name]_<raw|input>_roc_value) or
852 <type>[Y][_name]_<raw|input>_roc_rising_value and
853 <type>[Y][_name]_<raw|input>_roc_falling_value may take
854 different values, but the device can only enable both rate of
855 change thresholds or neither.
856
857 Note the driver will assume the last p events requested are
858 to be enabled where p is however many it supports (which may
859 vary depending on the exact set requested. So if you want to be
860 sure you have set what you think you have, check the contents of
861 these attributes after everything is configured. Drivers may
862 have to buffer any parameters so that they are consistent when
863 a given event type is enabled a future point (and not those for
864 whatever event was previously enabled).
865
866What: /sys/.../events/in_capacitanceY_adaptive_thresh_rising_en
867What: /sys/.../events/in_capacitanceY_adaptive_thresh_falling_en
868KernelVersion: 5.13
869Contact: linux-iio@vger.kernel.org
870Description:
871 Adaptive thresholds are similar to normal fixed thresholds
872 but the value is expressed as an offset from a value which
873 provides a low frequency approximation of the channel itself.
874 Thus these detect if a rapid change occurs in the specified
875 direction which crosses tracking value + offset.
876 Tracking value calculation is devices specific.
877
878What: /sys/.../in_capacitanceY_adaptive_thresh_rising_timeout
879What: /sys/.../in_capacitanceY_adaptive_thresh_falling_timeout
880KernelVersion: 5.11
881Contact: linux-iio@vger.kernel.org
882Description:
883 When adaptive thresholds are used, the tracking signal
884 may adjust too slowly to step changes in the raw signal.
885 Thus these specify the time in seconds for which the
886 difference between the slow tracking signal and the raw
887 signal is allowed to remain out-of-range before a reset
888 event occurs in which the tracking signal is made equal
889 to the raw signal, allowing slow tracking to resume and the
890 adaptive threshold event detection to function as expected.
891
892What: /sys/.../events/in_accel_thresh_rising_value
893What: /sys/.../events/in_accel_thresh_falling_value
894What: /sys/.../events/in_accel_x_raw_thresh_rising_value
895What: /sys/.../events/in_accel_x_raw_thresh_falling_value
896What: /sys/.../events/in_accel_y_raw_thresh_rising_value
897What: /sys/.../events/in_accel_y_raw_thresh_falling_value
898What: /sys/.../events/in_accel_z_raw_thresh_rising_value
899What: /sys/.../events/in_accel_z_raw_thresh_falling_value
900What: /sys/.../events/in_anglvel_x_raw_thresh_rising_value
901What: /sys/.../events/in_anglvel_x_raw_thresh_falling_value
902What: /sys/.../events/in_anglvel_y_raw_thresh_rising_value
903What: /sys/.../events/in_anglvel_y_raw_thresh_falling_value
904What: /sys/.../events/in_anglvel_z_raw_thresh_rising_value
905What: /sys/.../events/in_anglvel_z_raw_thresh_falling_value
906What: /sys/.../events/in_magn_x_raw_thresh_rising_value
907What: /sys/.../events/in_magn_x_raw_thresh_falling_value
908What: /sys/.../events/in_magn_y_raw_thresh_rising_value
909What: /sys/.../events/in_magn_y_raw_thresh_falling_value
910What: /sys/.../events/in_magn_z_raw_thresh_rising_value
911What: /sys/.../events/in_magn_z_raw_thresh_falling_value
912What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_rising_value
913What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_falling_value
914What: /sys/.../events/in_rot_from_north_true_raw_thresh_rising_value
915What: /sys/.../events/in_rot_from_north_true_raw_thresh_falling_value
916What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_rising_value
917What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_falling_value
918What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_rising_value
919What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_falling_value
920What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value
921What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value
922What: /sys/.../events/in_voltageY_raw_thresh_rising_value
923What: /sys/.../events/in_voltageY_raw_thresh_falling_value
924What: /sys/.../events/in_tempY_raw_thresh_rising_value
925What: /sys/.../events/in_tempY_raw_thresh_falling_value
926What: /sys/.../events/in_illuminance0_thresh_falling_value
927What: /sys/.../events/in_illuminance0_thresh_rising_value
928What: /sys/.../events/in_proximity0_thresh_falling_value
929What: /sys/.../events/in_proximity0_thresh_rising_value
930What: /sys/.../events/in_illuminance_thresh_rising_value
931What: /sys/.../events/in_illuminance_thresh_falling_value
932What: /sys/.../events/in_capacitanceY_thresh_rising_value
933What: /sys/.../events/in_capacitanceY_thresh_falling_value
934What: /sys/.../events/in_capacitanceY_thresh_adaptive_rising_value
935What: /sys/.../events/in_capacitanceY_thresh_falling_rising_value
936KernelVersion: 2.6.37
937Contact: linux-iio@vger.kernel.org
938Description:
939 Specifies the value of threshold that the device is comparing
940 against for the events enabled by
941 <type>Y[_name]_thresh[_rising|falling]_en.
942
943 If separate attributes exist for the two directions, but
944 direction is not specified for this attribute, then a single
945 threshold value applies to both directions.
946
947 The raw or input element of the name indicates whether the
948 value is in raw device units or in processed units (as _raw
949 and _input do on sysfs direct channel read attributes).
950
951What: /sys/.../events/in_accel_scale
952What: /sys/.../events/in_accel_peak_scale
953What: /sys/.../events/in_anglvel_scale
954What: /sys/.../events/in_magn_scale
955What: /sys/.../events/in_rot_from_north_magnetic_scale
956What: /sys/.../events/in_rot_from_north_true_scale
957What: /sys/.../events/in_voltage_scale
958What: /sys/.../events/in_voltage_supply_scale
959What: /sys/.../events/in_temp_scale
960What: /sys/.../events/in_illuminance_scale
961What: /sys/.../events/in_proximity_scale
962KernelVersion: 3.21
963Contact: linux-iio@vger.kernel.org
964Description:
965 Specifies the conversion factor from the standard units
966 to device specific units used to set the event trigger
967 threshold.
968
969What: /sys/.../events/in_accel_x_thresh_rising_hysteresis
970What: /sys/.../events/in_accel_x_thresh_falling_hysteresis
971What: /sys/.../events/in_accel_x_thresh_either_hysteresis
972What: /sys/.../events/in_accel_y_thresh_rising_hysteresis
973What: /sys/.../events/in_accel_y_thresh_falling_hysteresis
974What: /sys/.../events/in_accel_y_thresh_either_hysteresis
975What: /sys/.../events/in_accel_z_thresh_rising_hysteresis
976What: /sys/.../events/in_accel_z_thresh_falling_hysteresis
977What: /sys/.../events/in_accel_z_thresh_either_hysteresis
978What: /sys/.../events/in_anglvel_x_thresh_rising_hysteresis
979What: /sys/.../events/in_anglvel_x_thresh_falling_hysteresis
980What: /sys/.../events/in_anglvel_x_thresh_either_hysteresis
981What: /sys/.../events/in_anglvel_y_thresh_rising_hysteresis
982What: /sys/.../events/in_anglvel_y_thresh_falling_hysteresis
983What: /sys/.../events/in_anglvel_y_thresh_either_hysteresis
984What: /sys/.../events/in_anglvel_z_thresh_rising_hysteresis
985What: /sys/.../events/in_anglvel_z_thresh_falling_hysteresis
986What: /sys/.../events/in_anglvel_z_thresh_either_hysteresis
987What: /sys/.../events/in_magn_x_thresh_rising_hysteresis
988What: /sys/.../events/in_magn_x_thresh_falling_hysteresis
989What: /sys/.../events/in_magn_x_thresh_either_hysteresis
990What: /sys/.../events/in_magn_y_thresh_rising_hysteresis
991What: /sys/.../events/in_magn_y_thresh_falling_hysteresis
992What: /sys/.../events/in_magn_y_thresh_either_hysteresis
993What: /sys/.../events/in_magn_z_thresh_rising_hysteresis
994What: /sys/.../events/in_magn_z_thresh_falling_hysteresis
995What: /sys/.../events/in_magn_z_thresh_either_hysteresis
996What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_hysteresis
997What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_hysteresis
998What: /sys/.../events/in_rot_from_north_magnetic_thresh_either_hysteresis
999What: /sys/.../events/in_rot_from_north_true_thresh_rising_hysteresis
1000What: /sys/.../events/in_rot_from_north_true_thresh_falling_hysteresis
1001What: /sys/.../events/in_rot_from_north_true_thresh_either_hysteresis
1002What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_hysteresis
1003What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_hysteresis
1004What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_either_hysteresis
1005What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_hysteresis
1006What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_hysteresis
1007What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_either_hysteresis
1008What: /sys/.../events/in_voltageY_thresh_rising_hysteresis
1009What: /sys/.../events/in_voltageY_thresh_falling_hysteresis
1010What: /sys/.../events/in_voltageY_thresh_either_hysteresis
1011What: /sys/.../events/in_tempY_thresh_rising_hysteresis
1012What: /sys/.../events/in_tempY_thresh_falling_hysteresis
1013What: /sys/.../events/in_tempY_thresh_either_hysteresis
1014What: /sys/.../events/in_illuminance0_thresh_falling_hysteresis
1015What: /sys/.../events/in_illuminance0_thresh_rising_hysteresis
1016What: /sys/.../events/in_illuminance0_thresh_either_hysteresis
1017What: /sys/.../events/in_proximity0_thresh_falling_hysteresis
1018What: /sys/.../events/in_proximity0_thresh_rising_hysteresis
1019What: /sys/.../events/in_proximity0_thresh_either_hysteresis
1020KernelVersion: 3.13
1021Contact: linux-iio@vger.kernel.org
1022Description:
1023 Specifies the hysteresis of threshold that the device is comparing
1024 against for the events enabled by
1025 <type>Y[_name]_thresh[_(rising|falling)]_hysteresis.
1026 If separate attributes exist for the two directions, but
1027 direction is not specified for this attribute, then a single
1028 hysteresis value applies to both directions.
1029
1030 For falling events the hysteresis is added to the _value attribute for
1031 this event to get the upper threshold for when the event goes back to
1032 normal, for rising events the hysteresis is subtracted from the _value
1033 attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200
1034 and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event
1035 will get activated once in_voltage0_raw goes above 1200 and will become
1036 deactivated again once the value falls below 1150.
1037
1038What: /sys/.../events/in_accel_x_raw_roc_rising_value
1039What: /sys/.../events/in_accel_x_raw_roc_falling_value
1040What: /sys/.../events/in_accel_y_raw_roc_rising_value
1041What: /sys/.../events/in_accel_y_raw_roc_falling_value
1042What: /sys/.../events/in_accel_z_raw_roc_rising_value
1043What: /sys/.../events/in_accel_z_raw_roc_falling_value
1044What: /sys/.../events/in_anglvel_x_raw_roc_rising_value
1045What: /sys/.../events/in_anglvel_x_raw_roc_falling_value
1046What: /sys/.../events/in_anglvel_y_raw_roc_rising_value
1047What: /sys/.../events/in_anglvel_y_raw_roc_falling_value
1048What: /sys/.../events/in_anglvel_z_raw_roc_rising_value
1049What: /sys/.../events/in_anglvel_z_raw_roc_falling_value
1050What: /sys/.../events/in_magn_x_raw_roc_rising_value
1051What: /sys/.../events/in_magn_x_raw_roc_falling_value
1052What: /sys/.../events/in_magn_y_raw_roc_rising_value
1053What: /sys/.../events/in_magn_y_raw_roc_falling_value
1054What: /sys/.../events/in_magn_z_raw_roc_rising_value
1055What: /sys/.../events/in_magn_z_raw_roc_falling_value
1056What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_rising_value
1057What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_falling_value
1058What: /sys/.../events/in_rot_from_north_true_raw_roc_rising_value
1059What: /sys/.../events/in_rot_from_north_true_raw_roc_falling_value
1060What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_rising_value
1061What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_falling_value
1062What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_rising_value
1063What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_falling_value
1064What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value
1065What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value
1066What: /sys/.../events/in_voltageY_raw_roc_rising_value
1067What: /sys/.../events/in_voltageY_raw_roc_falling_value
1068What: /sys/.../events/in_tempY_raw_roc_rising_value
1069What: /sys/.../events/in_tempY_raw_roc_falling_value
1070KernelVersion: 2.6.37
1071Contact: linux-iio@vger.kernel.org
1072Description:
1073 Specifies the value of rate of change threshold that the
1074 device is comparing against for the events enabled by
1075 <type>[Y][_name]_roc[_rising|falling]_en.
1076
1077 If separate attributes exist for the two directions,
1078 but direction is not specified for this attribute,
1079 then a single threshold value applies to both directions.
1080 The raw or input element of the name indicates whether the
1081 value is in raw device units or in processed units (as _raw
1082 and _input do on sysfs direct channel read attributes).
1083
1084What: /sys/.../events/in_accel_x_thresh_rising_period
1085What: /sys/.../events/in_accel_x_thresh_falling_period
1086What: /sys/.../events/in_accel_x_roc_rising_period
1087What: /sys/.../events/in_accel_x_roc_falling_period
1088What: /sys/.../events/in_accel_y_thresh_rising_period
1089What: /sys/.../events/in_accel_y_thresh_falling_period
1090What: /sys/.../events/in_accel_y_roc_rising_period
1091What: /sys/.../events/in_accel_y_roc_falling_period
1092What: /sys/.../events/in_accel_z_thresh_rising_period
1093What: /sys/.../events/in_accel_z_thresh_falling_period
1094What: /sys/.../events/in_accel_z_roc_rising_period
1095What: /sys/.../events/in_accel_z_roc_falling_period
1096What: /sys/.../events/in_anglvel_x_thresh_rising_period
1097What: /sys/.../events/in_anglvel_x_thresh_falling_period
1098What: /sys/.../events/in_anglvel_x_roc_rising_period
1099What: /sys/.../events/in_anglvel_x_roc_falling_period
1100What: /sys/.../events/in_anglvel_y_thresh_rising_period
1101What: /sys/.../events/in_anglvel_y_thresh_falling_period
1102What: /sys/.../events/in_anglvel_y_roc_rising_period
1103What: /sys/.../events/in_anglvel_y_roc_falling_period
1104What: /sys/.../events/in_anglvel_z_thresh_rising_period
1105What: /sys/.../events/in_anglvel_z_thresh_falling_period
1106What: /sys/.../events/in_anglvel_z_roc_rising_period
1107What: /sys/.../events/in_anglvel_z_roc_falling_period
1108What: /sys/.../events/in_magn_x_thresh_rising_period
1109What: /sys/.../events/in_magn_x_thresh_falling_period
1110What: /sys/.../events/in_magn_x_roc_rising_period
1111What: /sys/.../events/in_magn_x_roc_falling_period
1112What: /sys/.../events/in_magn_y_thresh_rising_period
1113What: /sys/.../events/in_magn_y_thresh_falling_period
1114What: /sys/.../events/in_magn_y_roc_rising_period
1115What: /sys/.../events/in_magn_y_roc_falling_period
1116What: /sys/.../events/in_magn_z_thresh_rising_period
1117What: /sys/.../events/in_magn_z_thresh_falling_period
1118What: /sys/.../events/in_magn_z_roc_rising_period
1119What: /sys/.../events/in_magn_z_roc_falling_period
1120What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_period
1121What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_period
1122What: /sys/.../events/in_rot_from_north_magnetic_roc_rising_period
1123What: /sys/.../events/in_rot_from_north_magnetic_roc_falling_period
1124What: /sys/.../events/in_rot_from_north_true_thresh_rising_period
1125What: /sys/.../events/in_rot_from_north_true_thresh_falling_period
1126What: /sys/.../events/in_rot_from_north_true_roc_rising_period
1127What: /sys/.../events/in_rot_from_north_true_roc_falling_period
1128What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_period
1129What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_period
1130What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_rising_period
1131What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_falling_period
1132What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_period
1133What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_period
1134What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_rising_period
1135What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_falling_period
1136What: /sys/.../events/in_voltageY_supply_thresh_rising_period
1137What: /sys/.../events/in_voltageY_supply_thresh_falling_period
1138What: /sys/.../events/in_voltageY_supply_roc_rising_period
1139What: /sys/.../events/in_voltageY_supply_roc_falling_period
1140What: /sys/.../events/in_voltageY_thresh_rising_period
1141What: /sys/.../events/in_voltageY_thresh_falling_period
1142What: /sys/.../events/in_voltageY_roc_rising_period
1143What: /sys/.../events/in_voltageY_roc_falling_period
1144What: /sys/.../events/in_tempY_thresh_rising_period
1145What: /sys/.../events/in_tempY_thresh_falling_period
1146What: /sys/.../events/in_tempY_roc_rising_period
1147What: /sys/.../events/in_tempY_roc_falling_period
1148What: /sys/.../events/in_accel_x&y&z_mag_falling_period
1149What: /sys/.../events/in_intensity0_thresh_period
1150What: /sys/.../events/in_proximity0_thresh_period
1151What: /sys/.../events/in_activity_still_thresh_rising_period
1152What: /sys/.../events/in_activity_still_thresh_falling_period
1153What: /sys/.../events/in_activity_walking_thresh_rising_period
1154What: /sys/.../events/in_activity_walking_thresh_falling_period
1155What: /sys/.../events/in_activity_jogging_thresh_rising_period
1156What: /sys/.../events/in_activity_jogging_thresh_falling_period
1157What: /sys/.../events/in_activity_running_thresh_rising_period
1158What: /sys/.../events/in_activity_running_thresh_falling_period
1159What: /sys/.../events/in_illuminance_thresh_either_period
1160KernelVersion: 2.6.37
1161Contact: linux-iio@vger.kernel.org
1162Description:
1163 Period of time (in seconds) for which the condition must be
1164 met before an event is generated. If direction is not
1165 specified then this period applies to both directions.
