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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 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/sampling_frequency
36What: /sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency
37What: /sys/bus/iio/devices/triggerX/sampling_frequency
38KernelVersion: 2.6.35
39Contact: linux-iio@vger.kernel.org
40Description:
41 Some devices have internal clocks. This parameter sets the
42 resulting sampling frequency. In many devices this
43 parameter has an effect on input filters etc. rather than
44 simply controlling when the input is sampled. As this
45 effects data ready triggers, hardware buffers and the sysfs
46 direct access interfaces, it may be found in any of the
47 relevant directories. If it effects all of the above
48 then it is to be found in the base device directory.
49
50What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available
51What: /sys/.../iio:deviceX/buffer/sampling_frequency_available
52What: /sys/bus/iio/devices/triggerX/sampling_frequency_available
53KernelVersion: 2.6.35
54Contact: linux-iio@vger.kernel.org
55Description:
56 When the internal sampling clock can only take a small
57 discrete set of values, this file lists those available.
58
59What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio
60KernelVersion: 2.6.38
61Contact: linux-iio@vger.kernel.org
62Description:
63 Hardware dependent ADC oversampling. Controls the sampling ratio
64 of the digital filter if available.
65
66What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available
67KernelVersion: 2.6.38
68Contact: linux-iio@vger.kernel.org
69Description:
70 Hardware dependent values supported by the oversampling filter.
71
72What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_raw
73What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw
74KernelVersion: 2.6.35
75Contact: linux-iio@vger.kernel.org
76Description:
77 Raw (unscaled no bias removal etc.) voltage measurement from
78 channel Y. In special cases where the channel does not
79 correspond to externally available input one of the named
80 versions may be used. The number must always be specified and
81 unique to allow association with event codes. Units after
82 application of scale and offset are millivolts.
83
84What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw
85KernelVersion: 2.6.35
86Contact: linux-iio@vger.kernel.org
87Description:
88 Raw (unscaled) differential voltage measurement equivalent to
89 channel Y - channel Z where these channel numbers apply to the
90 physically equivalent inputs when non differential readings are
91 separately available. In differential only parts, then all that
92 is required is a consistent labeling. Units after application
93 of scale and offset are millivolts.
94
95What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
96KernelVersion: 3.2
97Contact: linux-iio@vger.kernel.org
98Description:
99 Raw capacitance measurement from channel Y. Units after
100 application of scale and offset are nanofarads.
101
102What: /sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw
103KernelVersion: 3.2
104Contact: linux-iio@vger.kernel.org
105Description:
106 Raw differential capacitance 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 nanofarads.
112
113What: /sys/bus/iio/devices/iio:deviceX/in_temp_raw
114What: /sys/bus/iio/devices/iio:deviceX/in_tempX_raw
115What: /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
116What: /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw
117What: /sys/bus/iio/devices/iio:deviceX/in_temp_z_raw
118KernelVersion: 2.6.35
119Contact: linux-iio@vger.kernel.org
120Description:
121 Raw (unscaled no bias removal etc.) temperature measurement.
122 If an axis is specified it generally means that the temperature
123 sensor is associated with one part of a compound device (e.g.
124 a gyroscope axis). Units after application of scale and offset
125 are milli degrees Celsius.
126
127What: /sys/bus/iio/devices/iio:deviceX/in_tempX_input
128KernelVersion: 2.6.38
129Contact: linux-iio@vger.kernel.org
130Description:
131 Scaled temperature measurement in milli degrees Celsius.
132
133What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw
134What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw
135What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw
136KernelVersion: 2.6.35
137Contact: linux-iio@vger.kernel.org
138Description:
139 Acceleration in direction x, y or z (may be arbitrarily assigned
140 but should match other such assignments on device).
141 Has all of the equivalent parameters as per voltageY. Units
142 after application of scale and offset are m/s^2.
143
144What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
145What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
146What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
147KernelVersion: 2.6.35
148Contact: linux-iio@vger.kernel.org
149Description:
150 Angular velocity about axis x, y or z (may be arbitrarily
151 assigned). Has all the equivalent parameters as per voltageY.
152 Units after application of scale and offset are radians per
153 second.
154
155What: /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw
156What: /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw
157What: /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw
158KernelVersion: 2.6.35
159Contact: linux-iio@vger.kernel.org
160Description:
161 Inclination raw reading about axis x, y or z (may be
162 arbitrarily assigned). Data converted by application of offset
163 and scale to degrees.
