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cleanup LED documentation and make it match reality

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sysfs-class-led fails to mention some important details. Also fix led
vs LED and english.

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
This commit is contained in:
Pavel Machek 2016-10-03 10:10:50 +02:00 committed by Jacek Anaszewski
parent aa73684cde
commit ed25e9cae1
1 changed files with 11 additions and 3 deletions
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14
Documentation/ABI/testing/sysfs-class-led
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@ -4,16 +4,24 @@ KernelVersion: 2.6.17
Contact: Richard Purdie <rpurdie@rpsys.net>
Description:
Set the brightness of the LED. Most LEDs don't
have hardware brightness support so will just be turned on for
have hardware brightness support, so will just be turned on for
non-zero brightness settings. The value is between 0 and
/sys/class/leds/<led>/max_brightness.
Writing 0 to this file clears active trigger.
Writing non-zero to this file while trigger is active changes the
top brightness trigger is going to use.
What: /sys/class/leds/<led>/max_brightness
Date: March 2006
KernelVersion: 2.6.17
Contact: Richard Purdie <rpurdie@rpsys.net>
Description:
Maximum brightness level for this led, default is 255 (LED_FULL).
Maximum brightness level for this LED, default is 255 (LED_FULL).
If the LED does not support different brightness levels, this
should be 1.
What: /sys/class/leds/<led>/trigger
Date: March 2006
@ -21,7 +29,7 @@ KernelVersion: 2.6.17
Contact: Richard Purdie <rpurdie@rpsys.net>
Description:
Set the trigger for this LED. A trigger is a kernel based source
of led events.
of LED events.
You can change triggers in a similar manner to the way an IO
scheduler is chosen. Trigger specific parameters can appear in
/sys/class/leds/<led> once a given trigger is selected. For