1166
1167What: /sys/.../events/in_accel_thresh_rising_low_pass_filter_3db
1168What: /sys/.../events/in_anglvel_thresh_rising_low_pass_filter_3db
1169What: /sys/.../events/in_magn_thresh_rising_low_pass_filter_3db
1170KernelVersion: 4.2
1171Contact: linux-iio@vger.kernel.org
1172Description:
1173 If a low pass filter can be applied to the event generation
1174 this property gives its 3db frequency in Hz.
1175 A value of zero disables the filter.
1176
1177What: /sys/.../events/in_accel_thresh_rising_high_pass_filter_3db
1178What: /sys/.../events/in_anglvel_thresh_rising_high_pass_filter_3db
1179What: /sys/.../events/in_magn_thresh_rising_high_pass_filter_3db
1180KernelVersion: 4.2
1181Contact: linux-iio@vger.kernel.org
1182Description:
1183 If a high pass filter can be applied to the event generation
1184 this property gives its 3db frequency in Hz.
1185 A value of zero disables the filter.
1186
1187What: /sys/.../events/in_activity_still_thresh_rising_en
1188What: /sys/.../events/in_activity_still_thresh_falling_en
1189What: /sys/.../events/in_activity_walking_thresh_rising_en
1190What: /sys/.../events/in_activity_walking_thresh_falling_en
1191What: /sys/.../events/in_activity_jogging_thresh_rising_en
1192What: /sys/.../events/in_activity_jogging_thresh_falling_en
1193What: /sys/.../events/in_activity_running_thresh_rising_en
1194What: /sys/.../events/in_activity_running_thresh_falling_en
1195KernelVersion: 3.19
1196Contact: linux-iio@vger.kernel.org
1197Description:
1198 Enables or disables activity events. Depending on direction
1199 an event is generated when sensor ENTERS or LEAVES a given state.
1200
1201What: /sys/.../events/in_activity_still_thresh_rising_value
1202What: /sys/.../events/in_activity_still_thresh_falling_value
1203What: /sys/.../events/in_activity_walking_thresh_rising_value
1204What: /sys/.../events/in_activity_walking_thresh_falling_value
1205What: /sys/.../events/in_activity_jogging_thresh_rising_value
1206What: /sys/.../events/in_activity_jogging_thresh_falling_value
1207What: /sys/.../events/in_activity_running_thresh_rising_value
1208What: /sys/.../events/in_activity_running_thresh_falling_value
1209KernelVersion: 3.19
1210Contact: linux-iio@vger.kernel.org
1211Description:
1212 Confidence value (in units as percentage) to be used
1213 for deciding when an event should be generated. E.g for
1214 running: If the confidence value reported by the sensor
1215 is greater than in_activity_running_thresh_rising_value
1216 then the sensor ENTERS running state. Conversely, if the
1217 confidence value reported by the sensor is lower than
1218 in_activity_running_thresh_falling_value then the sensor
1219 is LEAVING running state.
1220
1221What: /sys/.../iio:deviceX/events/in_accel_mag_en
1222What: /sys/.../iio:deviceX/events/in_accel_mag_rising_en
1223What: /sys/.../iio:deviceX/events/in_accel_mag_falling_en
1224What: /sys/.../iio:deviceX/events/in_accel_x_mag_en
1225What: /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en
1226What: /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en
1227What: /sys/.../iio:deviceX/events/in_accel_y_mag_en
1228What: /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en
1229What: /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en
1230What: /sys/.../iio:deviceX/events/in_accel_z_mag_en
1231What: /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en
1232What: /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en
1233What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en
1234What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en
1235KernelVersion: 2.6.37
1236Contact: linux-iio@vger.kernel.org
1237Description:
1238 Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
1239 magnitude of the channel is compared to the threshold, not its
1240 signed value.
1241
1242What: /sys/.../events/in_accel_raw_mag_value
1243What: /sys/.../events/in_accel_x_raw_mag_rising_value
1244What: /sys/.../events/in_accel_y_raw_mag_rising_value
1245What: /sys/.../events/in_accel_z_raw_mag_rising_value
1246KernelVersion: 2.6.37
1247Contact: linux-iio@vger.kernel.org
1248Description:
1249 The value to which the magnitude of the channel is compared. If
1250 number or direction is not specified, applies to all channels of
1251 this type.
1252
1253What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_en
1254What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_rising_en
1255What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_falling_en
1256What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_en
1257What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_rising_en
1258What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_falling_en
1259KernelVersion: 5.18
1260Contact: linux-iio@vger.kernel.org
1261Description:
1262 Similar to in_accel_mag[_y][_rising|_falling]_en, but the event
1263 value is relative to a reference magnitude. The reference magnitude
1264 includes the graviational acceleration.
1265
1266What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_value
1267What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_rising_value
1268What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_falling_value
1269What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_value
1270What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_rising_value
1271What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_falling_value
1272KernelVersion: 5.18
1273Contact: linux-iio@vger.kernel.org
1274Description:
1275 The value to which the reference magnitude of the channel is
1276 compared. If the axis is not specified, it applies to all channels
1277 of this type.
1278
1279What: /sys/.../events/in_steps_change_en
1280KernelVersion: 4.0
1281Contact: linux-iio@vger.kernel.org
1282Description:
1283 Event generated when channel passes a threshold on the absolute
1284 change in value. E.g. for steps: a step change event is
1285 generated each time the user takes N steps, where N is set using
1286 in_steps_change_value.
1287
1288What: /sys/.../events/in_steps_change_value
1289KernelVersion: 4.0
1290Contact: linux-iio@vger.kernel.org
1291Description:
1292 Specifies the value of change threshold that the
1293 device is comparing against for the events enabled by
1294 <type>[Y][_name]_roc[_rising|falling|]_en. E.g. for steps:
1295 if set to 3, a step change event will be generated every 3
1296 steps.
1297
1298What: /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger
1299KernelVersion: 2.6.35
1300Contact: linux-iio@vger.kernel.org
1301Description:
1302 The name of the trigger source being used, as per string given
1303 in /sys/class/iio/triggerY/name.
1304
1305What: /sys/bus/iio/devices/iio:deviceX/bufferY/length
1306KernelVersion: 5.11
1307Contact: linux-iio@vger.kernel.org
1308Description:
1309 Number of scans contained by the buffer.
1310
1311What: /sys/bus/iio/devices/iio:deviceX/bufferY/enable
1312KernelVersion: 5.11
1313Contact: linux-iio@vger.kernel.org
1314Description:
1315 Actually start the buffer capture up. Will start trigger
1316 if first device and appropriate.
1317
1318 Note that it might be impossible to configure other attributes,
1319 (e.g.: events, scale, sampling rate) if they impact the currently
1320 active buffer capture session.
1321
1322What: /sys/bus/iio/devices/iio:deviceX/bufferY
1323KernelVersion: 5.11
1324Contact: linux-iio@vger.kernel.org
1325Description:
1326 Directory containing interfaces for elements that will be
1327 captured for a single triggered sample set in the buffer.
1328
1329 Since kernel 5.11 the scan_elements attributes are merged into
1330 the bufferY directory, to be configurable per buffer.
1331
1332What: /sys/.../iio:deviceX/bufferY/in_accel_x_en
1333What: /sys/.../iio:deviceX/bufferY/in_accel_y_en
1334What: /sys/.../iio:deviceX/bufferY/in_accel_z_en
1335What: /sys/.../iio:deviceX/bufferY/in_anglvel_x_en
1336What: /sys/.../iio:deviceX/bufferY/in_anglvel_y_en
1337What: /sys/.../iio:deviceX/bufferY/in_anglvel_z_en
1338What: /sys/.../iio:deviceX/bufferY/in_magn_x_en
1339What: /sys/.../iio:deviceX/bufferY/in_magn_y_en
1340What: /sys/.../iio:deviceX/bufferY/in_magn_z_en
1341What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_en
1342What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_en
1343What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_tilt_comp_en
1344What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_tilt_comp_en
1345What: /sys/.../iio:deviceX/bufferY/in_timestamp_en
1346What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_en
1347What: /sys/.../iio:deviceX/bufferY/in_voltageY_en
1348What: /sys/.../iio:deviceX/bufferY/in_voltageY-voltageZ_en
1349What: /sys/.../iio:deviceX/bufferY/in_voltageY_i_en
1350What: /sys/.../iio:deviceX/bufferY/in_voltageY_q_en
1351What: /sys/.../iio:deviceX/bufferY/in_voltage_i_en
1352What: /sys/.../iio:deviceX/bufferY/in_voltage_q_en
1353What: /sys/.../iio:deviceX/bufferY/in_incli_x_en
1354What: /sys/.../iio:deviceX/bufferY/in_incli_y_en
1355What: /sys/.../iio:deviceX/bufferY/in_pressureY_en
1356What: /sys/.../iio:deviceX/bufferY/in_pressure_en
1357What: /sys/.../iio:deviceX/bufferY/in_rot_quaternion_en
1358What: /sys/.../iio:deviceX/bufferY/in_proximity_en
1359KernelVersion: 5.11
1360Contact: linux-iio@vger.kernel.org
1361Description:
1362 Scan element control for triggered data capture.
1363
1364What: /sys/.../iio:deviceX/bufferY/in_accel_type
1365What: /sys/.../iio:deviceX/bufferY/in_anglvel_type
1366What: /sys/.../iio:deviceX/bufferY/in_magn_type
1367What: /sys/.../iio:deviceX/bufferY/in_incli_type
1368What: /sys/.../iio:deviceX/bufferY/in_voltageY_type
1369What: /sys/.../iio:deviceX/bufferY/in_voltage_type
1370What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_type
1371What: /sys/.../iio:deviceX/bufferY/in_voltageY_i_type
1372What: /sys/.../iio:deviceX/bufferY/in_voltageY_q_type
1373What: /sys/.../iio:deviceX/bufferY/in_voltage_i_type
1374What: /sys/.../iio:deviceX/bufferY/in_voltage_q_type
1375What: /sys/.../iio:deviceX/bufferY/in_timestamp_type
1376What: /sys/.../iio:deviceX/bufferY/in_pressureY_type
1377What: /sys/.../iio:deviceX/bufferY/in_pressure_type
1378What: /sys/.../iio:deviceX/bufferY/in_rot_quaternion_type
1379What: /sys/.../iio:deviceX/bufferY/in_proximity_type
1380KernelVersion: 5.11
1381Contact: linux-iio@vger.kernel.org
1382Description:
1383 Description of the scan element data storage within the buffer
1384 and hence the form in which it is read from user-space.
1385 Form is [be|le]:[s|u]bits/storagebits[>>shift].
1386 be or le specifies big or little endian. s or u specifies if
1387 signed (2's complement) or unsigned. bits is the number of bits
1388 of data and storagebits is the space (after padding) that it
1389 occupies in the buffer. shift if specified, is the shift that
1390 needs to be applied prior to masking out unused bits. Some
1391 devices put their data in the middle of the transferred elements
1392 with additional information on both sides. Note that some
1393 devices will have additional information in the unused bits
1394 so to get a clean value, the bits value must be used to mask
1395 the buffer output value appropriately. The storagebits value
1396 also specifies the data alignment. So s48/64>>2 will be a
1397 signed 48 bit integer stored in a 64 bit location aligned to
1398 a 64 bit boundary. To obtain the clean value, shift right 2
1399 and apply a mask to zero the top 16 bits of the result.
1400 For other storage combinations this attribute will be extended
1401 appropriately.
1402
1403What: /sys/.../iio:deviceX/scan_elements/in_accel_type_available
1404KernelVersion: 2.6.37
1405Contact: linux-iio@vger.kernel.org
1406Description:
1407 If the type parameter can take one of a small set of values,
1408 this attribute lists them.
1409
1410What: /sys/.../iio:deviceX/bufferY/in_voltageY_index
1411What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_index
1412What: /sys/.../iio:deviceX/bufferY/in_voltageY_i_index
1413What: /sys/.../iio:deviceX/bufferY/in_voltageY_q_index
1414What: /sys/.../iio:deviceX/bufferY/in_voltage_i_index
1415What: /sys/.../iio:deviceX/bufferY/in_voltage_q_index
1416What: /sys/.../iio:deviceX/bufferY/in_accel_x_index
1417What: /sys/.../iio:deviceX/bufferY/in_accel_y_index
1418What: /sys/.../iio:deviceX/bufferY/in_accel_z_index
1419What: /sys/.../iio:deviceX/bufferY/in_anglvel_x_index
1420What: /sys/.../iio:deviceX/bufferY/in_anglvel_y_index
1421What: /sys/.../iio:deviceX/bufferY/in_anglvel_z_index
1422What: /sys/.../iio:deviceX/bufferY/in_magn_x_index
1423What: /sys/.../iio:deviceX/bufferY/in_magn_y_index
1424What: /sys/.../iio:deviceX/bufferY/in_magn_z_index
1425What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_index
1426What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_index
1427What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_tilt_comp_index
1428What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_tilt_comp_index
1429What: /sys/.../iio:deviceX/bufferY/in_incli_x_index
1430What: /sys/.../iio:deviceX/bufferY/in_incli_y_index
1431What: /sys/.../iio:deviceX/bufferY/in_timestamp_index
1432What: /sys/.../iio:deviceX/bufferY/in_pressureY_index
1433What: /sys/.../iio:deviceX/bufferY/in_pressure_index
1434What: /sys/.../iio:deviceX/bufferY/in_rot_quaternion_index
1435What: /sys/.../iio:deviceX/bufferY/in_proximity_index
1436KernelVersion: 5.11
1437Contact: linux-iio@vger.kernel.org
1438Description:
1439 A single positive integer specifying the position of this
1440 scan element in the buffer. Note these are not dependent on
1441 what is enabled and may not be contiguous. Thus for user-space
1442 to establish the full layout these must be used in conjunction
1443 with all _en attributes to establish which channels are present,
1444 and the relevant _type attributes to establish the data storage
1445 format.
1446
1447What: /sys/.../iio:deviceX/in_activity_still_input
1448What: /sys/.../iio:deviceX/in_activity_walking_input
1449What: /sys/.../iio:deviceX/in_activity_jogging_input
1450What: /sys/.../iio:deviceX/in_activity_running_input
1451KernelVersion: 3.19
1452Contact: linux-iio@vger.kernel.org
1453Description:
1454 This attribute is used to read the confidence for an activity
1455 expressed in units as percentage.
1456
1457What: /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw
1458KernelVersion: 2.6.38
1459Contact: linux-iio@vger.kernel.org
1460Description:
1461 This attribute is used to read the amount of quadrature error
1462 present in the device at a given time.
1463
1464What: /sys/.../iio:deviceX/in_accelX_power_mode
1465KernelVersion: 3.11
1466Contact: linux-iio@vger.kernel.org
1467Description:
1468 Specifies the chip power mode.
1469 low_noise: reduce noise level from ADC,
1470 low_power: enable low current consumption.
1471 For a list of available output power modes read
1472 in_accel_power_mode_available.
1473
1474What: /sys/.../iio:deviceX/in_energy_input
1475What: /sys/.../iio:deviceX/in_energy_raw
1476KernelVersion: 4.0
1477Contact: linux-iio@vger.kernel.org
1478Description:
1479 This attribute is used to read the energy value reported by the
1480 device (e.g.: human activity sensors report energy burnt by the
1481 user). Units after application of scale are Joules.
1482
1483What: /sys/.../iio:deviceX/in_distance_input
1484What: /sys/.../iio:deviceX/in_distance_raw
1485KernelVersion: 4.0
1486Contact: linux-iio@vger.kernel.org
1487Description:
1488 This attribute is used to read the measured distance to an object
1489 or the distance covered by the user since the last reboot while
1490 activated. Units after application of scale are meters.
