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.
47