164
165What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw
166What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw
167What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw
168KernelVersion: 2.6.35
169Contact: linux-iio@vger.kernel.org
170Description:
171 Magnetic field along axis x, y or z (may be arbitrarily
172 assigned). Data converted by application of offset
173 then scale to Gauss.
174
175What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
176What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
177What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
178KernelVersion: 2.6.36
179Contact: linux-iio@vger.kernel.org
180Description:
181 Highest value since some reset condition. These
182 attributes allow access to this and are otherwise
183 the direct equivalent of the <type>Y[_name]_raw attributes.
184
185What: /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw
186KernelVersion: 2.6.36
187Contact: linux-iio@vger.kernel.org
188Description:
189 A computed peak value based on the sum squared magnitude of
190 the underlying value in the specified directions.
191
192What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_raw
193What: /sys/bus/iio/devices/iio:deviceX/in_pressure_raw
194KernelVersion: 3.8
195Contact: linux-iio@vger.kernel.org
196Description:
197 Raw pressure measurement from channel Y. Units after
198 application of scale and offset are kilopascal.
199
200What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw
201KernelVersion: 3.14
202Contact: linux-iio@vger.kernel.org
203Description:
204 Raw humidity measurement of air. Units after application of
205 scale and offset are milli percent.
206
207What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input
208KernelVersion: 3.14
209Contact: linux-iio@vger.kernel.org
210Description:
211 Scaled humidity measurement in milli percent.
212
213What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset
214What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
215What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
216What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
217What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
218What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset
219What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset
220What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset
221What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
222What: /sys/bus/iio/devices/iio:deviceX/in_pressure_offset
223KernelVersion: 2.6.35
224Contact: linux-iio@vger.kernel.org
225Description:
226 If known for a device, offset to be added to <type>[Y]_raw prior
227 to scaling by <type>[Y]_scale in order to obtain value in the
228 <type> units as specified in <type>[Y]_raw documentation.
229 Not present if the offset is always 0 or unknown. If Y or
230 axis <x|y|z> is not present, then the offset applies to all
231 in channels of <type>.
232 May be writable if a variable offset can be applied on the
233 device. Note that this is different to calibbias which
234 is for devices (or drivers) that apply offsets to compensate
235 for variation between different instances of the part, typically
236 adjusted by using some hardware supported calibration procedure.
237 Calibbias is applied internally, offset is applied in userspace
238 to the _raw output.
239
240What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
241What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
242What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale
243What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
244What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
245What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale
246What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
247What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
248What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale
249What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
250What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
251What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
252What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale
253What: /sys/bus/iio/devices/iio:deviceX/in_pressure_scale
254KernelVersion: 2.6.35
255Contact: linux-iio@vger.kernel.org
256Description:
257 If known for a device, scale to be applied to <type>Y[_name]_raw
258 post addition of <type>[Y][_name]_offset in order to obtain the
259 measured value in <type> units as specified in
260 <type>[Y][_name]_raw documentation. If shared across all in
261 channels then Y and <x|y|z> are not present and the value is
262 called <type>[Y][_name]_scale. The peak modifier means this
263 value is applied to <type>Y[_name]_peak_raw values.
264
265What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
266What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
267What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
268What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
269What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
270What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
271What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
272What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
273What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
274What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias
275KernelVersion: 2.6.35
276Contact: linux-iio@vger.kernel.org
277Description:
278 Hardware applied calibration offset (assumed to fix production
279 inaccuracies).
280
281What /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
282What /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
283What /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
284What /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
285What /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
286What /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
287What /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
288What /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
289What /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
290what /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
291what /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
292What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
293What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
294KernelVersion: 2.6.35
295Contact: linux-iio@vger.kernel.org
296Description:
297 Hardware applied calibration scale factor (assumed to fix
298 production inaccuracies). If shared across all channels,
299 <type>_calibscale is used.
300
301What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
302What: /sys/.../iio:deviceX/in_voltageX_scale_available
303What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available
304What: /sys/.../iio:deviceX/out_voltageX_scale_available
305What: /sys/.../iio:deviceX/out_altvoltageX_scale_available
306What: /sys/.../iio:deviceX/in_capacitance_scale_available
307What: /sys/.../iio:deviceX/in_pressure_scale_available
308What: /sys/.../iio:deviceX/in_pressureY_scale_available
309KernelVersion: 2.6.35
310Contact: linux-iio@vger.kernel.org
311Description:
312 If a discrete set of scale values is available, they
313 are listed in this attribute.
314
315What /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
316KernelVersion: 2.6.35
317Contact: linux-iio@vger.kernel.org
318Description:
319 Hardware applied gain factor. If shared across all channels,
320 <type>_hardwaregain is used.