1491
1492What: /sys/bus/iio/devices/iio:deviceX/store_eeprom
1493KernelVersion: 3.4.0
1494Contact: linux-iio@vger.kernel.org
1495Description:
1496 Writing '1' stores the current device configuration into
1497 on-chip EEPROM. After power-up or chip reset the device will
1498 automatically load the saved configuration.
1499
1500What: /sys/.../iio:deviceX/in_proximity_raw
1501What: /sys/.../iio:deviceX/in_proximity_input
1502What: /sys/.../iio:deviceX/in_proximityY_raw
1503KernelVersion: 3.4
1504Contact: linux-iio@vger.kernel.org
1505Description:
1506 Proximity measurement indicating that some
1507 object is near the sensor, usually by observing
1508 reflectivity of infrared or ultrasound emitted.
1509
1510 Often these sensors are unit less and as such conversion
1511 to SI units is not possible. Higher proximity measurements
1512 indicate closer objects, and vice versa. Units after
1513 application of scale and offset are meters.
1514
1515What: /sys/.../iio:deviceX/in_illuminance_input
1516What: /sys/.../iio:deviceX/in_illuminance_raw
1517What: /sys/.../iio:deviceX/in_illuminanceY_input
1518What: /sys/.../iio:deviceX/in_illuminanceY_raw
1519What: /sys/.../iio:deviceX/in_illuminanceY_mean_raw
1520What: /sys/.../iio:deviceX/in_illuminance_ir_raw
1521What: /sys/.../iio:deviceX/in_illuminance_clear_raw
1522KernelVersion: 3.4
1523Contact: linux-iio@vger.kernel.org
1524Description:
1525 Illuminance measurement, units after application of scale
1526 and offset are lux.
1527
1528What: /sys/.../iio:deviceX/in_intensityY_raw
1529What: /sys/.../iio:deviceX/in_intensityY_ir_raw
1530What: /sys/.../iio:deviceX/in_intensityY_both_raw
1531What: /sys/.../iio:deviceX/in_intensityY_uv_raw
1532What: /sys/.../iio:deviceX/in_intensityY_duv_raw
1533KernelVersion: 3.4
1534Contact: linux-iio@vger.kernel.org
1535Description:
1536 Unit-less light intensity. Modifiers both and ir indicate
1537 that measurements contain visible and infrared light
1538 components or just infrared light, respectively. Modifier
1539 uv indicates that measurements contain ultraviolet light
1540 components. Modifier duv indicates that measurements
1541 contain deep ultraviolet light components.
1542
1543What: /sys/.../iio:deviceX/in_uvindex_input
1544KernelVersion: 4.6
1545Contact: linux-iio@vger.kernel.org
1546Description:
1547 UV light intensity index measuring the human skin's response to
1548 different wavelength of sunlight weighted according to the
1549 standardised CIE Erythemal Action Spectrum. UV index values range
1550 from 0 (low) to >=11 (extreme).
1551
1552What: /sys/.../iio:deviceX/in_intensity_integration_time
1553What: /sys/.../iio:deviceX/in_intensity_red_integration_time
1554What: /sys/.../iio:deviceX/in_intensity_green_integration_time
1555What: /sys/.../iio:deviceX/in_intensity_blue_integration_time
1556What: /sys/.../iio:deviceX/in_intensity_clear_integration_time
1557What: /sys/.../iio:deviceX/in_illuminance_integration_time
1558KernelVersion: 3.12
1559Contact: linux-iio@vger.kernel.org
1560Description:
1561 This attribute is used to get/set the integration time in
1562 seconds. If shared across all channels of a given type,
1563 <type>_integration_time is used.
1564
1565What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_integration_time
1566KernelVersion: 4.0
1567Contact: linux-iio@vger.kernel.org
1568Description:
1569 Number of seconds in which to compute speed.
1570
1571What: /sys/bus/iio/devices/iio:deviceX/in_rot_quaternion_raw
1572KernelVersion: 3.15
1573Contact: linux-iio@vger.kernel.org
1574Description:
1575 Raw value of quaternion components using a format
1576 x y z w. Here x, y, and z component represents the axis about
1577 which a rotation will occur and w component represents the
1578 amount of rotation.
1579
1580What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_raw
1581What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_raw
1582What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_raw
1583What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_raw
1584KernelVersion: 3.15
1585Contact: linux-iio@vger.kernel.org
1586Description:
1587 Raw value of rotation from true/magnetic north measured with
1588 or without compensation from tilt sensors.
1589
1590What: /sys/bus/iio/devices/iio:deviceX/in_currentX_raw
1591What: /sys/bus/iio/devices/iio:deviceX/in_currentX_i_raw
1592What: /sys/bus/iio/devices/iio:deviceX/in_currentX_q_raw
1593KernelVersion: 3.18
1594Contact: linux-iio@vger.kernel.org
1595Description:
1596 Raw current measurement from channel X. Units are in milliamps
1597 after application of scale and offset. If no offset or scale is
1598 present, output should be considered as processed with the
1599 unit in milliamps.
1600
1601 Channels with 'i' and 'q' modifiers always exist in pairs and both
1602 channels refer to the same signal. The 'i' channel contains the in-phase
1603 component of the signal while the 'q' channel contains the quadrature
1604 component.
1605
1606What: /sys/.../iio:deviceX/in_energy_en
1607What: /sys/.../iio:deviceX/in_distance_en
1608What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_en
1609What: /sys/.../iio:deviceX/in_steps_en
1610KernelVersion: 3.19
1611Contact: linux-iio@vger.kernel.org
1612Description:
1613 Activates a device feature that runs in firmware/hardware.
1614 E.g. for steps: the pedometer saves power while not used;
1615 when activated, it will count the steps taken by the user in
1616 firmware and export them through in_steps_input.
1617
1618What: /sys/.../iio:deviceX/in_steps_input
1619KernelVersion: 3.19
1620Contact: linux-iio@vger.kernel.org
1621Description:
1622 This attribute is used to read the number of steps taken by the user
1623 since the last reboot while activated.
1624
1625What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_input
1626What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_raw
1627KernelVersion: 3.19
1628Contact: linux-iio@vger.kernel.org
1629Description:
1630 This attribute is used to read the current speed value of the
1631 user (which is the norm or magnitude of the velocity vector).
1632 Units after application of scale are m/s.
1633
1634What: /sys/.../iio:deviceX/in_steps_debounce_count
1635KernelVersion: 4.0
1636Contact: linux-iio@vger.kernel.org
1637Description:
1638 Specifies the number of steps that must occur within
1639 in_steps_filter_debounce_time for the pedometer to decide the
1640 consumer is making steps.
1641
1642What: /sys/.../iio:deviceX/in_steps_debounce_time
1643KernelVersion: 4.0
1644Contact: linux-iio@vger.kernel.org
1645Description:
1646 Specifies number of seconds in which we compute the steps
1647 that occur in order to decide if the consumer is making steps.
1648
1649What: /sys/bus/iio/devices/iio:deviceX/bufferY/watermark
1650KernelVersion: 5.11
1651Contact: linux-iio@vger.kernel.org
1652Description:
1653 A single positive integer specifying the maximum number of scan
1654 elements to wait for.
1655
1656 Poll will block until the watermark is reached.
1657
1658 Blocking read will wait until the minimum between the requested
1659 read amount or the low water mark is available.
1660
1661 Non-blocking read will retrieve the available samples from the
1662 buffer even if there are less samples then watermark level. This
1663 allows the application to block on poll with a timeout and read
1664 the available samples after the timeout expires and thus have a
1665 maximum delay guarantee.
1666
1667What: /sys/bus/iio/devices/iio:deviceX/bufferY/data_available
1668KernelVersion: 5.11
1669Contact: linux-iio@vger.kernel.org
1670Description:
1671 A read-only value indicating the bytes of data available in the
1672 buffer. In the case of an output buffer, this indicates the
1673 amount of empty space available to write data to. In the case of
1674 an input buffer, this indicates the amount of data available for
1675 reading.
1676
1677What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_enabled
1678KernelVersion: 4.2
1679Contact: linux-iio@vger.kernel.org
1680Description:
1681 A read-only boolean value that indicates if the hardware fifo is
1682 currently enabled or disabled. If the device does not have a
1683 hardware fifo this entry is not present.
1684 The hardware fifo is enabled when the buffer is enabled if the
1685 current hardware fifo watermark level is set and other current
1686 device settings allows it (e.g. if a trigger is set that samples
1687 data differently that the hardware fifo does then hardware fifo
1688 will not enabled).
1689
1690 If the hardware fifo is enabled and the level of the hardware
1691 fifo reaches the hardware fifo watermark level the device will
1692 flush its hardware fifo to the device buffer. Doing a non
1693 blocking read on the device when no samples are present in the
1694 device buffer will also force a flush.
1695
1696 When the hardware fifo is enabled there is no need to use a
1697 trigger to use buffer mode since the watermark settings
1698 guarantees that the hardware fifo is flushed to the device
1699 buffer.
1700
1701What: /sys/bus/iio/devices/iio:device*/buffer/hwfifo_timeout
1702KernelVersion: 4.12
1703Contact: linux-iio@vger.kernel.org
1704Description:
1705 A read/write property to provide capability to delay reporting of
1706 samples till a timeout is reached. This allows host processors to
1707 sleep, while the sensor is storing samples in its internal fifo.
1708 The maximum timeout in seconds can be specified by setting
1709 hwfifo_timeout.The current delay can be read by reading
1710 hwfifo_timeout. A value of 0 means that there is no timeout.
1711
1712What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark
1713KernelVersion: 4.2
1714Contact: linux-iio@vger.kernel.org
1715Description:
1716 Read-only entry that contains a single integer specifying the
1717 current watermark level for the hardware fifo. If the device
1718 does not have a hardware fifo this entry is not present.
1719 The watermark level for the hardware fifo is set by the driver
1720 based on the value set by the user in buffer/watermark but
1721 taking into account hardware limitations (e.g. most hardware
1722 buffers are limited to 32-64 samples, some hardware buffers
1723 watermarks are fixed or have minimum levels). A value of 0
1724 means that the hardware watermark is unset.
1725
1726What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_min
1727KernelVersion: 4.2
1728Contact: linux-iio@vger.kernel.org
1729Description:
1730 A single positive integer specifying the minimum watermark level
1731 for the hardware fifo of this device. If the device does not
1732 have a hardware fifo this entry is not present.
1733
1734 If the user sets buffer/watermark to a value less than this one,
1735 then the hardware watermark will remain unset.
1736
1737What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_max
1738KernelVersion: 4.2
1739Contact: linux-iio@vger.kernel.org
1740Description:
1741 A single positive integer specifying the maximum watermark level
1742 for the hardware fifo of this device. If the device does not
1743 have a hardware fifo this entry is not present.
1744
1745 If the user sets buffer/watermark to a value greater than this
1746 one, then the hardware watermark will be capped at this value.
1747
1748What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_available
1749KernelVersion: 4.2
1750Contact: linux-iio@vger.kernel.org
1751Description:
1752 A list of positive integers specifying the available watermark
1753 levels for the hardware fifo. This entry is optional and if it
1754 is not present it means that all the values between
1755 hwfifo_watermark_min and hwfifo_watermark_max are supported.
1756
1757 If the user sets buffer/watermark to a value greater than
1758 hwfifo_watermak_min but not equal to any of the values in this
1759 list, the driver will chose an appropriate value for the
1760 hardware fifo watermark level.
1761
1762What: /sys/bus/iio/devices/iio:deviceX/in_temp_calibemissivity
1763What: /sys/bus/iio/devices/iio:deviceX/in_tempX_calibemissivity
1764What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_calibemissivity
1765What: /sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibemissivity
1766KernelVersion: 4.1
1767Contact: linux-iio@vger.kernel.org
1768Description:
1769 The emissivity ratio of the surface in the field of view of the
1770 contactless temperature sensor. Emissivity varies from 0 to 1,
1771 with 1 being the emissivity of a black body.
1772
1773What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_oversampling_ratio
1774What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_oversampling_ratio
1775What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_oversampling_ratio
1776KernelVersion: 4.2
1777Contact: linux-iio@vger.kernel.org
1778Description:
1779 Hardware applied number of measurements for acquiring one
1780 data point. The HW will do <type>[_name]_oversampling_ratio
1781 measurements and return the average value as output data. Each
1782 value resulted from <type>[_name]_oversampling_ratio measurements
1783 is considered as one sample for <type>[_name]_sampling_frequency.
1784
1785What: /sys/bus/iio/devices/iio:deviceX/in_concentration_raw
1786What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_raw
1787What: /sys/bus/iio/devices/iio:deviceX/in_concentration_co2_raw
1788What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_co2_raw
1789What: /sys/bus/iio/devices/iio:deviceX/in_concentration_ethanol_raw
1790What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_ethanol_raw
1791What: /sys/bus/iio/devices/iio:deviceX/in_concentration_h2_raw
1792What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_h2_raw
1793What: /sys/bus/iio/devices/iio:deviceX/in_concentration_o2_raw
1794What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_o2_raw
1795What: /sys/bus/iio/devices/iio:deviceX/in_concentration_voc_raw
1796What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw
1797KernelVersion: 4.3
1798Contact: linux-iio@vger.kernel.org
1799Description:
1800 Raw (unscaled no offset etc.) reading of a substance. Units
1801 after application of scale and offset are percents.
1802
1803What: /sys/bus/iio/devices/iio:deviceX/in_resistance_raw
1804What: /sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw
1805What: /sys/bus/iio/devices/iio:deviceX/out_resistance_raw
1806What: /sys/bus/iio/devices/iio:deviceX/out_resistanceX_raw
1807KernelVersion: 4.3
1808Contact: linux-iio@vger.kernel.org
1809Description:
1810 Raw (unscaled no offset etc.) resistance reading that can be processed
1811 into an ohm value.
1812
1813What: /sys/bus/iio/devices/iio:deviceX/heater_enable
1814KernelVersion: 4.1.0
1815Contact: linux-iio@vger.kernel.org
1816Description:
1817 '1' (enable) or '0' (disable) specifying the enable
1818 of heater function. Same reading values apply.
1819
1820 This ABI is especially applicable for humidity sensors
1821 to heatup the device and get rid of any condensation
1822 in some humidity environment
1823
1824What: /sys/bus/iio/devices/iio:deviceX/in_ph_raw
1825KernelVersion: 4.5
1826Contact: linux-iio@vger.kernel.org
1827Description:
1828 Raw (unscaled no offset etc.) pH reading of a substance as a negative
1829 base-10 logarithm of hydrodium ions in a litre of water.
1830
1831What: /sys/bus/iio/devices/iio:deviceX/mount_matrix
1832What: /sys/bus/iio/devices/iio:deviceX/in_mount_matrix
1833What: /sys/bus/iio/devices/iio:deviceX/out_mount_matrix
1834What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_mount_matrix
1835What: /sys/bus/iio/devices/iio:deviceX/in_accel_mount_matrix
1836KernelVersion: 4.6
1837Contact: linux-iio@vger.kernel.org
1838Description:
1839 Mounting matrix for IIO sensors. This is a rotation matrix which
1840 informs userspace about sensor chip's placement relative to the
1841 main hardware it is mounted on.
1842
1843 Main hardware placement is defined according to the local
1844 reference frame related to the physical quantity the sensor
1845 measures.
1846
1847 Given that the rotation matrix is defined in a board specific
1848 way (platform data and / or device-tree), the main hardware
1849 reference frame definition is left to the implementor's choice
1850 (see below for a magnetometer example).
1851
1852 Applications should apply this rotation matrix to samples so
1853 that when main hardware reference frame is aligned onto local
1854 reference frame, then sensor chip reference frame is also
1855 perfectly aligned with it.
1856
1857 Matrix is a 3x3 unitary matrix and typically looks like
1858 [0, 1, 0; 1, 0, 0; 0, 0, -1]. Identity matrix
1859 [1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and main hardware
1860 are perfectly aligned with each other.
1861
1862 For example, a mounting matrix for a magnetometer sensor informs
1863 userspace about sensor chip's ORIENTATION relative to the main
1864 hardware.
1865
1866 More specifically, main hardware orientation is defined with
1867 respect to the LOCAL EARTH GEOMAGNETIC REFERENCE FRAME where :
1868
1869 * Y is in the ground plane and positive towards magnetic North ;
1870 * X is in the ground plane, perpendicular to the North axis and
1871 positive towards the East ;
1872 * Z is perpendicular to the ground plane and positive upwards.
1873
1874 An implementor might consider that for a hand-held device, a
1875 'natural' orientation would be 'front facing camera at the top'.
1876 The main hardware reference frame could then be described as :
1877
1878 * Y is in the plane of the screen and is positive towards the
1879 top of the screen ;
1880 * X is in the plane of the screen, perpendicular to Y axis, and
1881 positive towards the right hand side of the screen ;
1882 * Z is perpendicular to the screen plane and positive out of the
1883 screen.
