forked from Minki/linux
70 lines
2.6 KiB
Plaintext
70 lines
2.6 KiB
Plaintext
|
What: /sys/class/leds/dell::kbd_backlight/als_enabled
|
||
|
|
Date: December 2014
|
||
|
|
KernelVersion: 3.19
|
||
|
|
Contact: Gabriele Mazzotta <gabriele.mzt@gmail.com>,
|
||
|
|
Pali Rohár <pali.rohar@gmail.com>
|
||
|
|
Description:
|
||
|
|
This file allows to control the automatic keyboard
|
||
|
|
illumination mode on some systems that have an ambient
|
||
|
|
light sensor. Write 1 to this file to enable the auto
|
||
|
|
mode, 0 to disable it.
|
||
|
|
|
||
|
|
What: /sys/class/leds/dell::kbd_backlight/als_setting
|
||
|
|
Date: December 2014
|
||
|
|
KernelVersion: 3.19
|
||
|
|
Contact: Gabriele Mazzotta <gabriele.mzt@gmail.com>,
|
||
|
|
Pali Rohár <pali.rohar@gmail.com>
|
||
|
|
Description:
|
||
|
|
This file allows to specifiy the on/off threshold value,
|
||
|
|
as reported by the ambient light sensor.
|
||
|
|
|
||
|
|
What: /sys/class/leds/dell::kbd_backlight/start_triggers
|
||
|
|
Date: December 2014
|
||
|
|
KernelVersion: 3.19
|
||
|
|
Contact: Gabriele Mazzotta <gabriele.mzt@gmail.com>,
|
||
|
|
Pali Rohár <pali.rohar@gmail.com>
|
||
|
|
Description:
|
||
|
|
This file allows to control the input triggers that
|
||
|
|
turn on the keyboard backlight illumination that is
|
||
|
|
disabled because of inactivity.
|
||
|
|
Read the file to see the triggers available. The ones
|
||
|
|
enabled are preceded by '+', those disabled by '-'.
|
||
|
|
|
||
|
|
To enable a trigger, write its name preceded by '+' to
|
||
|
|
this file. To disable a trigger, write its name preceded
|
||
|
|
by '-' instead.
|
||
|
|
|
||
|
|
For example, to enable the keyboard as trigger run:
|
||
|
|
echo +keyboard > /sys/class/leds/dell::kbd_backlight/start_triggers
|
||
|
|
To disable it:
|
||
|
|
echo -keyboard > /sys/class/leds/dell::kbd_backlight/start_triggers
|
||
|
|
|
||
|
|
Note that not all the available triggers can be configured.
|
||
|
|
|
||
|
|
What: /sys/class/leds/dell::kbd_backlight/stop_timeout
|
||
|
|
Date: December 2014
|
||
|
|
KernelVersion: 3.19
|
||
|
|
Contact: Gabriele Mazzotta <gabriele.mzt@gmail.com>,
|
||
|
|
Pali Rohár <pali.rohar@gmail.com>
|
||
|
|
Description:
|
||
|
|
This file allows to specify the interval after which the
|
||
|
|
keyboard illumination is disabled because of inactivity.
|
||
|
|
The timeouts are expressed in seconds, minutes, hours and
|
||
|
|
days, for which the symbols are 's', 'm', 'h' and 'd'
|
||
|
|
respectively.
|
||
|
|
|
||
|
|
To configure the timeout, write to this file a value along
|
||
|
|
with any the above units. If no unit is specified, the value
|
||
|
|
is assumed to be expressed in seconds.
|
||
|
|
|
||
|
|
For example, to set the timeout to 10 minutes run:
|
||
|
|
echo 10m > /sys/class/leds/dell::kbd_backlight/stop_timeout
|
||
|
|
|
||
|
|
Note that when this file is read, the returned value might be
|
||
|
|
expressed in a different unit than the one used when the timeout
|
||
|
|
was set.
|
||
|
|
|
||
|
|
Also note that only some timeouts are supported and that
|
||
|
|
some systems might fall back to a specific timeout in case
|
||
|
|
an invalid timeout is written to this file.
|