321
322What: /sys/.../in_accel_filter_low_pass_3db_frequency
323What: /sys/.../in_magn_filter_low_pass_3db_frequency
324What: /sys/.../in_anglvel_filter_low_pass_3db_frequency
325KernelVersion: 3.2
326Contact: linux-iio@vger.kernel.org
327Description:
328 If a known or controllable low pass filter is applied
329 to the underlying data channel, then this parameter
330 gives the 3dB frequency of the filter in Hz.
331
332What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
333What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
334KernelVersion: 2.6.37
335Contact: linux-iio@vger.kernel.org
336Description:
337 Raw (unscaled, no bias etc.) output voltage for
338 channel Y. The number must always be specified and
339 unique if the output corresponds to a single channel.
340 While DAC like devices typically use out_voltage,
341 a continuous frequency generating device, such as
342 a DDS or PLL should use out_altvoltage.
343
344What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
345What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
346KernelVersion: 2.6.37
347Contact: linux-iio@vger.kernel.org
348Description:
349 Raw (unscaled, no bias etc.) output voltage for an aggregate of
350 channel Y, channel Z, etc. This interface is available in cases
351 where a single output sets the value for multiple channels
352 simultaneously.
353
354What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
355What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
356What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
357What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
358KernelVersion: 2.6.38
359Contact: linux-iio@vger.kernel.org
360Description:
361 Specifies the output powerdown mode.
362 DAC output stage is disconnected from the amplifier and
363 1kohm_to_gnd: connected to ground via an 1kOhm resistor,
364 6kohm_to_gnd: connected to ground via a 6kOhm resistor,
365 20kohm_to_gnd: connected to ground via a 20kOhm resistor,
366 100kohm_to_gnd: connected to ground via an 100kOhm resistor,
367 500kohm_to_gnd: connected to ground via a 500kOhm resistor,
368 three_state: left floating.
369 For a list of available output power down options read
370 outX_powerdown_mode_available. If Y is not present the
371 mode is shared across all outputs.
372
373What: /sys/.../iio:deviceX/out_votlageY_powerdown_mode_available
374What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available
375What: /sys/.../iio:deviceX/out_altvotlageY_powerdown_mode_available
376What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
377KernelVersion: 2.6.38
378Contact: linux-iio@vger.kernel.org
379Description:
380 Lists all available output power down modes.
381 If Y is not present the mode is shared across all outputs.
382
383What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
384What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
385What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
386What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
387KernelVersion: 2.6.38
388Contact: linux-iio@vger.kernel.org
389Description:
390 Writing 1 causes output Y to enter the power down mode specified
391 by the corresponding outY_powerdown_mode. DAC output stage is
392 disconnected from the amplifier. Clearing returns to normal
393 operation. Y may be suppressed if all outputs are controlled
394 together.
395
396What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
397KernelVersion: 3.4.0
398Contact: linux-iio@vger.kernel.org
399Description:
400 Output frequency for channel Y in Hz. The number must always be
401 specified and unique if the output corresponds to a single
402 channel.
403
404What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
405KernelVersion: 3.4.0
406Contact: linux-iio@vger.kernel.org
407Description:
408 Phase in radians of one frequency/clock output Y
409 (out_altvoltageY) relative to another frequency/clock output
410 (out_altvoltageZ) of the device X. The number must always be
411 specified and unique if the output corresponds to a single
412 channel.
413
414What: /sys/bus/iio/devices/iio:deviceX/events
415KernelVersion: 2.6.35
416Contact: linux-iio@vger.kernel.org
417Description:
418 Configuration of which hardware generated events are passed up
419 to user-space.
420
421What: /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en
422What: /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en
423What: /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en
424What: /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en
425What: /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en
426What: /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en
427What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en
428What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en
429What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en
430What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en
431What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en
432What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en
433What: /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en
434What: /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en
435What: /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en
436What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en
437What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en
438What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en
439What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en
440What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en
441What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en
442What: /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
443What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
444What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
445KernelVersion: 2.6.37
446Contact: linux-iio@vger.kernel.org
447Description:
448 Event generated when channel passes a threshold in the specified
449 (_rising|_falling) direction. If the direction is not specified,
450 then either the device will report an event which ever direction
451 a single threshold value is passed in (e.g.
452 <type>[Y][_name]_<raw|input>_thresh_value) or
453 <type>[Y][_name]_<raw|input>_thresh_rising_value and
454 <type>[Y][_name]_<raw|input>_thresh_falling_value may take
455 different values, but the device can only enable both thresholds
456 or neither.