1884
1885 Another example for a quadrotor UAV might be :
1886
1887 * Y is in the plane of the propellers and positive towards the
1888 front-view camera;
1889 * X is in the plane of the propellers, perpendicular to Y axis,
1890 and positive towards the starboard side of the UAV ;
1891 * Z is perpendicular to propellers plane and positive upwards.
1892
1893What: /sys/bus/iio/devices/iio:deviceX/in_electricalconductivity_raw
1894KernelVersion: 4.8
1895Contact: linux-iio@vger.kernel.org
1896Description:
1897 Raw (unscaled no offset etc.) electric conductivity reading that
1898 can be processed to siemens per meter.
1899
1900What: /sys/bus/iio/devices/iio:deviceX/in_countY_raw
1901KernelVersion: 4.10
1902Contact: linux-iio@vger.kernel.org
1903Description:
1904 This interface is deprecated; please use the Counter subsystem.
1905
1906 Raw counter device counts from channel Y. For quadrature
1907 counters, multiplication by an available [Y]_scale results in
1908 the counts of a single quadrature signal phase from channel Y.
1909
1910What: /sys/bus/iio/devices/iio:deviceX/in_indexY_raw
1911KernelVersion: 4.10
1912Contact: linux-iio@vger.kernel.org
1913Description:
1914 This interface is deprecated; please use the Counter subsystem.
1915
1916 Raw counter device index value from channel Y. This attribute
1917 provides an absolute positional reference (e.g. a pulse once per
1918 revolution) which may be used to home positional systems as
1919 required.
1920
1921What: /sys/bus/iio/devices/iio:deviceX/in_count_count_direction_available
1922KernelVersion: 4.12
1923Contact: linux-iio@vger.kernel.org
1924Description:
1925 This interface is deprecated; please use the Counter subsystem.
1926
1927 A list of possible counting directions which are:
1928
1929 - "up" : counter device is increasing.
1930 - "down": counter device is decreasing.
1931
1932What: /sys/bus/iio/devices/iio:deviceX/in_countY_count_direction
1933KernelVersion: 4.12
1934Contact: linux-iio@vger.kernel.org
1935Description:
1936 This interface is deprecated; please use the Counter subsystem.
1937
1938 Raw counter device counters direction for channel Y.
1939
1940What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_label
1941What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_label
1942KernelVersion: 5.8
1943Contact: linux-iio@vger.kernel.org
1944Description:
1945 Optional symbolic label to a device channel.
1946 If a label is defined for this channel add that to the channel
1947 specific attributes. This is useful for userspace to be able to
1948 better identify an individual channel.
1949
1950What: /sys/bus/iio/devices/iio:deviceX/in_phaseY_raw
1951KernelVersion: 4.18
1952Contact: linux-iio@vger.kernel.org
1953Description:
1954 Raw (unscaled) phase difference reading from channel Y
1955 that can be processed to radians.
1956
1957What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm1_input
1958What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm1_input
1959What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm2p5_input
1960What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm2p5_input
1961What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm4_input
1962What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm4_input
1963What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm10_input
1964What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm10_input
1965KernelVersion: 4.22
1966Contact: linux-iio@vger.kernel.org
1967Description:
1968 Mass concentration reading of particulate matter in ug / m3.
1969 pmX consists of particles with aerodynamic diameter less or
1970 equal to X micrometers.
1971
1972What: /sys/bus/iio/devices/iio:deviceX/events/in_illuminance_period_available
1973Date: November 2019
1974KernelVersion: 5.4
1975Contact: linux-iio@vger.kernel.org
1976Description:
1977 List of valid periods (in seconds) for which the light intensity
1978 must be above the threshold level before interrupt is asserted.
1979
1980What: /sys/bus/iio/devices/iio:deviceX/in_filter_notch_center_frequency
1981KernelVersion: 5.5
1982Contact: linux-iio@vger.kernel.org
1983Description:
1984 Center frequency in Hz for a notch filter. Used i.e. for line
1985 noise suppression.
1986
1987What: /sys/bus/iio/devices/iio:deviceX/in_temp_thermocouple_type
1988KernelVersion: 5.5
1989Contact: linux-iio@vger.kernel.org
1990Description:
1991 One of the following thermocouple types: B, E, J, K, N, R, S, T.
1992
1993What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_calibambient
1994What: /sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibambient
1995KernelVersion: 5.10
1996Contact: linux-iio@vger.kernel.org
1997Description:
1998 Calibrated ambient temperature for object temperature
1999 calculation in milli degrees Celsius.
2000
2001What: /sys/bus/iio/devices/iio:deviceX/in_intensity_x_raw
2002What: /sys/bus/iio/devices/iio:deviceX/in_intensity_y_raw
2003What: /sys/bus/iio/devices/iio:deviceX/in_intensity_z_raw
2004KernelVersion: 5.10
2005Contact: linux-iio@vger.kernel.org
2006Description:
2007 Unscaled light intensity according to CIE 1931/DIN 5033 color space.
2008 Units after application of scale are nano nanowatts per square meter.
2009
2010What: /sys/bus/iio/devices/iio:deviceX/in_anglY_label
2011KernelVersion: 5.12
2012Contact: linux-iio@vger.kernel.org
2013Description:
2014 Optional symbolic label for channel Y.
2015 For Intel hid hinge sensor, the label values are:
2016 hinge, keyboard, screen. It means the three channels
2017 each correspond respectively to hinge angle, keyboard angle,
2018 and screen angle.
2019
2020What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_hysteresis_relative
2021What: /sys/bus/iio/devices/iio:deviceX/in_intensity_hysteresis_relative
2022KernelVersion: 5.12
2023Contact: linux-iio@vger.kernel.org
2024Description:
2025 Specify the percent for light sensor relative to the channel
2026 absolute value that a data field should change before an event
2027 is generated. Units are a percentage of the prior reading.
2028
2029What: /sys/bus/iio/devices/iio:deviceX/calibration_auto_enable
2030Date: June 2020
2031KernelVersion: 5.8
2032Contact: linux-iio@vger.kernel.org
2033Description:
2034 Some sensors have the ability to apply auto calibration at
2035 runtime. For example, it may be necessary to compensate for
2036 contaminant build-up in a measurement chamber or optical
2037 element deterioration that would otherwise lead to sensor drift.
2038
2039 Writing 1 or 0 to this attribute will respectively activate or
2040 deactivate this auto calibration function.
2041
2042 Upon reading, the current status is returned.
2043
2044What: /sys/bus/iio/devices/iio:deviceX/calibration_forced_value
2045Date: June 2020
2046KernelVersion: 5.8
2047Contact: linux-iio@vger.kernel.org
2048Description:
2049 Some sensors have the ability to apply a manual calibration using
2050 a known measurement value, perhaps obtained from an external
2051 reference device.
2052
2053 Writing a value to this function will force such a calibration
2054 change. For the scd30 the value should be from the range
2055 [400 1 2000].
2056
2057 Note for the scd30 that a valid value may only be obtained once
2058 it is has been written. Until then any read back of this value
2059 should be ignored. As for the scd4x an error will be returned
2060 immediately if the manual calibration has failed.
2061
2062What: /sys/bus/iio/devices/iio:deviceX/calibration_forced_value_available
2063KernelVersion: 5.15
2064Contact: linux-iio@vger.kernel.org
2065Description:
2066 Available range for the forced calibration value, expressed as:
2067
2068 - a range specified as "[min step max]"
2069
2070What: /sys/bus/iio/devices/iio:deviceX/in_voltageX_sampling_frequency
2071What: /sys/bus/iio/devices/iio:deviceX/in_powerY_sampling_frequency
2072What: /sys/bus/iio/devices/iio:deviceX/in_currentZ_sampling_frequency
2073KernelVersion: 5.20
2074Contact: linux-iio@vger.kernel.org
2075Description:
2076 Some devices have separate controls of sampling frequency for
2077 individual channels. If multiple channels are enabled in a scan,
2078 then the sampling_frequency of the scan may be computed from the
2079 per channel sampling frequencies.
2080
2081What: /sys/.../events/in_accel_gesture_singletap_en
2082What: /sys/.../events/in_accel_gesture_doubletap_en
2083KernelVersion: 6.1
2084Contact: linux-iio@vger.kernel.org
2085Description:
2086 Device generates an event on a single or double tap.
2087
2088What: /sys/.../events/in_accel_gesture_singletap_value
2089What: /sys/.../events/in_accel_gesture_doubletap_value
2090KernelVersion: 6.1
2091Contact: linux-iio@vger.kernel.org
2092Description:
2093 Specifies the threshold value that the device is comparing
2094 against to generate the tap gesture event. The lower
2095 threshold value increases the sensitivity of tap detection.
2096 Units and the exact meaning of value are device-specific.
2097
2098What: /sys/.../events/in_accel_gesture_tap_value_available
2099KernelVersion: 6.1
2100Contact: linux-iio@vger.kernel.org
2101Description:
2102 Lists all available threshold values which can be used to
2103 modify the sensitivity of the tap detection.
2104
2105What: /sys/.../events/in_accel_gesture_singletap_reset_timeout
2106What: /sys/.../events/in_accel_gesture_doubletap_reset_timeout
2107KernelVersion: 6.1
2108Contact: linux-iio@vger.kernel.org
2109Description:
2110 Specifies the timeout value in seconds for the tap detector
2111 to not to look for another tap event after the event as
2112 occurred. Basically the minimum quiet time between the two
2113 single-tap's or two double-tap's.
2114
2115What: /sys/.../events/in_accel_gesture_tap_reset_timeout_available
2116KernelVersion: 6.1
2117Contact: linux-iio@vger.kernel.org
2118Description:
2119 Lists all available tap reset timeout values. Units in seconds.
2120
2121What: /sys/.../events/in_accel_gesture_doubletap_tap2_min_delay
2122KernelVersion: 6.1
2123Contact: linux-iio@vger.kernel.org
2124Description:
2125 Specifies the minimum quiet time in seconds between the two
2126 taps of a double tap.
2127
2128What: /sys/.../events/in_accel_gesture_doubletap_tap2_min_delay_available
2129KernelVersion: 6.1
2130Contact: linux-iio@vger.kernel.org
2131Description:
2132 Lists all available delay values between two taps in the double
2133 tap. Units in seconds.
2134
2135What: /sys/.../events/in_accel_gesture_tap_maxtomin_time
2136KernelVersion: 6.1
2137Contact: linux-iio@vger.kernel.org
2138Description:
2139 Specifies the maximum time difference allowed between upper
2140 and lower peak of tap to consider it as the valid tap event.
2141 Units in seconds.
2142
2143What: /sys/.../events/in_accel_gesture_tap_maxtomin_time_available
2144KernelVersion: 6.1
2145Contact: linux-iio@vger.kernel.org
2146Description:
2147 Lists all available time values between upper peak to lower
2148 peak. Units in seconds.
2149
2150What: /sys/bus/iio/devices/iio:deviceX/in_rot_yaw_raw
2151What: /sys/bus/iio/devices/iio:deviceX/in_rot_pitch_raw
2152What: /sys/bus/iio/devices/iio:deviceX/in_rot_roll_raw
2153KernelVersion: 6.1
2154Contact: linux-iio@vger.kernel.org
2155Description:
2156 Raw (unscaled) euler angles readings. Units after
2157 application of scale are deg.
2158
2159What: /sys/bus/iio/devices/iio:deviceX/serialnumber
2160KernelVersion: 6.1
2161Contact: linux-iio@vger.kernel.org
2162Description:
2163 An example format is 16-bytes, 2-digits-per-byte, HEX-string
2164 representing the sensor unique ID number.
1What: /sys/bus/iio/devices/iio:deviceX
2KernelVersion: 2.6.35
3Contact: linux-iio@vger.kernel.org
4Description:
5 Hardware chip or device accessed by one communication port.
6 Corresponds to a grouping of sensor channels. X is the IIO
7 index of the device.
8
9What: /sys/bus/iio/devices/triggerX
10KernelVersion: 2.6.35
11Contact: linux-iio@vger.kernel.org
12Description:
13 An event driven driver of data capture to an in kernel buffer.
14 May be provided by a device driver that also has an IIO device
15 based on hardware generated events (e.g. data ready) or
16 provided by a separate driver for other hardware (e.g.
17 periodic timer, GPIO or high resolution timer).
18 Contains trigger type specific elements. These do not
19 generalize well and hence are not documented in this file.
20 X is the IIO index of the trigger.
21
22What: /sys/bus/iio/devices/iio:deviceX/buffer
23KernelVersion: 2.6.35
24Contact: linux-iio@vger.kernel.org
25Description:
26 Directory of attributes relating to the buffer for the device.
27
28What: /sys/bus/iio/devices/iio:deviceX/name
29KernelVersion: 2.6.35
30Contact: linux-iio@vger.kernel.org
31Description:
32 Description of the physical chip / device for device X.
33 Typically a part number.
34
35What: /sys/bus/iio/devices/iio:deviceX/current_timestamp_clock
36KernelVersion: 4.5
37Contact: linux-iio@vger.kernel.org
38Description:
39 String identifying current posix clock used to timestamp
40 buffered samples and events for device X.
41
42What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency
43What: /sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency
44What: /sys/bus/iio/devices/triggerX/sampling_frequency
45KernelVersion: 2.6.35
46Contact: linux-iio@vger.kernel.org
47Description:
48 Some devices have internal clocks. This parameter sets the
49 resulting sampling frequency. In many devices this
50 parameter has an effect on input filters etc. rather than
51 simply controlling when the input is sampled. As this
52 effects data ready triggers, hardware buffers and the sysfs
53 direct access interfaces, it may be found in any of the
54 relevant directories. If it effects all of the above
55 then it is to be found in the base device directory.
56
57What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available
58What: /sys/bus/iio/devices/iio:deviceX/in_proximity_sampling_frequency_available
59What: /sys/.../iio:deviceX/buffer/sampling_frequency_available
60What: /sys/bus/iio/devices/triggerX/sampling_frequency_available
61KernelVersion: 2.6.35
62Contact: linux-iio@vger.kernel.org
63Description:
64 When the internal sampling clock can only take a specific set of
65 frequencies, we can specify the available values with:
66 - a small discrete set of values like "0 2 4 6 8"
67 - a range with minimum, step and maximum frequencies like
68 "[min step max]"
69
70What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio
71KernelVersion: 2.6.38
72Contact: linux-iio@vger.kernel.org
73Description:
74 Hardware dependent ADC oversampling. Controls the sampling ratio
75 of the digital filter if available.
76
77What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available
78KernelVersion: 2.6.38
79Contact: linux-iio@vger.kernel.org
80Description:
81 Hardware dependent values supported by the oversampling filter.
82
83What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_raw
84What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw
85What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_raw
86What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_raw
87KernelVersion: 2.6.35
88Contact: linux-iio@vger.kernel.org
89Description:
90 Raw (unscaled no bias removal etc.) voltage measurement from
91 channel Y. In special cases where the channel does not
92 correspond to externally available input one of the named
93 versions may be used. The number must always be specified and
94 unique to allow association with event codes. Units after
95 application of scale and offset are millivolts.
96
97 Channels with 'i' and 'q' modifiers always exist in pairs and both
98 channels refer to the same signal. The 'i' channel contains the in-phase
99 component of the signal while the 'q' channel contains the quadrature
100 component.
101
102What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw
103KernelVersion: 2.6.35
104Contact: linux-iio@vger.kernel.org
105Description:
106 Raw (unscaled) differential voltage measurement equivalent to
107 channel Y - channel Z where these channel numbers apply to the
108 physically equivalent inputs when non differential readings are
109 separately available. In differential only parts, then all that
110 is required is a consistent labeling. Units after application
111 of scale and offset are millivolts.
112
113What: /sys/bus/iio/devices/iio:deviceX/in_currentY_raw
114What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_raw
115KernelVersion: 3.17
116Contact: linux-iio@vger.kernel.org
117Description:
118 Raw (unscaled no bias removal etc.) current measurement from
119 channel Y. In special cases where the channel does not
120 correspond to externally available input one of the named
121 versions may be used. The number must always be specified and
122 unique to allow association with event codes. Units after
123 application of scale and offset are milliamps.
124
125What: /sys/bus/iio/devices/iio:deviceX/in_powerY_raw
126KernelVersion: 4.5
127Contact: linux-iio@vger.kernel.org
128Description:
129 Raw (unscaled no bias removal etc.) power measurement from
130 channel Y. The number must always be specified and
131 unique to allow association with event codes. Units after
132 application of scale and offset are milliwatts.
133
134What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
135KernelVersion: 3.2
136Contact: linux-iio@vger.kernel.org
137Description:
138 Raw capacitance measurement from channel Y. Units after
139 application of scale and offset are nanofarads.
