1What:		/sys/class/leds/<led>/brightness
 2Date:		March 2006
 3KernelVersion:	2.6.17
 4Contact:	Richard Purdie <rpurdie@rpsys.net>
 5Description:
 6		Set the brightness of the LED. Most LEDs don't
 7		have hardware brightness support so will just be turned on for
 8		non-zero brightness settings. The value is between 0 and
 9		/sys/class/leds/<led>/max_brightness.
10
 
 
 
 
 
11What:		/sys/class/leds/<led>/max_brightness
12Date:		March 2006
13KernelVersion:	2.6.17
14Contact:	Richard Purdie <rpurdie@rpsys.net>
15Description:
16		Maximum brightness level for this led, default is 255 (LED_FULL).
 
 
 
17
18What:		/sys/class/leds/<led>/trigger
19Date:		March 2006
20KernelVersion:	2.6.17
21Contact:	Richard Purdie <rpurdie@rpsys.net>
22Description:
23		Set the trigger for this LED. A trigger is a kernel based source
24		of led events.
25		You can change triggers in a similar manner to the way an IO
26		scheduler is chosen. Trigger specific parameters can appear in
27		/sys/class/leds/<led> once a given trigger is selected.
 
28
29What:		/sys/class/leds/<led>/inverted
30Date:		January 2011
31KernelVersion:	2.6.38
32Contact:	Richard Purdie <rpurdie@rpsys.net>
33Description:
34		Invert the LED on/off state. This parameter is specific to
35		gpio and backlight triggers. In case of the backlight trigger,
36		it is useful when driving a LED which is intended to indicate
37		a device in a standby like state.

 1What:		/sys/class/leds/<led>/brightness
 2Date:		March 2006
 3KernelVersion:	2.6.17
 4Contact:	Richard Purdie <rpurdie@rpsys.net>
 5Description:
 6		Set the brightness of the LED. Most LEDs don't
 7		have hardware brightness support, so will just be turned on for
 8		non-zero brightness settings. The value is between 0 and
 9		/sys/class/leds/<led>/max_brightness.
10
11		Writing 0 to this file clears active trigger.
12
13		Writing non-zero to this file while trigger is active changes the
14		top brightness trigger is going to use.
15
16What:		/sys/class/leds/<led>/max_brightness
17Date:		March 2006
18KernelVersion:	2.6.17
19Contact:	Richard Purdie <rpurdie@rpsys.net>
20Description:
21		Maximum brightness level for this LED, default is 255 (LED_FULL).
22
23		If the LED does not support different brightness levels, this
24		should be 1.
25
26What:		/sys/class/leds/<led>/trigger
27Date:		March 2006
28KernelVersion:	2.6.17
29Contact:	Richard Purdie <rpurdie@rpsys.net>
30Description:
31		Set the trigger for this LED. A trigger is a kernel based source
32		of LED events.
33		You can change triggers in a similar manner to the way an IO
34		scheduler is chosen. Trigger specific parameters can appear in
35		/sys/class/leds/<led> once a given trigger is selected. For
36		their documentation see sysfs-class-led-trigger-*.
37
38What:		/sys/class/leds/<led>/inverted
39Date:		January 2011
40KernelVersion:	2.6.38
41Contact:	Richard Purdie <rpurdie@rpsys.net>
42Description:
43		Invert the LED on/off state. This parameter is specific to
44		gpio and backlight triggers. In case of the backlight trigger,
45		it is useful when driving a LED which is intended to indicate
46		a device in a standby like state.