457 Note the driver will assume the last p events requested are
458 to be enabled where p is how many it supports (which may vary
459 depending on the exact set requested. So if you want to be
460 sure you have set what you think you have, check the contents of
461 these attributes after everything is configured. Drivers may
462 have to buffer any parameters so that they are consistent when
463 a given event type is enabled at a future point (and not those for
464 whatever event was previously enabled).
465
466What: /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en
467What: /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en
468What: /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
469What: /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
470What: /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
471What: /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
472What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
473What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
474What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
475What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en
476What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en
477What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en
478What: /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en
479What: /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en
480What: /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en
481What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en
482What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en
483What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en
484What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en
485What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en
486What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en
487What: /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en
488What: /sys/.../iio:deviceX/events/in_tempY_roc_rising_en
489What: /sys/.../iio:deviceX/events/in_tempY_roc_falling_en
490KernelVersion: 2.6.37
491Contact: linux-iio@vger.kernel.org
492Description:
493 Event generated when channel passes a threshold on the rate of
494 change (1st differential) in the specified (_rising|_falling)
495 direction. If the direction is not specified, then either the
496 device will report an event which ever direction a single
497 threshold value is passed in (e.g.
498 <type>[Y][_name]_<raw|input>_roc_value) or
499 <type>[Y][_name]_<raw|input>_roc_rising_value and
500 <type>[Y][_name]_<raw|input>_roc_falling_value may take
501 different values, but the device can only enable both rate of
502 change thresholds or neither.
503 Note the driver will assume the last p events requested are
504 to be enabled where p is however many it supports (which may
505 vary depending on the exact set requested. So if you want to be
506 sure you have set what you think you have, check the contents of
507 these attributes after everything is configured. Drivers may
508 have to buffer any parameters so that they are consistent when
509 a given event type is enabled a future point (and not those for
510 whatever event was previously enabled).
511
512What: /sys/.../events/in_accel_x_raw_thresh_rising_value
513What: /sys/.../events/in_accel_x_raw_thresh_falling_value
514What: /sys/.../events/in_accel_y_raw_thresh_rising_value
515What: /sys/.../events/in_accel_y_raw_thresh_falling_value
516What: /sys/.../events/in_accel_z_raw_thresh_rising_value
517What: /sys/.../events/in_accel_z_raw_thresh_falling_value
518What: /sys/.../events/in_anglvel_x_raw_thresh_rising_value
519What: /sys/.../events/in_anglvel_x_raw_thresh_falling_value
520What: /sys/.../events/in_anglvel_y_raw_thresh_rising_value
521What: /sys/.../events/in_anglvel_y_raw_thresh_falling_value
522What: /sys/.../events/in_anglvel_z_raw_thresh_rising_value
523What: /sys/.../events/in_anglvel_z_raw_thresh_falling_value
524What: /sys/.../events/in_magn_x_raw_thresh_rising_value
525What: /sys/.../events/in_magn_x_raw_thresh_falling_value
526What: /sys/.../events/in_magn_y_raw_thresh_rising_value
527What: /sys/.../events/in_magn_y_raw_thresh_falling_value
528What: /sys/.../events/in_magn_z_raw_thresh_rising_value
529What: /sys/.../events/in_magn_z_raw_thresh_falling_value
530What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value
531What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value
532What: /sys/.../events/in_voltageY_raw_thresh_rising_value
533What: /sys/.../events/in_voltageY_raw_thresh_falling_value
534What: /sys/.../events/in_tempY_raw_thresh_rising_value
535What: /sys/.../events/in_tempY_raw_thresh_falling_value
536What: /sys/.../events/in_illuminance0_thresh_falling_value
537what: /sys/.../events/in_illuminance0_thresh_rising_value
538what: /sys/.../events/in_proximity0_thresh_falling_value
539what: /sys/.../events/in_proximity0_thresh_rising_value
540KernelVersion: 2.6.37
541Contact: linux-iio@vger.kernel.org
542Description:
543 Specifies the value of threshold that the device is comparing
544 against for the events enabled by
545 <type>Y[_name]_thresh[_rising|falling]_en.
546 If separate attributes exist for the two directions, but
547 direction is not specified for this attribute, then a single
548 threshold value applies to both directions.
549 The raw or input element of the name indicates whether the
550 value is in raw device units or in processed units (as _raw
551 and _input do on sysfs direct channel read attributes).