140
141What: /sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw
142KernelVersion: 3.2
143Contact: linux-iio@vger.kernel.org
144Description:
145 Raw differential capacitance measurement equivalent to
146 channel Y - channel Z where these channel numbers apply to the
147 physically equivalent inputs when non differential readings are
148 separately available. In differential only parts, then all that
149 is required is a consistent labeling. Units after application
150 of scale and offset are nanofarads.
151
152What: /sys/bus/iio/devices/iio:deviceX/in_temp_raw
153What: /sys/bus/iio/devices/iio:deviceX/in_tempX_raw
154What: /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
155What: /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw
156What: /sys/bus/iio/devices/iio:deviceX/in_temp_ambient_raw
157What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_raw
158KernelVersion: 2.6.35
159Contact: linux-iio@vger.kernel.org
160Description:
161 Raw (unscaled no bias removal etc.) temperature measurement.
162 If an axis is specified it generally means that the temperature
163 sensor is associated with one part of a compound device (e.g.
164 a gyroscope axis). The ambient and object modifiers distinguish
165 between ambient (reference) and distant temperature for contact-
166 less measurements. Units after application of scale and offset
167 are milli degrees Celsius.
168
169What: /sys/bus/iio/devices/iio:deviceX/in_tempX_input
170KernelVersion: 2.6.38
171Contact: linux-iio@vger.kernel.org
172Description:
173 Scaled temperature measurement in milli degrees Celsius.
174
175What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw
176What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw
177What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw
178KernelVersion: 2.6.35
179Contact: linux-iio@vger.kernel.org
180Description:
181 Acceleration in direction x, y or z (may be arbitrarily assigned
182 but should match other such assignments on device).
183 Has all of the equivalent parameters as per voltageY. Units
184 after application of scale and offset are m/s^2.
185
186What: /sys/bus/iio/devices/iio:deviceX/in_gravity_x_raw
187What: /sys/bus/iio/devices/iio:deviceX/in_gravity_y_raw
188What: /sys/bus/iio/devices/iio:deviceX/in_gravity_z_raw
189KernelVersion: 4.11
190Contact: linux-iio@vger.kernel.org
191Description:
192 Gravity in direction x, y or z (may be arbitrarily assigned
193 but should match other such assignments on device).
194 Units after application of scale and offset are m/s^2.
195
196What: /sys/bus/iio/devices/iio:deviceX/in_angl_raw
197KernelVersion: 4.17
198Contact: linux-iio@vger.kernel.org
199Description:
200 Angle of rotation. Units after application of scale and offset
201 are radians.
202
203What: /sys/bus/iio/devices/iio:deviceX/in_positionrelative_x_raw
204What: /sys/bus/iio/devices/iio:deviceX/in_positionrelative_y_raw
205KernelVersion: 4.19
206Contact: linux-iio@vger.kernel.org
207Description:
208 Relative position in direction x or y on a pad (may be
209 arbitrarily assigned but should match other such assignments on
210 device).
211 Units after application of scale and offset are milli percents
212 from the pad's size in both directions. Should be calibrated by
213 the consumer.
214
215What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
216What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
217What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
218KernelVersion: 2.6.35
219Contact: linux-iio@vger.kernel.org
220Description:
221 Angular velocity about axis x, y or z (may be arbitrarily
222 assigned). Has all the equivalent parameters as per voltageY.
223 Units after application of scale and offset are radians per
224 second.
225
226What: /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw
227What: /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw
228What: /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw
229KernelVersion: 2.6.35
230Contact: linux-iio@vger.kernel.org
231Description:
232 Inclination raw reading about axis x, y or z (may be
233 arbitrarily assigned). Data converted by application of offset
234 and scale to degrees.
235
236What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw
237What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw
238What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw
239KernelVersion: 2.6.35
240Contact: linux-iio@vger.kernel.org
241Description:
242 Magnetic field along axis x, y or z (may be arbitrarily
243 assigned). Data converted by application of offset
244 then scale to Gauss.
245
246What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
247What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
248What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
249KernelVersion: 2.6.36
250Contact: linux-iio@vger.kernel.org
251Description:
252 Highest value since some reset condition. These
253 attributes allow access to this and are otherwise
254 the direct equivalent of the <type>Y[_name]_raw attributes.
255
256What: /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw
257KernelVersion: 2.6.36
258Contact: linux-iio@vger.kernel.org
259Description:
260 A computed peak value based on the sum squared magnitude of
261 the underlying value in the specified directions.
262
263What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_raw
264What: /sys/bus/iio/devices/iio:deviceX/in_pressure_raw
265KernelVersion: 3.8
266Contact: linux-iio@vger.kernel.org
267Description:
268 Raw pressure measurement from channel Y. Units after
269 application of scale and offset are kilopascal.
270
271What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_input
272What: /sys/bus/iio/devices/iio:deviceX/in_pressure_input
273KernelVersion: 3.8
274Contact: linux-iio@vger.kernel.org
275Description:
276 Scaled pressure measurement from channel Y, in kilopascal.
277
278What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw
279KernelVersion: 3.14
280Contact: linux-iio@vger.kernel.org
281Description:
282 Raw humidity measurement of air. Units after application of
283 scale and offset are milli percent.
284
285What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input
286KernelVersion: 3.14
287Contact: linux-iio@vger.kernel.org
288Description:
289 Scaled humidity measurement in milli percent.
290
291What: /sys/bus/iio/devices/iio:deviceX/in_X_mean_raw
292KernelVersion: 3.5
293Contact: linux-iio@vger.kernel.org
294Description:
295 Averaged raw measurement from channel X. The number of values
296 used for averaging is device specific. The converting rules for
297 normal raw values also applies to the averaged raw values.
298
299What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset
300What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
301What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
302What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
303What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
304What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset
305What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_offset
306What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_offset
307What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_offset
308What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_offset
309What: /sys/bus/iio/devices/iio:deviceX/in_currentY_offset
310What: /sys/bus/iio/devices/iio:deviceX/in_current_offset
311What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_offset
312What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_offset
313What: /sys/bus/iio/devices/iio:deviceX/in_current_q_offset
314What: /sys/bus/iio/devices/iio:deviceX/in_current_i_offset
315What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset
316What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset
317What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
318What: /sys/bus/iio/devices/iio:deviceX/in_pressure_offset
319What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset
320What: /sys/bus/iio/devices/iio:deviceX/in_magn_offset
321What: /sys/bus/iio/devices/iio:deviceX/in_rot_offset
322What: /sys/bus/iio/devices/iio:deviceX/in_angl_offset
323KernelVersion: 2.6.35
324Contact: linux-iio@vger.kernel.org
325Description:
326 If known for a device, offset to be added to <type>[Y]_raw prior
327 to scaling by <type>[Y]_scale in order to obtain value in the
328 <type> units as specified in <type>[Y]_raw documentation.
329 Not present if the offset is always 0 or unknown. If Y or
330 axis <x|y|z> is not present, then the offset applies to all
331 in channels of <type>.
332 May be writable if a variable offset can be applied on the
333 device. Note that this is different to calibbias which
334 is for devices (or drivers) that apply offsets to compensate
335 for variation between different instances of the part, typically
336 adjusted by using some hardware supported calibration procedure.
337 Calibbias is applied internally, offset is applied in userspace
338 to the _raw output.
339
340What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
341What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_scale
342What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_scale
343What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
344What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale
345What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_scale
346What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_scale
347What: /sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_scale
348What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
349What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
350What: /sys/bus/iio/devices/iio:deviceX/in_currentY_scale
351What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_scale
352What: /sys/bus/iio/devices/iio:deviceX/in_current_scale
353What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_scale
354What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_scale
355What: /sys/bus/iio/devices/iio:deviceX/in_current_i_scale
356What: /sys/bus/iio/devices/iio:deviceX/in_current_q_scale
357What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale
358What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
359What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
360What: /sys/bus/iio/devices/iio:deviceX/in_energy_scale
361What: /sys/bus/iio/devices/iio:deviceX/in_distance_scale
362What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale
363What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
364What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
365What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
366What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_scale
367What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_scale
368What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_scale
369What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale
370What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale
371What: /sys/bus/iio/devices/iio:deviceX/in_pressure_scale
372What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
373What: /sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
374What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
375What: /sys/bus/iio/devices/iio:deviceX/in_countY_scale
376What: /sys/bus/iio/devices/iio:deviceX/in_angl_scale
377KernelVersion: 2.6.35
378Contact: linux-iio@vger.kernel.org
379Description:
380 If known for a device, scale to be applied to <type>Y[_name]_raw
381 post addition of <type>[Y][_name]_offset in order to obtain the
382 measured value in <type> units as specified in
383 <type>[Y][_name]_raw documentation. If shared across all in
384 channels then Y and <x|y|z> are not present and the value is
385 called <type>[Y][_name]_scale. The peak modifier means this
386 value is applied to <type>Y[_name]_peak_raw values.
387
388What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
389What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
390What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
391What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
392What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
393What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
394What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
395What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
396What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
397What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias
398KernelVersion: 2.6.35
399Contact: linux-iio@vger.kernel.org
400Description:
401 Hardware applied calibration offset (assumed to fix production
402 inaccuracies).
403
404What /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
405What /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
406What /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_calibscale
407What /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_calibscale
408What /sys/bus/iio/devices/iio:deviceX/in_voltage_i_calibscale
409What /sys/bus/iio/devices/iio:deviceX/in_voltage_q_calibscale
410What /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
411What /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
412What /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
413What /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
414What /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
415What /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
416What /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
417what /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
418what /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
419What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
420What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
421What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale
422KernelVersion: 2.6.35
423Contact: linux-iio@vger.kernel.org
424Description:
425 Hardware applied calibration scale factor (assumed to fix
426 production inaccuracies). If shared across all channels,
427 <type>_calibscale is used.
428
429What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender
430What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender
431What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender
432What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender
433KernelVersion: 4.0
434Contact: linux-iio@vger.kernel.org
435Description:
436 Gender of the user (e.g.: male, female) used by some pedometers
437 to compute the stride length, distance, speed and activity
438 type.
439
440What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender_available
441What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender_available
442What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender_available
443What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender_available
444KernelVersion: 4.0
445Contact: linux-iio@vger.kernel.org
446Description:
447 Lists all available gender values (e.g.: male, female).
448
449What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibheight
450What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibheight
451What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibheight
452What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibheight
453KernelVersion: 3.19
454Contact: linux-iio@vger.kernel.org
455Description:
456 Height of the user (in meters) used by some pedometers
457 to compute the stride length, distance, speed and activity
458 type.
459
460What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibweight
461KernelVersion: 4.0
462Contact: linux-iio@vger.kernel.org
463Description:
464 Weight of the user (in kg). It is needed by some pedometers
465 to compute the calories burnt by the user.
466
467What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
468What: /sys/.../iio:deviceX/in_anglvel_scale_available
469What: /sys/.../iio:deviceX/in_magn_scale_available
470What: /sys/.../iio:deviceX/in_illuminance_scale_available
471What: /sys/.../iio:deviceX/in_intensity_scale_available
472What: /sys/.../iio:deviceX/in_proximity_scale_available
473What: /sys/.../iio:deviceX/in_voltageX_scale_available
474What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available
475What: /sys/.../iio:deviceX/out_voltageX_scale_available
476What: /sys/.../iio:deviceX/out_altvoltageX_scale_available
477What: /sys/.../iio:deviceX/in_capacitance_scale_available
478What: /sys/.../iio:deviceX/in_pressure_scale_available
479What: /sys/.../iio:deviceX/in_pressureY_scale_available
480KernelVersion: 2.6.35
481Contact: linux-iio@vger.kernel.org
482Description:
483 If a discrete set of scale values is available, they
484 are listed in this attribute.
485
486What /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
487What: /sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain
488What: /sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain
489What: /sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain
490What: /sys/bus/iio/devices/iio:deviceX/in_intensity_clear_hardwaregain
491KernelVersion: 2.6.35
492Contact: linux-iio@vger.kernel.org
493Description:
494 Hardware applied gain factor. If shared across all channels,
495 <type>_hardwaregain is used.
496
497What: /sys/.../in_accel_filter_low_pass_3db_frequency
498What: /sys/.../in_magn_filter_low_pass_3db_frequency
499What: /sys/.../in_anglvel_filter_low_pass_3db_frequency
500KernelVersion: 3.2
501Contact: linux-iio@vger.kernel.org
502Description:
503 If a known or controllable low pass filter is applied
504 to the underlying data channel, then this parameter
505 gives the 3dB frequency of the filter in Hz.
506
507What: /sys/.../in_accel_filter_high_pass_3db_frequency
508What: /sys/.../in_anglvel_filter_high_pass_3db_frequency
509What: /sys/.../in_magn_filter_high_pass_3db_frequency
510KernelVersion: 4.2
511Contact: linux-iio@vger.kernel.org
512Description:
513 If a known or controllable high pass filter is applied
514 to the underlying data channel, then this parameter
515 gives the 3dB frequency of the filter in Hz.
516
517What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
518What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
519KernelVersion: 2.6.37
520Contact: linux-iio@vger.kernel.org
521Description:
522 Raw (unscaled, no bias etc.) output voltage for
523 channel Y. The number must always be specified and
524 unique if the output corresponds to a single channel.
525 While DAC like devices typically use out_voltage,
526 a continuous frequency generating device, such as
527 a DDS or PLL should use out_altvoltage.
528
529What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
530What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
531KernelVersion: 2.6.37
532Contact: linux-iio@vger.kernel.org
533Description:
534 Raw (unscaled, no bias etc.) output voltage for an aggregate of
535 channel Y, channel Z, etc. This interface is available in cases
536 where a single output sets the value for multiple channels
537 simultaneously.
538
539What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
540What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
541What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
542What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
543KernelVersion: 2.6.38
544Contact: linux-iio@vger.kernel.org
545Description:
546 Specifies the output powerdown mode.
547 DAC output stage is disconnected from the amplifier and
548 1kohm_to_gnd: connected to ground via an 1kOhm resistor,
549 2.5kohm_to_gnd: connected to ground via a 2.5kOhm resistor,
550 6kohm_to_gnd: connected to ground via a 6kOhm resistor,
551 20kohm_to_gnd: connected to ground via a 20kOhm resistor,
552 90kohm_to_gnd: connected to ground via a 90kOhm resistor,
553 100kohm_to_gnd: connected to ground via an 100kOhm resistor,
554 125kohm_to_gnd: connected to ground via an 125kOhm resistor,
555 500kohm_to_gnd: connected to ground via a 500kOhm resistor,
556 640kohm_to_gnd: connected to ground via a 640kOhm resistor,
557 three_state: left floating.
558 For a list of available output power down options read
559 outX_powerdown_mode_available. If Y is not present the
560 mode is shared across all outputs.
561
562What: /sys/.../iio:deviceX/out_voltageY_powerdown_mode_available
563What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available
564What: /sys/.../iio:deviceX/out_altvoltageY_powerdown_mode_available
565What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
566KernelVersion: 2.6.38
567Contact: linux-iio@vger.kernel.org
568Description:
569 Lists all available output power down modes.
570 If Y is not present the mode is shared across all outputs.
571
572What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
573What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
574What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
575What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
576KernelVersion: 2.6.38
577Contact: linux-iio@vger.kernel.org
578Description:
579 Writing 1 causes output Y to enter the power down mode specified
580 by the corresponding outY_powerdown_mode. DAC output stage is
581 disconnected from the amplifier. Clearing returns to normal
582 operation. Y may be suppressed if all outputs are controlled
583 together.
584
585What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
586KernelVersion: 3.4.0
587Contact: linux-iio@vger.kernel.org
588Description:
589 Output frequency for channel Y in Hz. The number must always be
590 specified and unique if the output corresponds to a single
591 channel.
592
593What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
594KernelVersion: 3.4.0
595Contact: linux-iio@vger.kernel.org
596Description:
597 Phase in radians of one frequency/clock output Y
598 (out_altvoltageY) relative to another frequency/clock output
599 (out_altvoltageZ) of the device X. The number must always be
600 specified and unique if the output corresponds to a single
601 channel.
602
603What: /sys/bus/iio/devices/iio:deviceX/events
604KernelVersion: 2.6.35
605Contact: linux-iio@vger.kernel.org
606Description:
607 Configuration of which hardware generated events are passed up
608 to user-space.
609
610What: /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en
611What: /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en
612What: /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en
613What: /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en
614What: /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en
615What: /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en
616What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en
617What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en
618What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en
619What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en
620What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en
621What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en
622What: /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en
623What: /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en
624What: /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en
625What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en
626What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en
627What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en
628What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_rising_en
629What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_falling_en
630What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_rising_en
631What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_falling_en
632What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_en
633What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_en
634What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_rising_en
635What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_falling_en
636What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en
637What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en
638What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en
639What: /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
640What: /sys/.../iio:deviceX/events/in_voltageY_thresh_either_en
641What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
642What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
643KernelVersion: 2.6.37
644Contact: linux-iio@vger.kernel.org
645Description:
646 Event generated when channel passes a threshold in the specified
647 (_rising|_falling) direction. If the direction is not specified,
648 then either the device will report an event which ever direction
649 a single threshold value is passed in (e.g.
