/Documentation/ABI/testing/sysfs-class-led
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Possible License(s): CC-BY-SA-3.0, GPL-2.0, LGPL-2.0, AGPL-1.0
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.
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