552
553What: /sys/.../events/in_accel_x_thresh_rising_hysteresis
554What: /sys/.../events/in_accel_x_thresh_falling_hysteresis
555What: /sys/.../events/in_accel_x_thresh_either_hysteresis
556What: /sys/.../events/in_accel_y_thresh_rising_hysteresis
557What: /sys/.../events/in_accel_y_thresh_falling_hysteresis
558What: /sys/.../events/in_accel_y_thresh_either_hysteresis
559What: /sys/.../events/in_accel_z_thresh_rising_hysteresis
560What: /sys/.../events/in_accel_z_thresh_falling_hysteresis
561What: /sys/.../events/in_accel_z_thresh_either_hysteresis
562What: /sys/.../events/in_anglvel_x_thresh_rising_hysteresis
563What: /sys/.../events/in_anglvel_x_thresh_falling_hysteresis
564What: /sys/.../events/in_anglvel_x_thresh_either_hysteresis
565What: /sys/.../events/in_anglvel_y_thresh_rising_hysteresis
566What: /sys/.../events/in_anglvel_y_thresh_falling_hysteresis
567What: /sys/.../events/in_anglvel_y_thresh_either_hysteresis
568What: /sys/.../events/in_anglvel_z_thresh_rising_hysteresis
569What: /sys/.../events/in_anglvel_z_thresh_falling_hysteresis
570What: /sys/.../events/in_anglvel_z_thresh_either_hysteresis
571What: /sys/.../events/in_magn_x_thresh_rising_hysteresis
572What: /sys/.../events/in_magn_x_thresh_falling_hysteresis
573What: /sys/.../events/in_magn_x_thresh_either_hysteresis
574What: /sys/.../events/in_magn_y_thresh_rising_hysteresis
575What: /sys/.../events/in_magn_y_thresh_falling_hysteresis
576What: /sys/.../events/in_magn_y_thresh_either_hysteresis
577What: /sys/.../events/in_magn_z_thresh_rising_hysteresis
578What: /sys/.../events/in_magn_z_thresh_falling_hysteresis
579What: /sys/.../events/in_magn_z_thresh_either_hysteresis
580What: /sys/.../events/in_voltageY_thresh_rising_hysteresis
581What: /sys/.../events/in_voltageY_thresh_falling_hysteresis
582What: /sys/.../events/in_voltageY_thresh_either_hysteresis
583What: /sys/.../events/in_tempY_thresh_rising_hysteresis
584What: /sys/.../events/in_tempY_thresh_falling_hysteresis
585What: /sys/.../events/in_tempY_thresh_either_hysteresis
586What: /sys/.../events/in_illuminance0_thresh_falling_hysteresis
587what: /sys/.../events/in_illuminance0_thresh_rising_hysteresis
588what: /sys/.../events/in_illuminance0_thresh_either_hysteresis
589what: /sys/.../events/in_proximity0_thresh_falling_hysteresis
590what: /sys/.../events/in_proximity0_thresh_rising_hysteresis
591what: /sys/.../events/in_proximity0_thresh_either_hysteresis
592KernelVersion: 3.13
593Contact: linux-iio@vger.kernel.org
594Description:
595 Specifies the hysteresis of threshold that the device is comparing
596 against for the events enabled by
597 <type>Y[_name]_thresh[_(rising|falling)]_hysteresis.
598 If separate attributes exist for the two directions, but
599 direction is not specified for this attribute, then a single
600 hysteresis value applies to both directions.
601 For falling events the hysteresis is added to the _value attribute for
602 this event to get the upper threshold for when the event goes back to
603 normal, for rising events the hysteresis is subtracted from the _value
604 attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200
605 and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event
606 will get activated once in_voltage0_raw goes above 1200 and will become
607 deactived again once the value falls below 1150.
608
609What: /sys/.../events/in_accel_x_raw_roc_rising_value
610What: /sys/.../events/in_accel_x_raw_roc_falling_value
611What: /sys/.../events/in_accel_y_raw_roc_rising_value
612What: /sys/.../events/in_accel_y_raw_roc_falling_value
613What: /sys/.../events/in_accel_z_raw_roc_rising_value
614What: /sys/.../events/in_accel_z_raw_roc_falling_value
615What: /sys/.../events/in_anglvel_x_raw_roc_rising_value
616What: /sys/.../events/in_anglvel_x_raw_roc_falling_value
617What: /sys/.../events/in_anglvel_y_raw_roc_rising_value
618What: /sys/.../events/in_anglvel_y_raw_roc_falling_value
619What: /sys/.../events/in_anglvel_z_raw_roc_rising_value
620What: /sys/.../events/in_anglvel_z_raw_roc_falling_value
621What: /sys/.../events/in_magn_x_raw_roc_rising_value
622What: /sys/.../events/in_magn_x_raw_roc_falling_value
623What: /sys/.../events/in_magn_y_raw_roc_rising_value
624What: /sys/.../events/in_magn_y_raw_roc_falling_value
625What: /sys/.../events/in_magn_z_raw_roc_rising_value
626What: /sys/.../events/in_magn_z_raw_roc_falling_value
627What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value
628What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value
629What: /sys/.../events/in_voltageY_raw_roc_rising_value
630What: /sys/.../events/in_voltageY_raw_roc_falling_value
631What: /sys/.../events/in_tempY_raw_roc_rising_value
632What: /sys/.../events/in_tempY_raw_roc_falling_value
633KernelVersion: 2.6.37
634Contact: linux-iio@vger.kernel.org
635Description:
636 Specifies the value of rate of change threshold that the
637 device is comparing against for the events enabled by
638 <type>[Y][_name]_roc[_rising|falling]_en.