650 <type>[Y][_name]_<raw|input>_thresh_value) or
651 <type>[Y][_name]_<raw|input>_thresh_rising_value and
652 <type>[Y][_name]_<raw|input>_thresh_falling_value may take
653 different values, but the device can only enable both thresholds
654 or neither.
655 Note the driver will assume the last p events requested are
656 to be enabled where p is how many it supports (which may vary
657 depending on the exact set requested. So if you want to be
658 sure you have set what you think you have, check the contents of
659 these attributes after everything is configured. Drivers may
660 have to buffer any parameters so that they are consistent when
661 a given event type is enabled at a future point (and not those for
662 whatever event was previously enabled).
663
664What: /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en
665What: /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en
666What: /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
667What: /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
668What: /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
669What: /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
670What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
671What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
672What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
673What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en
674What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en
675What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en
676What: /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en
677What: /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en
678What: /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en
679What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en
680What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en
681What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en
682What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_rising_en
683What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_falling_en
684What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_rising_en
685What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_falling_en
686What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_rising_en
687What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_falling_en
688What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_rising_en
689What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_falling_en
690What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en
691What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en
692What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en
693What: /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en
694What: /sys/.../iio:deviceX/events/in_tempY_roc_rising_en
695What: /sys/.../iio:deviceX/events/in_tempY_roc_falling_en
696KernelVersion: 2.6.37
697Contact: linux-iio@vger.kernel.org
698Description:
699 Event generated when channel passes a threshold on the rate of
700 change (1st differential) in the specified (_rising|_falling)
701 direction. If the direction is not specified, then either the
702 device will report an event which ever direction a single
703 threshold value is passed in (e.g.
704 <type>[Y][_name]_<raw|input>_roc_value) or
705 <type>[Y][_name]_<raw|input>_roc_rising_value and
706 <type>[Y][_name]_<raw|input>_roc_falling_value may take
707 different values, but the device can only enable both rate of
708 change thresholds or neither.
709 Note the driver will assume the last p events requested are
710 to be enabled where p is however many it supports (which may
711 vary depending on the exact set requested. So if you want to be
712 sure you have set what you think you have, check the contents of
713 these attributes after everything is configured. Drivers may
714 have to buffer any parameters so that they are consistent when
715 a given event type is enabled a future point (and not those for
716 whatever event was previously enabled).
717
718What: /sys/.../events/in_accel_thresh_rising_value
719What: /sys/.../events/in_accel_thresh_falling_value
720What: /sys/.../events/in_accel_x_raw_thresh_rising_value
721What: /sys/.../events/in_accel_x_raw_thresh_falling_value
722What: /sys/.../events/in_accel_y_raw_thresh_rising_value
723What: /sys/.../events/in_accel_y_raw_thresh_falling_value
724What: /sys/.../events/in_accel_z_raw_thresh_rising_value
725What: /sys/.../events/in_accel_z_raw_thresh_falling_value
726What: /sys/.../events/in_anglvel_x_raw_thresh_rising_value
727What: /sys/.../events/in_anglvel_x_raw_thresh_falling_value
728What: /sys/.../events/in_anglvel_y_raw_thresh_rising_value
729What: /sys/.../events/in_anglvel_y_raw_thresh_falling_value
730What: /sys/.../events/in_anglvel_z_raw_thresh_rising_value
731What: /sys/.../events/in_anglvel_z_raw_thresh_falling_value
732What: /sys/.../events/in_magn_x_raw_thresh_rising_value
733What: /sys/.../events/in_magn_x_raw_thresh_falling_value
734What: /sys/.../events/in_magn_y_raw_thresh_rising_value
735What: /sys/.../events/in_magn_y_raw_thresh_falling_value
736What: /sys/.../events/in_magn_z_raw_thresh_rising_value
737What: /sys/.../events/in_magn_z_raw_thresh_falling_value
738What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_rising_value
739What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_falling_value
740What: /sys/.../events/in_rot_from_north_true_raw_thresh_rising_value
741What: /sys/.../events/in_rot_from_north_true_raw_thresh_falling_value
742What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_rising_value
743What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_falling_value
744What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_rising_value
745What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_falling_value
746What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value
747What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value
748What: /sys/.../events/in_voltageY_raw_thresh_rising_value
749What: /sys/.../events/in_voltageY_raw_thresh_falling_value
750What: /sys/.../events/in_tempY_raw_thresh_rising_value
751What: /sys/.../events/in_tempY_raw_thresh_falling_value
752What: /sys/.../events/in_illuminance0_thresh_falling_value
753what: /sys/.../events/in_illuminance0_thresh_rising_value
754what: /sys/.../events/in_proximity0_thresh_falling_value
755what: /sys/.../events/in_proximity0_thresh_rising_value
756KernelVersion: 2.6.37
757Contact: linux-iio@vger.kernel.org
758Description:
759 Specifies the value of threshold that the device is comparing
760 against for the events enabled by
761 <type>Y[_name]_thresh[_rising|falling]_en.
762 If separate attributes exist for the two directions, but
763 direction is not specified for this attribute, then a single
764 threshold value applies to both directions.
765 The raw or input element of the name indicates whether the
766 value is in raw device units or in processed units (as _raw
767 and _input do on sysfs direct channel read attributes).
768
769What: /sys/.../events/in_accel_scale
770What: /sys/.../events/in_accel_peak_scale
771What: /sys/.../events/in_anglvel_scale
772What: /sys/.../events/in_magn_scale
773What: /sys/.../events/in_rot_from_north_magnetic_scale
774What: /sys/.../events/in_rot_from_north_true_scale
775What: /sys/.../events/in_voltage_scale
776What: /sys/.../events/in_voltage_supply_scale
777What: /sys/.../events/in_temp_scale
778What: /sys/.../events/in_illuminance_scale
779What: /sys/.../events/in_proximity_scale
780KernelVersion: 3.21
781Contact: linux-iio@vger.kernel.org
782Description:
783 Specifies the conversion factor from the standard units
784 to device specific units used to set the event trigger
785 threshold.
786
787What: /sys/.../events/in_accel_x_thresh_rising_hysteresis
788What: /sys/.../events/in_accel_x_thresh_falling_hysteresis
789What: /sys/.../events/in_accel_x_thresh_either_hysteresis
790What: /sys/.../events/in_accel_y_thresh_rising_hysteresis
791What: /sys/.../events/in_accel_y_thresh_falling_hysteresis
792What: /sys/.../events/in_accel_y_thresh_either_hysteresis
793What: /sys/.../events/in_accel_z_thresh_rising_hysteresis
794What: /sys/.../events/in_accel_z_thresh_falling_hysteresis
795What: /sys/.../events/in_accel_z_thresh_either_hysteresis
796What: /sys/.../events/in_anglvel_x_thresh_rising_hysteresis
797What: /sys/.../events/in_anglvel_x_thresh_falling_hysteresis
798What: /sys/.../events/in_anglvel_x_thresh_either_hysteresis
799What: /sys/.../events/in_anglvel_y_thresh_rising_hysteresis
800What: /sys/.../events/in_anglvel_y_thresh_falling_hysteresis
801What: /sys/.../events/in_anglvel_y_thresh_either_hysteresis
802What: /sys/.../events/in_anglvel_z_thresh_rising_hysteresis
803What: /sys/.../events/in_anglvel_z_thresh_falling_hysteresis
804What: /sys/.../events/in_anglvel_z_thresh_either_hysteresis
805What: /sys/.../events/in_magn_x_thresh_rising_hysteresis
806What: /sys/.../events/in_magn_x_thresh_falling_hysteresis
807What: /sys/.../events/in_magn_x_thresh_either_hysteresis
808What: /sys/.../events/in_magn_y_thresh_rising_hysteresis
809What: /sys/.../events/in_magn_y_thresh_falling_hysteresis
810What: /sys/.../events/in_magn_y_thresh_either_hysteresis
811What: /sys/.../events/in_magn_z_thresh_rising_hysteresis
812What: /sys/.../events/in_magn_z_thresh_falling_hysteresis
813What: /sys/.../events/in_magn_z_thresh_either_hysteresis
814What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_hysteresis
815What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_hysteresis
816What: /sys/.../events/in_rot_from_north_magnetic_thresh_either_hysteresis
817What: /sys/.../events/in_rot_from_north_true_thresh_rising_hysteresis
818What: /sys/.../events/in_rot_from_north_true_thresh_falling_hysteresis
819What: /sys/.../events/in_rot_from_north_true_thresh_either_hysteresis
820What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_hysteresis
821What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_hysteresis
822What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_either_hysteresis
823What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_hysteresis
824What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_hysteresis
825What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_either_hysteresis
826What: /sys/.../events/in_voltageY_thresh_rising_hysteresis
827What: /sys/.../events/in_voltageY_thresh_falling_hysteresis
828What: /sys/.../events/in_voltageY_thresh_either_hysteresis
829What: /sys/.../events/in_tempY_thresh_rising_hysteresis
830What: /sys/.../events/in_tempY_thresh_falling_hysteresis
831What: /sys/.../events/in_tempY_thresh_either_hysteresis
832What: /sys/.../events/in_illuminance0_thresh_falling_hysteresis
833what: /sys/.../events/in_illuminance0_thresh_rising_hysteresis
834what: /sys/.../events/in_illuminance0_thresh_either_hysteresis
835what: /sys/.../events/in_proximity0_thresh_falling_hysteresis
836what: /sys/.../events/in_proximity0_thresh_rising_hysteresis
837what: /sys/.../events/in_proximity0_thresh_either_hysteresis
838KernelVersion: 3.13
839Contact: linux-iio@vger.kernel.org
840Description:
841 Specifies the hysteresis of threshold that the device is comparing
842 against for the events enabled by
843 <type>Y[_name]_thresh[_(rising|falling)]_hysteresis.
844 If separate attributes exist for the two directions, but
845 direction is not specified for this attribute, then a single
846 hysteresis value applies to both directions.
847 For falling events the hysteresis is added to the _value attribute for
848 this event to get the upper threshold for when the event goes back to
849 normal, for rising events the hysteresis is subtracted from the _value
850 attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200
851 and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event
852 will get activated once in_voltage0_raw goes above 1200 and will become
853 deactivated again once the value falls below 1150.
854
855What: /sys/.../events/in_accel_x_raw_roc_rising_value
856What: /sys/.../events/in_accel_x_raw_roc_falling_value
857What: /sys/.../events/in_accel_y_raw_roc_rising_value
858What: /sys/.../events/in_accel_y_raw_roc_falling_value
859What: /sys/.../events/in_accel_z_raw_roc_rising_value
860What: /sys/.../events/in_accel_z_raw_roc_falling_value
861What: /sys/.../events/in_anglvel_x_raw_roc_rising_value
862What: /sys/.../events/in_anglvel_x_raw_roc_falling_value
863What: /sys/.../events/in_anglvel_y_raw_roc_rising_value
864What: /sys/.../events/in_anglvel_y_raw_roc_falling_value
865What: /sys/.../events/in_anglvel_z_raw_roc_rising_value
866What: /sys/.../events/in_anglvel_z_raw_roc_falling_value
867What: /sys/.../events/in_magn_x_raw_roc_rising_value
868What: /sys/.../events/in_magn_x_raw_roc_falling_value
869What: /sys/.../events/in_magn_y_raw_roc_rising_value
870What: /sys/.../events/in_magn_y_raw_roc_falling_value
871What: /sys/.../events/in_magn_z_raw_roc_rising_value
872What: /sys/.../events/in_magn_z_raw_roc_falling_value
873What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_rising_value
874What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_falling_value
875What: /sys/.../events/in_rot_from_north_true_raw_roc_rising_value
876What: /sys/.../events/in_rot_from_north_true_raw_roc_falling_value
877What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_rising_value
878What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_falling_value
879What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_rising_value
880What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_falling_value
881What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value
882What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value
883What: /sys/.../events/in_voltageY_raw_roc_rising_value
884What: /sys/.../events/in_voltageY_raw_roc_falling_value
885What: /sys/.../events/in_tempY_raw_roc_rising_value
886What: /sys/.../events/in_tempY_raw_roc_falling_value
887KernelVersion: 2.6.37
888Contact: linux-iio@vger.kernel.org
889Description:
890 Specifies the value of rate of change threshold that the
891 device is comparing against for the events enabled by
892 <type>[Y][_name]_roc[_rising|falling]_en.
893 If separate attributes exist for the two directions,
894 but direction is not specified for this attribute,
895 then a single threshold value applies to both directions.
896 The raw or input element of the name indicates whether the
897 value is in raw device units or in processed units (as _raw
898 and _input do on sysfs direct channel read attributes).
899
900What: /sys/.../events/in_accel_x_thresh_rising_period
901What: /sys/.../events/in_accel_x_thresh_falling_period
902What: /sys/.../events/in_accel_x_roc_rising_period
903What: /sys/.../events/in_accel_x_roc_falling_period
904What: /sys/.../events/in_accel_y_thresh_rising_period
905What: /sys/.../events/in_accel_y_thresh_falling_period
906What: /sys/.../events/in_accel_y_roc_rising_period
907What: /sys/.../events/in_accel_y_roc_falling_period
908What: /sys/.../events/in_accel_z_thresh_rising_period
909What: /sys/.../events/in_accel_z_thresh_falling_period
910What: /sys/.../events/in_accel_z_roc_rising_period
911What: /sys/.../events/in_accel_z_roc_falling_period
912What: /sys/.../events/in_anglvel_x_thresh_rising_period
913What: /sys/.../events/in_anglvel_x_thresh_falling_period
914What: /sys/.../events/in_anglvel_x_roc_rising_period
915What: /sys/.../events/in_anglvel_x_roc_falling_period
916What: /sys/.../events/in_anglvel_y_thresh_rising_period
917What: /sys/.../events/in_anglvel_y_thresh_falling_period
918What: /sys/.../events/in_anglvel_y_roc_rising_period
919What: /sys/.../events/in_anglvel_y_roc_falling_period
920What: /sys/.../events/in_anglvel_z_thresh_rising_period
921What: /sys/.../events/in_anglvel_z_thresh_falling_period
922What: /sys/.../events/in_anglvel_z_roc_rising_period
923What: /sys/.../events/in_anglvel_z_roc_falling_period
924What: /sys/.../events/in_magn_x_thresh_rising_period
925What: /sys/.../events/in_magn_x_thresh_falling_period
926What: /sys/.../events/in_magn_x_roc_rising_period
927What: /sys/.../events/in_magn_x_roc_falling_period
928What: /sys/.../events/in_magn_y_thresh_rising_period
929What: /sys/.../events/in_magn_y_thresh_falling_period
930What: /sys/.../events/in_magn_y_roc_rising_period
931What: /sys/.../events/in_magn_y_roc_falling_period
932What: /sys/.../events/in_magn_z_thresh_rising_period
933What: /sys/.../events/in_magn_z_thresh_falling_period
934What: /sys/.../events/in_magn_z_roc_rising_period
935What: /sys/.../events/in_magn_z_roc_falling_period
936What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_period
937What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_period
938What: /sys/.../events/in_rot_from_north_magnetic_roc_rising_period
939What: /sys/.../events/in_rot_from_north_magnetic_roc_falling_period
940What: /sys/.../events/in_rot_from_north_true_thresh_rising_period
941What: /sys/.../events/in_rot_from_north_true_thresh_falling_period
942What: /sys/.../events/in_rot_from_north_true_roc_rising_period
943What: /sys/.../events/in_rot_from_north_true_roc_falling_period
944What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_period
945What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_period
946What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_rising_period
947What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_falling_period
948What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_period
949What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_period
950What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_rising_period
951What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_falling_period
952What: /sys/.../events/in_voltageY_supply_thresh_rising_period
953What: /sys/.../events/in_voltageY_supply_thresh_falling_period
954What: /sys/.../events/in_voltageY_supply_roc_rising_period
955What: /sys/.../events/in_voltageY_supply_roc_falling_period
956What: /sys/.../events/in_voltageY_thresh_rising_period
957What: /sys/.../events/in_voltageY_thresh_falling_period
958What: /sys/.../events/in_voltageY_roc_rising_period
959What: /sys/.../events/in_voltageY_roc_falling_period
960What: /sys/.../events/in_tempY_thresh_rising_period
961What: /sys/.../events/in_tempY_thresh_falling_period
962What: /sys/.../events/in_tempY_roc_rising_period
963What: /sys/.../events/in_tempY_roc_falling_period
964What: /sys/.../events/in_accel_x&y&z_mag_falling_period
965What: /sys/.../events/in_intensity0_thresh_period
966What: /sys/.../events/in_proximity0_thresh_period
967What: /sys/.../events/in_activity_still_thresh_rising_period
968What: /sys/.../events/in_activity_still_thresh_falling_period
969What: /sys/.../events/in_activity_walking_thresh_rising_period
970What: /sys/.../events/in_activity_walking_thresh_falling_period
971What: /sys/.../events/in_activity_jogging_thresh_rising_period
972What: /sys/.../events/in_activity_jogging_thresh_falling_period
973What: /sys/.../events/in_activity_running_thresh_rising_period
974What: /sys/.../events/in_activity_running_thresh_falling_period
975KernelVersion: 2.6.37
976Contact: linux-iio@vger.kernel.org
977Description:
978 Period of time (in seconds) for which the condition must be
979 met before an event is generated. If direction is not
980 specified then this period applies to both directions.