639 If separate attributes exist for the two directions,
640 but direction is not specified for this attribute,
641 then a single threshold value applies to both directions.
642 The raw or input element of the name indicates whether the
643 value is in raw device units or in processed units (as _raw
644 and _input do on sysfs direct channel read attributes).
645
646What: /sys/.../events/in_accel_x_thresh_rising_period
647What: /sys/.../events/in_accel_x_thresh_falling_period
648hat: /sys/.../events/in_accel_x_roc_rising_period
649What: /sys/.../events/in_accel_x_roc_falling_period
650What: /sys/.../events/in_accel_y_thresh_rising_period
651What: /sys/.../events/in_accel_y_thresh_falling_period
652What: /sys/.../events/in_accel_y_roc_rising_period
653What: /sys/.../events/in_accel_y_roc_falling_period
654What: /sys/.../events/in_accel_z_thresh_rising_period
655What: /sys/.../events/in_accel_z_thresh_falling_period
656What: /sys/.../events/in_accel_z_roc_rising_period
657What: /sys/.../events/in_accel_z_roc_falling_period
658What: /sys/.../events/in_anglvel_x_thresh_rising_period
659What: /sys/.../events/in_anglvel_x_thresh_falling_period
660What: /sys/.../events/in_anglvel_x_roc_rising_period
661What: /sys/.../events/in_anglvel_x_roc_falling_period
662What: /sys/.../events/in_anglvel_y_thresh_rising_period
663What: /sys/.../events/in_anglvel_y_thresh_falling_period
664What: /sys/.../events/in_anglvel_y_roc_rising_period
665What: /sys/.../events/in_anglvel_y_roc_falling_period
666What: /sys/.../events/in_anglvel_z_thresh_rising_period
667What: /sys/.../events/in_anglvel_z_thresh_falling_period
668What: /sys/.../events/in_anglvel_z_roc_rising_period
669What: /sys/.../events/in_anglvel_z_roc_falling_period
670What: /sys/.../events/in_magn_x_thresh_rising_period
671What: /sys/.../events/in_magn_x_thresh_falling_period
672What: /sys/.../events/in_magn_x_roc_rising_period
673What: /sys/.../events/in_magn_x_roc_falling_period
674What: /sys/.../events/in_magn_y_thresh_rising_period
675What: /sys/.../events/in_magn_y_thresh_falling_period
676What: /sys/.../events/in_magn_y_roc_rising_period
677What: /sys/.../events/in_magn_y_roc_falling_period
678What: /sys/.../events/in_magn_z_thresh_rising_period
679What: /sys/.../events/in_magn_z_thresh_falling_period
680What: /sys/.../events/in_magn_z_roc_rising_period
681What: /sys/.../events/in_magn_z_roc_falling_period
682What: /sys/.../events/in_voltageY_supply_thresh_rising_period
683What: /sys/.../events/in_voltageY_supply_thresh_falling_period
684What: /sys/.../events/in_voltageY_supply_roc_rising_period
685What: /sys/.../events/in_voltageY_supply_roc_falling_period
686What: /sys/.../events/in_voltageY_thresh_rising_period
687What: /sys/.../events/in_voltageY_thresh_falling_period
688What: /sys/.../events/in_voltageY_roc_rising_period
689What: /sys/.../events/in_voltageY_roc_falling_period
690What: /sys/.../events/in_tempY_thresh_rising_period
691What: /sys/.../events/in_tempY_thresh_falling_period
692What: /sys/.../events/in_tempY_roc_rising_period
693What: /sys/.../events/in_tempY_roc_falling_period
694What: /sys/.../events/in_accel_x&y&z_mag_falling_period
695What: /sys/.../events/in_intensity0_thresh_period
696What: /sys/.../events/in_proximity0_thresh_period
697KernelVersion: 2.6.37
698Contact: linux-iio@vger.kernel.org
699Description:
700 Period of time (in seconds) for which the condition must be
701 met before an event is generated. If direction is not
702 specified then this period applies to both directions.
703
704What: /sys/.../iio:deviceX/events/in_accel_mag_en
705What: /sys/.../iio:deviceX/events/in_accel_mag_rising_en
706What: /sys/.../iio:deviceX/events/in_accel_mag_falling_en
707What: /sys/.../iio:deviceX/events/in_accel_x_mag_en
708What: /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en
709What: /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en
710What: /sys/.../iio:deviceX/events/in_accel_y_mag_en
711What: /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en
712What: /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en
713What: /sys/.../iio:deviceX/events/in_accel_z_mag_en
714What: /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en
715What: /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en
716What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en
717What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en
718KernelVersion: 2.6.37
719Contact: linux-iio@vger.kernel.org
720Description:
721 Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
722 magnitude of the channel is compared to the threshold, not its
723 signed value.
724
725What: /sys/.../events/in_accel_raw_mag_value
726What: /sys/.../events/in_accel_x_raw_mag_rising_value
727What: /sys/.../events/in_accel_y_raw_mag_rising_value
728What: /sys/.../events/in_accel_z_raw_mag_rising_value
729KernelVersion: 2.6.37
730Contact: linux-iio@vger.kernel.org
731Description:
732 The value to which the magnitude of the channel is compared. If
733 number or direction is not specified, applies to all channels of
734 this type.
735
736What: /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger
737KernelVersion: 2.6.35
738Contact: linux-iio@vger.kernel.org
739Description:
740 The name of the trigger source being used, as per string given
741 in /sys/class/iio/triggerY/name.
742
743What: /sys/bus/iio/devices/iio:deviceX/buffer/length
744KernelVersion: 2.6.35
745Contact: linux-iio@vger.kernel.org
746Description:
747 Number of scans contained by the buffer.
748
749What: /sys/bus/iio/devices/iio:deviceX/buffer/bytes_per_datum
750KernelVersion: 2.6.37
751Contact: linux-iio@vger.kernel.org
752Description:
753 Bytes per scan. Due to alignment fun, the scan may be larger
754 than implied directly by the scan_element parameters.
755
756What: /sys/bus/iio/devices/iio:deviceX/buffer/enable
757KernelVersion: 2.6.35
758Contact: linux-iio@vger.kernel.org
759Description:
760 Actually start the buffer capture up. Will start trigger
761 if first device and appropriate.
762
763What: /sys/bus/iio/devices/iio:deviceX/scan_elements
764KernelVersion: 2.6.37
765Contact: linux-iio@vger.kernel.org
766Description:
767 Directory containing interfaces for elements that will be
768 captured for a single triggered sample set in the buffer.
769
770What: /sys/.../iio:deviceX/scan_elements/in_accel_x_en
771What: /sys/.../iio:deviceX/scan_elements/in_accel_y_en
772What: /sys/.../iio:deviceX/scan_elements/in_accel_z_en
773What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_en
774What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_en
775What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_en
776What: /sys/.../iio:deviceX/scan_elements/in_magn_x_en
777What: /sys/.../iio:deviceX/scan_elements/in_magn_y_en
778What: /sys/.../iio:deviceX/scan_elements/in_magn_z_en
779What: /sys/.../iio:deviceX/scan_elements/in_timestamp_en
780What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en
781What: /sys/.../iio:deviceX/scan_elements/in_voltageY_en
782What: /sys/.../iio:deviceX/scan_elements/in_voltageY-voltageZ_en
783What: /sys/.../iio:deviceX/scan_elements/in_incli_x_en
784What: /sys/.../iio:deviceX/scan_elements/in_incli_y_en
785What: /sys/.../iio:deviceX/scan_elements/in_pressureY_en
786What: /sys/.../iio:deviceX/scan_elements/in_pressure_en
787KernelVersion: 2.6.37
788Contact: linux-iio@vger.kernel.org
789Description:
790 Scan element control for triggered data capture.
791
792What: /sys/.../iio:deviceX/scan_elements/in_accel_type
793What: /sys/.../iio:deviceX/scan_elements/in_anglvel_type
794What: /sys/.../iio:deviceX/scan_elements/in_magn_type
795What: /sys/.../iio:deviceX/scan_elements/in_incli_type
796What: /sys/.../iio:deviceX/scan_elements/in_voltageY_type
797What: /sys/.../iio:deviceX/scan_elements/in_voltage_type
798What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_type
799What: /sys/.../iio:deviceX/scan_elements/in_timestamp_type
800What: /sys/.../iio:deviceX/scan_elements/in_pressureY_type
801What: /sys/.../iio:deviceX/scan_elements/in_pressure_type
802KernelVersion: 2.6.37
803Contact: linux-iio@vger.kernel.org
804Description:
805 Description of the scan element data storage within the buffer
806 and hence the form in which it is read from user-space.