981
982What: /sys/.../events/in_accel_thresh_rising_low_pass_filter_3db
983What: /sys/.../events/in_anglvel_thresh_rising_low_pass_filter_3db
984What: /sys/.../events/in_magn_thresh_rising_low_pass_filter_3db
985KernelVersion: 4.2
986Contact: linux-iio@vger.kernel.org
987Description:
988 If a low pass filter can be applied to the event generation
989 this property gives its 3db frequency in Hz.
990 A value of zero disables the filter.
991
992What: /sys/.../events/in_accel_thresh_rising_high_pass_filter_3db
993What: /sys/.../events/in_anglvel_thresh_rising_high_pass_filter_3db
994What: /sys/.../events/in_magn_thresh_rising_high_pass_filter_3db
995KernelVersion: 4.2
996Contact: linux-iio@vger.kernel.org
997Description:
998 If a high pass filter can be applied to the event generation
999 this property gives its 3db frequency in Hz.
1000 A value of zero disables the filter.
1001
1002What: /sys/.../events/in_activity_still_thresh_rising_en
1003What: /sys/.../events/in_activity_still_thresh_falling_en
1004What: /sys/.../events/in_activity_walking_thresh_rising_en
1005What: /sys/.../events/in_activity_walking_thresh_falling_en
1006What: /sys/.../events/in_activity_jogging_thresh_rising_en
1007What: /sys/.../events/in_activity_jogging_thresh_falling_en
1008What: /sys/.../events/in_activity_running_thresh_rising_en
1009What: /sys/.../events/in_activity_running_thresh_falling_en
1010KernelVersion: 3.19
1011Contact: linux-iio@vger.kernel.org
1012Description:
1013 Enables or disables activitity events. Depending on direction
1014 an event is generated when sensor ENTERS or LEAVES a given state.
1015
1016What: /sys/.../events/in_activity_still_thresh_rising_value
1017What: /sys/.../events/in_activity_still_thresh_falling_value
1018What: /sys/.../events/in_activity_walking_thresh_rising_value
1019What: /sys/.../events/in_activity_walking_thresh_falling_value
1020What: /sys/.../events/in_activity_jogging_thresh_rising_value
1021What: /sys/.../events/in_activity_jogging_thresh_falling_value
1022What: /sys/.../events/in_activity_running_thresh_rising_value
1023What: /sys/.../events/in_activity_running_thresh_falling_value
1024KernelVersion: 3.19
1025Contact: linux-iio@vger.kernel.org
1026Description:
1027 Confidence value (in units as percentage) to be used
1028 for deciding when an event should be generated. E.g for
1029 running: If the confidence value reported by the sensor
1030 is greater than in_activity_running_thresh_rising_value
1031 then the sensor ENTERS running state. Conversely, if the
1032 confidence value reported by the sensor is lower than
1033 in_activity_running_thresh_falling_value then the sensor
1034 is LEAVING running state.
1035
1036What: /sys/.../iio:deviceX/events/in_accel_mag_en
1037What: /sys/.../iio:deviceX/events/in_accel_mag_rising_en
1038What: /sys/.../iio:deviceX/events/in_accel_mag_falling_en
1039What: /sys/.../iio:deviceX/events/in_accel_x_mag_en
1040What: /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en
1041What: /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en
1042What: /sys/.../iio:deviceX/events/in_accel_y_mag_en
1043What: /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en
1044What: /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en
1045What: /sys/.../iio:deviceX/events/in_accel_z_mag_en
1046What: /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en
1047What: /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en
1048What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en
1049What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en
1050KernelVersion: 2.6.37
1051Contact: linux-iio@vger.kernel.org
1052Description:
1053 Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
1054 magnitude of the channel is compared to the threshold, not its
1055 signed value.
1056
1057What: /sys/.../events/in_accel_raw_mag_value
1058What: /sys/.../events/in_accel_x_raw_mag_rising_value
1059What: /sys/.../events/in_accel_y_raw_mag_rising_value
1060What: /sys/.../events/in_accel_z_raw_mag_rising_value
1061KernelVersion: 2.6.37
1062Contact: linux-iio@vger.kernel.org
1063Description:
1064 The value to which the magnitude of the channel is compared. If
1065 number or direction is not specified, applies to all channels of
1066 this type.
1067
1068What: /sys/.../events/in_steps_change_en
1069KernelVersion: 4.0
1070Contact: linux-iio@vger.kernel.org
1071Description:
1072 Event generated when channel passes a threshold on the absolute
1073 change in value. E.g. for steps: a step change event is
1074 generated each time the user takes N steps, where N is set using
1075 in_steps_change_value.
1076
1077What: /sys/.../events/in_steps_change_value
1078KernelVersion: 4.0
1079Contact: linux-iio@vger.kernel.org
1080Description:
1081 Specifies the value of change threshold that the
1082 device is comparing against for the events enabled by
1083 <type>[Y][_name]_roc[_rising|falling|]_en. E.g. for steps:
1084 if set to 3, a step change event will be generated every 3
1085 steps.
1086
1087What: /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger
1088KernelVersion: 2.6.35
1089Contact: linux-iio@vger.kernel.org
1090Description:
1091 The name of the trigger source being used, as per string given
1092 in /sys/class/iio/triggerY/name.
1093
1094What: /sys/bus/iio/devices/iio:deviceX/buffer/length
1095KernelVersion: 2.6.35
1096Contact: linux-iio@vger.kernel.org
1097Description:
1098 Number of scans contained by the buffer.
1099
1100What: /sys/bus/iio/devices/iio:deviceX/buffer/enable
1101KernelVersion: 2.6.35
1102Contact: linux-iio@vger.kernel.org
1103Description:
1104 Actually start the buffer capture up. Will start trigger
1105 if first device and appropriate.
1106
1107What: /sys/bus/iio/devices/iio:deviceX/scan_elements
1108KernelVersion: 2.6.37
1109Contact: linux-iio@vger.kernel.org
1110Description:
1111 Directory containing interfaces for elements that will be
1112 captured for a single triggered sample set in the buffer.
1113
1114What: /sys/.../iio:deviceX/scan_elements/in_accel_x_en
1115What: /sys/.../iio:deviceX/scan_elements/in_accel_y_en
1116What: /sys/.../iio:deviceX/scan_elements/in_accel_z_en
1117What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_en
1118What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_en
1119What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_en
1120What: /sys/.../iio:deviceX/scan_elements/in_magn_x_en
1121What: /sys/.../iio:deviceX/scan_elements/in_magn_y_en
1122What: /sys/.../iio:deviceX/scan_elements/in_magn_z_en
1123What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_en
1124What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_en
1125What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_en
1126What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_en
1127What: /sys/.../iio:deviceX/scan_elements/in_timestamp_en
1128What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en
1129What: /sys/.../iio:deviceX/scan_elements/in_voltageY_en
1130What: /sys/.../iio:deviceX/scan_elements/in_voltageY-voltageZ_en
1131What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_en
1132What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_en
1133What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_en
1134What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_en
1135What: /sys/.../iio:deviceX/scan_elements/in_incli_x_en
1136What: /sys/.../iio:deviceX/scan_elements/in_incli_y_en
1137What: /sys/.../iio:deviceX/scan_elements/in_pressureY_en
1138What: /sys/.../iio:deviceX/scan_elements/in_pressure_en
1139What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_en
1140What: /sys/.../iio:deviceX/scan_elements/in_proximity_en
1141KernelVersion: 2.6.37
1142Contact: linux-iio@vger.kernel.org
1143Description:
1144 Scan element control for triggered data capture.
1145
1146What: /sys/.../iio:deviceX/scan_elements/in_accel_type
1147What: /sys/.../iio:deviceX/scan_elements/in_anglvel_type
1148What: /sys/.../iio:deviceX/scan_elements/in_magn_type
1149What: /sys/.../iio:deviceX/scan_elements/in_incli_type
1150What: /sys/.../iio:deviceX/scan_elements/in_voltageY_type
1151What: /sys/.../iio:deviceX/scan_elements/in_voltage_type
1152What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_type
1153What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_type
1154What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_type
1155What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_type
1156What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_type
1157What: /sys/.../iio:deviceX/scan_elements/in_timestamp_type
1158What: /sys/.../iio:deviceX/scan_elements/in_pressureY_type
1159What: /sys/.../iio:deviceX/scan_elements/in_pressure_type
1160What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_type
1161What: /sys/.../iio:deviceX/scan_elements/in_proximity_type
1162KernelVersion: 2.6.37
1163Contact: linux-iio@vger.kernel.org
1164Description:
1165 Description of the scan element data storage within the buffer
1166 and hence the form in which it is read from user-space.
1167 Form is [be|le]:[s|u]bits/storagebits[>>shift].
1168 be or le specifies big or little endian. s or u specifies if
1169 signed (2's complement) or unsigned. bits is the number of bits
1170 of data and storagebits is the space (after padding) that it
1171 occupies in the buffer. shift if specified, is the shift that
1172 needs to be applied prior to masking out unused bits. Some
1173 devices put their data in the middle of the transferred elements
1174 with additional information on both sides. Note that some
1175 devices will have additional information in the unused bits
1176 so to get a clean value, the bits value must be used to mask
1177 the buffer output value appropriately. The storagebits value
1178 also specifies the data alignment. So s48/64>>2 will be a
1179 signed 48 bit integer stored in a 64 bit location aligned to
1180 a 64 bit boundary. To obtain the clean value, shift right 2
1181 and apply a mask to zero the top 16 bits of the result.
1182 For other storage combinations this attribute will be extended
1183 appropriately.
1184
1185What: /sys/.../iio:deviceX/scan_elements/in_accel_type_available
1186KernelVersion: 2.6.37
1187Contact: linux-iio@vger.kernel.org
1188Description:
1189 If the type parameter can take one of a small set of values,
1190 this attribute lists them.
1191
1192What: /sys/.../iio:deviceX/scan_elements/in_voltageY_index
1193What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_index
1194What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_index
1195What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_index
1196What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_index
1197What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_index
1198What: /sys/.../iio:deviceX/scan_elements/in_accel_x_index
1199What: /sys/.../iio:deviceX/scan_elements/in_accel_y_index
1200What: /sys/.../iio:deviceX/scan_elements/in_accel_z_index
1201What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_index
1202What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_index
1203What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_index
1204What: /sys/.../iio:deviceX/scan_elements/in_magn_x_index
1205What: /sys/.../iio:deviceX/scan_elements/in_magn_y_index
1206What: /sys/.../iio:deviceX/scan_elements/in_magn_z_index
1207What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_index
1208What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_index
1209What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_index
1210What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_index
1211What: /sys/.../iio:deviceX/scan_elements/in_incli_x_index
1212What: /sys/.../iio:deviceX/scan_elements/in_incli_y_index
1213What: /sys/.../iio:deviceX/scan_elements/in_timestamp_index
1214What: /sys/.../iio:deviceX/scan_elements/in_pressureY_index
1215What: /sys/.../iio:deviceX/scan_elements/in_pressure_index
1216What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_index
1217What: /sys/.../iio:deviceX/scan_elements/in_proximity_index
1218KernelVersion: 2.6.37
1219Contact: linux-iio@vger.kernel.org
1220Description:
1221 A single positive integer specifying the position of this
1222 scan element in the buffer. Note these are not dependent on
1223 what is enabled and may not be contiguous. Thus for user-space
1224 to establish the full layout these must be used in conjunction
1225 with all _en attributes to establish which channels are present,
1226 and the relevant _type attributes to establish the data storage
1227 format.
1228
1229What: /sys/.../iio:deviceX/in_activity_still_input
1230What: /sys/.../iio:deviceX/in_activity_walking_input
1231What: /sys/.../iio:deviceX/in_activity_jogging_input
1232What: /sys/.../iio:deviceX/in_activity_running_input
1233KernelVersion: 3.19
1234Contact: linux-iio@vger.kernel.org
1235Description:
1236 This attribute is used to read the confidence for an activity
1237 expressed in units as percentage.
1238
1239What: /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw
1240KernelVersion: 2.6.38
1241Contact: linux-iio@vger.kernel.org
1242Description:
1243 This attribute is used to read the amount of quadrature error
1244 present in the device at a given time.
1245
1246What: /sys/.../iio:deviceX/in_accelX_power_mode
1247KernelVersion: 3.11
1248Contact: linux-iio@vger.kernel.org
1249Description:
1250 Specifies the chip power mode.
1251 low_noise: reduce noise level from ADC,
1252 low_power: enable low current consumption.
1253 For a list of available output power modes read
1254 in_accel_power_mode_available.
1255
1256What: /sys/.../iio:deviceX/in_energy_input
1257What: /sys/.../iio:deviceX/in_energy_raw
1258KernelVersion: 4.0
1259Contact: linux-iio@vger.kernel.org
1260Description:
1261 This attribute is used to read the energy value reported by the
1262 device (e.g.: human activity sensors report energy burnt by the
1263 user). Units after application of scale are Joules.
1264
1265What: /sys/.../iio:deviceX/in_distance_input
1266What: /sys/.../iio:deviceX/in_distance_raw
1267KernelVersion: 4.0
1268Contact: linux-iio@vger.kernel.org
1269Description:
1270 This attribute is used to read the measured distance to an object
1271 or the distance covered by the user since the last reboot while
1272 activated. Units after application of scale are meters.
1273
1274What: /sys/bus/iio/devices/iio:deviceX/store_eeprom
1275KernelVersion: 3.4.0
1276Contact: linux-iio@vger.kernel.org
1277Description:
1278 Writing '1' stores the current device configuration into
1279 on-chip EEPROM. After power-up or chip reset the device will
1280 automatically load the saved configuration.
1281
1282What: /sys/.../iio:deviceX/in_proximity_raw
1283What: /sys/.../iio:deviceX/in_proximity_input
1284What: /sys/.../iio:deviceX/in_proximityY_raw
1285KernelVersion: 3.4
1286Contact: linux-iio@vger.kernel.org
1287Description:
1288 Proximity measurement indicating that some
1289 object is near the sensor, usually by observing
1290 reflectivity of infrared or ultrasound emitted.
1291 Often these sensors are unit less and as such conversion
1292 to SI units is not possible. Higher proximity measurements
1293 indicate closer objects, and vice versa. Units after
1294 application of scale and offset are meters.
1295
1296What: /sys/.../iio:deviceX/in_illuminance_input
1297What: /sys/.../iio:deviceX/in_illuminance_raw
1298What: /sys/.../iio:deviceX/in_illuminanceY_input
1299What: /sys/.../iio:deviceX/in_illuminanceY_raw
1300What: /sys/.../iio:deviceX/in_illuminanceY_mean_raw
1301What: /sys/.../iio:deviceX/in_illuminance_ir_raw
1302What: /sys/.../iio:deviceX/in_illuminance_clear_raw
1303KernelVersion: 3.4
1304Contact: linux-iio@vger.kernel.org
1305Description:
1306 Illuminance measurement, units after application of scale
1307 and offset are lux.
1308
1309What: /sys/.../iio:deviceX/in_intensityY_raw
1310What: /sys/.../iio:deviceX/in_intensityY_ir_raw
1311What: /sys/.../iio:deviceX/in_intensityY_both_raw
1312What: /sys/.../iio:deviceX/in_intensityY_uv_raw
1313What: /sys/.../iio:deviceX/in_intensityY_duv_raw
1314KernelVersion: 3.4
1315Contact: linux-iio@vger.kernel.org
1316Description:
1317 Unit-less light intensity. Modifiers both and ir indicate
1318 that measurements contain visible and infrared light
1319 components or just infrared light, respectively. Modifier
1320 uv indicates that measurements contain ultraviolet light
1321 components. Modifier duv indicates that measurements
1322 contain deep ultraviolet light components.
1323
1324What: /sys/.../iio:deviceX/in_uvindex_input
1325KernelVersion: 4.6
1326Contact: linux-iio@vger.kernel.org
1327Description:
1328 UV light intensity index measuring the human skin's response to
1329 different wavelength of sunlight weighted according to the
1330 standardised CIE Erythemal Action Spectrum. UV index values range
1331 from 0 (low) to >=11 (extreme).
1332
1333What: /sys/.../iio:deviceX/in_intensity_red_integration_time
1334What: /sys/.../iio:deviceX/in_intensity_green_integration_time
1335What: /sys/.../iio:deviceX/in_intensity_blue_integration_time
1336What: /sys/.../iio:deviceX/in_intensity_clear_integration_time
1337What: /sys/.../iio:deviceX/in_illuminance_integration_time
1338KernelVersion: 3.12
1339Contact: linux-iio@vger.kernel.org
1340Description:
1341 This attribute is used to get/set the integration time in
1342 seconds.
1343
1344What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_integration_time
1345KernelVersion: 4.0
1346Contact: linux-iio@vger.kernel.org
1347Description:
1348 Number of seconds in which to compute speed.
1349
1350What: /sys/bus/iio/devices/iio:deviceX/in_rot_quaternion_raw
1351KernelVersion: 3.15
1352Contact: linux-iio@vger.kernel.org
1353Description:
1354 Raw value of quaternion components using a format
1355 x y z w. Here x, y, and z component represents the axis about
1356 which a rotation will occur and w component represents the
1357 amount of rotation.
1358
1359What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_raw
1360What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_raw
1361What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_raw
1362What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_raw
1363KernelVersion: 3.15
1364Contact: linux-iio@vger.kernel.org
1365Description:
1366 Raw value of rotation from true/magnetic north measured with
1367 or without compensation from tilt sensors.
1368
1369What: /sys/bus/iio/devices/iio:deviceX/in_currentX_raw
1370What: /sys/bus/iio/devices/iio:deviceX/in_currentX_i_raw
1371What: /sys/bus/iio/devices/iio:deviceX/in_currentX_q_raw
1372KernelVersion: 3.18
1373Contact: linux-iio@vger.kernel.org
1374Description:
1375 Raw current measurement from channel X. Units are in milliamps
1376 after application of scale and offset. If no offset or scale is
1377 present, output should be considered as processed with the
1378 unit in milliamps.
1379
1380 Channels with 'i' and 'q' modifiers always exist in pairs and both
1381 channels refer to the same signal. The 'i' channel contains the in-phase
1382 component of the signal while the 'q' channel contains the quadrature
1383 component.
1384
1385What: /sys/.../iio:deviceX/in_energy_en
1386What: /sys/.../iio:deviceX/in_distance_en
1387What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_en
1388What: /sys/.../iio:deviceX/in_steps_en
1389KernelVersion: 3.19
1390Contact: linux-iio@vger.kernel.org
1391Description:
1392 Activates a device feature that runs in firmware/hardware.
1393 E.g. for steps: the pedometer saves power while not used;
1394 when activated, it will count the steps taken by the user in
1395 firmware and export them through in_steps_input.
1396
1397What: /sys/.../iio:deviceX/in_steps_input
1398KernelVersion: 3.19
1399Contact: linux-iio@vger.kernel.org
1400Description:
1401 This attribute is used to read the number of steps taken by the user
1402 since the last reboot while activated.
1403
1404What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_input
1405What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_raw
1406KernelVersion: 3.19
1407Contact: linux-iio@vger.kernel.org
1408Description:
1409 This attribute is used to read the current speed value of the
1410 user (which is the norm or magnitude of the velocity vector).
1411 Units after application of scale are m/s.
1412
1413What: /sys/.../iio:deviceX/in_steps_debounce_count
1414KernelVersion: 4.0
1415Contact: linux-iio@vger.kernel.org
1416Description:
1417 Specifies the number of steps that must occur within
1418 in_steps_filter_debounce_time for the pedometer to decide the
1419 consumer is making steps.
1420
1421What: /sys/.../iio:deviceX/in_steps_debounce_time
1422KernelVersion: 4.0
1423Contact: linux-iio@vger.kernel.org
1424Description:
1425 Specifies number of seconds in which we compute the steps
1426 that occur in order to decide if the consumer is making steps.
1427
1428What: /sys/bus/iio/devices/iio:deviceX/buffer/watermark
1429KernelVersion: 4.2
1430Contact: linux-iio@vger.kernel.org
1431Description:
1432 A single positive integer specifying the maximum number of scan
1433 elements to wait for.
1434 Poll will block until the watermark is reached.
1435 Blocking read will wait until the minimum between the requested
1436 read amount or the low water mark is available.
1437 Non-blocking read will retrieve the available samples from the
1438 buffer even if there are less samples then watermark level. This
1439 allows the application to block on poll with a timeout and read
1440 the available samples after the timeout expires and thus have a
1441 maximum delay guarantee.
1442
1443What: /sys/bus/iio/devices/iio:deviceX/buffer/data_available
1444KernelVersion: 4.16
1445Contact: linux-iio@vger.kernel.org
1446Description:
1447 A read-only value indicating the bytes of data available in the
1448 buffer. In the case of an output buffer, this indicates the
1449 amount of empty space available to write data to. In the case of
1450 an input buffer, this indicates the amount of data available for
1451 reading.
1452
1453What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_enabled
1454KernelVersion: 4.2
1455Contact: linux-iio@vger.kernel.org
1456Description:
1457 A read-only boolean value that indicates if the hardware fifo is
1458 currently enabled or disabled. If the device does not have a
1459 hardware fifo this entry is not present.
1460 The hardware fifo is enabled when the buffer is enabled if the
1461 current hardware fifo watermark level is set and other current
1462 device settings allows it (e.g. if a trigger is set that samples
1463 data differently that the hardware fifo does then hardware fifo
1464 will not enabled).
1465 If the hardware fifo is enabled and the level of the hardware
1466 fifo reaches the hardware fifo watermark level the device will
1467 flush its hardware fifo to the device buffer. Doing a non
1468 blocking read on the device when no samples are present in the
1469 device buffer will also force a flush.
1470 When the hardware fifo is enabled there is no need to use a
1471 trigger to use buffer mode since the watermark settings
1472 guarantees that the hardware fifo is flushed to the device
1473 buffer.
1474
1475What: /sys/bus/iio/devices/iio:device*/buffer/hwfifo_timeout
1476KernelVersion: 4.12
1477Contact: linux-iio@vger.kernel.org
1478Description:
1479 A read/write property to provide capability to delay reporting of
1480 samples till a timeout is reached. This allows host processors to
1481 sleep, while the sensor is storing samples in its internal fifo.
1482 The maximum timeout in seconds can be specified by setting
1483 hwfifo_timeout.The current delay can be read by reading
1484 hwfifo_timeout. A value of 0 means that there is no timeout.
1485
1486What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark
1487KernelVersion: 4.2
1488Contact: linux-iio@vger.kernel.org
1489Description:
1490 Read-only entry that contains a single integer specifying the
1491 current watermark level for the hardware fifo. If the device
1492 does not have a hardware fifo this entry is not present.
1493 The watermark level for the hardware fifo is set by the driver
1494 based on the value set by the user in buffer/watermark but
1495 taking into account hardware limitations (e.g. most hardware
1496 buffers are limited to 32-64 samples, some hardware buffers
1497 watermarks are fixed or have minimum levels). A value of 0
1498 means that the hardware watermark is unset.
1499
1500What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_min
1501KernelVersion: 4.2
1502Contact: linux-iio@vger.kernel.org
1503Description:
1504 A single positive integer specifying the minimum watermark level
1505 for the hardware fifo of this device. If the device does not
1506 have a hardware fifo this entry is not present.
1507 If the user sets buffer/watermark to a value less than this one,
1508 then the hardware watermark will remain unset.
1509
1510What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_max
1511KernelVersion: 4.2
1512Contact: linux-iio@vger.kernel.org
1513Description:
1514 A single positive integer specifying the maximum watermark level
1515 for the hardware fifo of this device. If the device does not
1516 have a hardware fifo this entry is not present.
1517 If the user sets buffer/watermark to a value greater than this
1518 one, then the hardware watermark will be capped at this value.
1519
1520What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_available
1521KernelVersion: 4.2
1522Contact: linux-iio@vger.kernel.org
1523Description:
1524 A list of positive integers specifying the available watermark
1525 levels for the hardware fifo. This entry is optional and if it
1526 is not present it means that all the values between
1527 hwfifo_watermark_min and hwfifo_watermark_max are supported.
1528 If the user sets buffer/watermark to a value greater than
1529 hwfifo_watermak_min but not equal to any of the values in this
1530 list, the driver will chose an appropriate value for the
1531 hardware fifo watermark level.
1532
1533What: /sys/bus/iio/devices/iio:deviceX/in_temp_calibemissivity
1534What: /sys/bus/iio/devices/iio:deviceX/in_tempX_calibemissivity
1535What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_calibemissivity
1536What: /sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibemissivity
1537KernelVersion: 4.1
1538Contact: linux-iio@vger.kernel.org
1539Description:
1540 The emissivity ratio of the surface in the field of view of the
1541 contactless temperature sensor. Emissivity varies from 0 to 1,
1542 with 1 being the emissivity of a black body.
1543
1544What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_oversampling_ratio
1545What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_oversampling_ratio
1546What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_oversampling_ratio
1547KernelVersion: 4.2
1548Contact: linux-iio@vger.kernel.org
1549Description:
1550 Hardware applied number of measurements for acquiring one
1551 data point. The HW will do <type>[_name]_oversampling_ratio
1552 measurements and return the average value as output data. Each
1553 value resulted from <type>[_name]_oversampling_ratio measurements
1554 is considered as one sample for <type>[_name]_sampling_frequency.
1555
1556What: /sys/bus/iio/devices/iio:deviceX/in_concentration_raw
1557What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_raw
1558What: /sys/bus/iio/devices/iio:deviceX/in_concentration_co2_raw
1559What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_co2_raw
1560What: /sys/bus/iio/devices/iio:deviceX/in_concentration_ethanol_raw
1561What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_ethanol_raw
1562What: /sys/bus/iio/devices/iio:deviceX/in_concentration_h2_raw
1563What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_h2_raw
1564What: /sys/bus/iio/devices/iio:deviceX/in_concentration_voc_raw
1565What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw
1566KernelVersion: 4.3
1567Contact: linux-iio@vger.kernel.org
1568Description:
1569 Raw (unscaled no offset etc.) percentage reading of a substance.
1570
1571What: /sys/bus/iio/devices/iio:deviceX/in_resistance_raw
1572What: /sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw
1573What: /sys/bus/iio/devices/iio:deviceX/out_resistance_raw
1574What: /sys/bus/iio/devices/iio:deviceX/out_resistanceX_raw
1575KernelVersion: 4.3
1576Contact: linux-iio@vger.kernel.org
1577Description:
1578 Raw (unscaled no offset etc.) resistance reading that can be processed
1579 into an ohm value.
1580
1581What: /sys/bus/iio/devices/iio:deviceX/heater_enable
1582KernelVersion: 4.1.0
1583Contact: linux-iio@vger.kernel.org
1584Description:
1585 '1' (enable) or '0' (disable) specifying the enable
1586 of heater function. Same reading values apply
1587 This ABI is especially applicable for humidity sensors
1588 to heatup the device and get rid of any condensation
1589 in some humidity environment
1590
1591What: /sys/bus/iio/devices/iio:deviceX/in_ph_raw
1592KernelVersion: 4.5
1593Contact: linux-iio@vger.kernel.org
1594Description:
1595 Raw (unscaled no offset etc.) pH reading of a substance as a negative
1596 base-10 logarithm of hydrodium ions in a litre of water.
1597
1598What: /sys/bus/iio/devices/iio:deviceX/mount_matrix
1599What: /sys/bus/iio/devices/iio:deviceX/in_mount_matrix
1600What: /sys/bus/iio/devices/iio:deviceX/out_mount_matrix
1601What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_mount_matrix
1602What: /sys/bus/iio/devices/iio:deviceX/in_accel_mount_matrix
1603KernelVersion: 4.6
1604Contact: linux-iio@vger.kernel.org
1605Description:
1606 Mounting matrix for IIO sensors. This is a rotation matrix which
1607 informs userspace about sensor chip's placement relative to the
1608 main hardware it is mounted on.
1609 Main hardware placement is defined according to the local
1610 reference frame related to the physical quantity the sensor
1611 measures.
1612 Given that the rotation matrix is defined in a board specific
1613 way (platform data and / or device-tree), the main hardware
1614 reference frame definition is left to the implementor's choice
1615 (see below for a magnetometer example).
1616 Applications should apply this rotation matrix to samples so
1617 that when main hardware reference frame is aligned onto local
1618 reference frame, then sensor chip reference frame is also
1619 perfectly aligned with it.
1620 Matrix is a 3x3 unitary matrix and typically looks like
1621 [0, 1, 0; 1, 0, 0; 0, 0, -1]. Identity matrix
1622 [1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and main hardware
1623 are perfectly aligned with each other.
1624
1625 For example, a mounting matrix for a magnetometer sensor informs
1626 userspace about sensor chip's ORIENTATION relative to the main
1627 hardware.
1628 More specifically, main hardware orientation is defined with
1629 respect to the LOCAL EARTH GEOMAGNETIC REFERENCE FRAME where :
1630 * Y is in the ground plane and positive towards magnetic North ;
1631 * X is in the ground plane, perpendicular to the North axis and
1632 positive towards the East ;
1633 * Z is perpendicular to the ground plane and positive upwards.
1634
1635 An implementor might consider that for a hand-held device, a
1636 'natural' orientation would be 'front facing camera at the top'.
1637 The main hardware reference frame could then be described as :
1638 * Y is in the plane of the screen and is positive towards the
1639 top of the screen ;
1640 * X is in the plane of the screen, perpendicular to Y axis, and
1641 positive towards the right hand side of the screen ;
1642 * Z is perpendicular to the screen plane and positive out of the
1643 screen.
1644 Another example for a quadrotor UAV might be :
1645 * Y is in the plane of the propellers and positive towards the
1646 front-view camera;
1647 * X is in the plane of the propellers, perpendicular to Y axis,
1648 and positive towards the starboard side of the UAV ;
1649 * Z is perpendicular to propellers plane and positive upwards.
1650
1651What: /sys/bus/iio/devices/iio:deviceX/in_electricalconductivity_raw
1652KernelVersion: 4.8
1653Contact: linux-iio@vger.kernel.org
1654Description:
1655 Raw (unscaled no offset etc.) electric conductivity reading that
1656 can be processed to siemens per meter.
1657
1658What: /sys/bus/iio/devices/iio:deviceX/in_countY_raw
1659KernelVersion: 4.10
1660Contact: linux-iio@vger.kernel.org
1661Description:
1662 This interface is deprecated; please use the Counter subsystem.
1663
1664 Raw counter device counts from channel Y. For quadrature
1665 counters, multiplication by an available [Y]_scale results in
1666 the counts of a single quadrature signal phase from channel Y.
1667
1668What: /sys/bus/iio/devices/iio:deviceX/in_indexY_raw
1669KernelVersion: 4.10
1670Contact: linux-iio@vger.kernel.org
1671Description:
1672 This interface is deprecated; please use the Counter subsystem.
1673
1674 Raw counter device index value from channel Y. This attribute
1675 provides an absolute positional reference (e.g. a pulse once per
1676 revolution) which may be used to home positional systems as
1677 required.
1678
1679What: /sys/bus/iio/devices/iio:deviceX/in_count_count_direction_available
1680KernelVersion: 4.12
1681Contact: linux-iio@vger.kernel.org
1682Description:
1683 This interface is deprecated; please use the Counter subsystem.
1684
1685 A list of possible counting directions which are:
1686 - "up" : counter device is increasing.
1687 - "down": counter device is decreasing.
1688
1689What: /sys/bus/iio/devices/iio:deviceX/in_countY_count_direction
1690KernelVersion: 4.12
1691Contact: linux-iio@vger.kernel.org
1692Description:
1693 This interface is deprecated; please use the Counter subsystem.
1694
1695 Raw counter device counters direction for channel Y.
1696
1697What: /sys/bus/iio/devices/iio:deviceX/in_phaseY_raw
1698KernelVersion: 4.18
1699Contact: linux-iio@vger.kernel.org
1700Description:
1701 Raw (unscaled) phase difference reading from channel Y
1702 that can be processed to radians.
1703
1704What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm1_input
1705What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm1_input
1706What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm2p5_input
1707What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm2p5_input
1708What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm4_input
1709What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm4_input
1710What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm10_input
1711What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm10_input
1712KernelVersion: 4.22
1713Contact: linux-iio@vger.kernel.org
1714Description:
1715 Mass concentration reading of particulate matter in ug / m3.
1716 pmX consists of particles with aerodynamic diameter less or
1717 equal to X micrometers.