807 Form is [be|le]:[s|u]bits/storagebits[>>shift].
808 be or le specifies big or little endian. s or u specifies if
809 signed (2's complement) or unsigned. bits is the number of bits
810 of data and storagebits is the space (after padding) that it
811 occupies in the buffer. shift if specified, is the shift that
812 needs to be applied prior to masking out unused bits. Some
813 devices put their data in the middle of the transferred elements
814 with additional information on both sides. Note that some
815 devices will have additional information in the unused bits
816 so to get a clean value, the bits value must be used to mask
817 the buffer output value appropriately. The storagebits value
818 also specifies the data alignment. So s48/64>>2 will be a
819 signed 48 bit integer stored in a 64 bit location aligned to
820 a 64 bit boundary. To obtain the clean value, shift right 2
821 and apply a mask to zero the top 16 bits of the result.
822 For other storage combinations this attribute will be extended
823 appropriately.
824
825What: /sys/.../iio:deviceX/scan_elements/in_accel_type_available
826KernelVersion: 2.6.37
827Contact: linux-iio@vger.kernel.org
828Description:
829 If the type parameter can take one of a small set of values,
830 this attribute lists them.
831
832What: /sys/.../iio:deviceX/scan_elements/in_voltageY_index
833What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_index
834What: /sys/.../iio:deviceX/scan_elements/in_accel_x_index
835What: /sys/.../iio:deviceX/scan_elements/in_accel_y_index
836What: /sys/.../iio:deviceX/scan_elements/in_accel_z_index
837What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_index
838What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_index
839What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_index
840What: /sys/.../iio:deviceX/scan_elements/in_magn_x_index
841What: /sys/.../iio:deviceX/scan_elements/in_magn_y_index
842What: /sys/.../iio:deviceX/scan_elements/in_magn_z_index
843What: /sys/.../iio:deviceX/scan_elements/in_incli_x_index
844What: /sys/.../iio:deviceX/scan_elements/in_incli_y_index
845What: /sys/.../iio:deviceX/scan_elements/in_timestamp_index
846What: /sys/.../iio:deviceX/scan_elements/in_pressureY_index
847What: /sys/.../iio:deviceX/scan_elements/in_pressure_index
848KernelVersion: 2.6.37
849Contact: linux-iio@vger.kernel.org
850Description:
851 A single positive integer specifying the position of this
852 scan element in the buffer. Note these are not dependent on
853 what is enabled and may not be contiguous. Thus for user-space
854 to establish the full layout these must be used in conjunction
855 with all _en attributes to establish which channels are present,
856 and the relevant _type attributes to establish the data storage
857 format.
858
859What: /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw
860KernelVersion: 2.6.38
861Contact: linux-iio@vger.kernel.org
862Description:
863 This attribute is used to read the amount of quadrature error
864 present in the device at a given time.
865
866What: /sys/.../iio:deviceX/in_accelX_power_mode
867KernelVersion: 3.11
868Contact: linux-iio@vger.kernel.org
869Description:
870 Specifies the chip power mode.
871 low_noise: reduce noise level from ADC,
872 low_power: enable low current consumption.
873 For a list of available output power modes read
874 in_accel_power_mode_available.
875
876What: /sys/bus/iio/devices/iio:deviceX/store_eeprom
877KernelVersion: 3.4.0
878Contact: linux-iio@vger.kernel.org
879Description:
880 Writing '1' stores the current device configuration into
881 on-chip EEPROM. After power-up or chip reset the device will
882 automatically load the saved configuration.
883
884What: /sys/.../iio:deviceX/in_intensity_red_integration_time
885What: /sys/.../iio:deviceX/in_intensity_green_integration_time
886What: /sys/.../iio:deviceX/in_intensity_blue_integration_time
887What: /sys/.../iio:deviceX/in_intensity_clear_integration_time
888What: /sys/.../iio:deviceX/in_illuminance_integration_time
889KernelVersion: 3.12
890Contact: linux-iio@vger.kernel.org
891Description:
892 This attribute is used to get/set the integration time in
893 seconds.