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diff --git a/Documentation/ABI/testing/sysfs-platform-dell-laptop b/Documentation/ABI/testing/sysfs-platform-dell-laptop deleted file mode 100644 index 7969443ef0ef..000000000000 --- a/Documentation/ABI/testing/sysfs-platform-dell-laptop +++ /dev/null | |||
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| 1 | What: /sys/class/leds/dell::kbd_backlight/als_setting | ||
| 2 | Date: December 2014 | ||
| 3 | KernelVersion: 3.19 | ||
| 4 | Contact: Gabriele Mazzotta <gabriele.mzt@gmail.com>, | ||
| 5 | Pali Rohár <pali.rohar@gmail.com> | ||
| 6 | Description: | ||
| 7 | This file allows to control the automatic keyboard | ||
| 8 | illumination mode on some systems that have an ambient | ||
| 9 | light sensor. Write 1 to this file to enable the auto | ||
| 10 | mode, 0 to disable it. | ||
| 11 | |||
| 12 | What: /sys/class/leds/dell::kbd_backlight/start_triggers | ||
| 13 | Date: December 2014 | ||
| 14 | KernelVersion: 3.19 | ||
| 15 | Contact: Gabriele Mazzotta <gabriele.mzt@gmail.com>, | ||
| 16 | Pali Rohár <pali.rohar@gmail.com> | ||
| 17 | Description: | ||
| 18 | This file allows to control the input triggers that | ||
| 19 | turn on the keyboard backlight illumination that is | ||
| 20 | disabled because of inactivity. | ||
| 21 | Read the file to see the triggers available. The ones | ||
| 22 | enabled are preceded by '+', those disabled by '-'. | ||
| 23 | |||
| 24 | To enable a trigger, write its name preceded by '+' to | ||
| 25 | this file. To disable a trigger, write its name preceded | ||
| 26 | by '-' instead. | ||
| 27 | |||
| 28 | For example, to enable the keyboard as trigger run: | ||
| 29 | echo +keyboard > /sys/class/leds/dell::kbd_backlight/start_triggers | ||
| 30 | To disable it: | ||
| 31 | echo -keyboard > /sys/class/leds/dell::kbd_backlight/start_triggers | ||
| 32 | |||
| 33 | Note that not all the available triggers can be configured. | ||
| 34 | |||
| 35 | What: /sys/class/leds/dell::kbd_backlight/stop_timeout | ||
| 36 | Date: December 2014 | ||
| 37 | KernelVersion: 3.19 | ||
| 38 | Contact: Gabriele Mazzotta <gabriele.mzt@gmail.com>, | ||
| 39 | Pali Rohár <pali.rohar@gmail.com> | ||
| 40 | Description: | ||
| 41 | This file allows to specify the interval after which the | ||
| 42 | keyboard illumination is disabled because of inactivity. | ||
| 43 | The timeouts are expressed in seconds, minutes, hours and | ||
| 44 | days, for which the symbols are 's', 'm', 'h' and 'd' | ||
| 45 | respectively. | ||
| 46 | |||
| 47 | To configure the timeout, write to this file a value along | ||
| 48 | with any the above units. If no unit is specified, the value | ||
| 49 | is assumed to be expressed in seconds. | ||
| 50 | |||
| 51 | For example, to set the timeout to 10 minutes run: | ||
| 52 | echo 10m > /sys/class/leds/dell::kbd_backlight/stop_timeout | ||
| 53 | |||
| 54 | Note that when this file is read, the returned value might be | ||
| 55 | expressed in a different unit than the one used when the timeout | ||
| 56 | was set. | ||
| 57 | |||
| 58 | Also note that only some timeouts are supported and that | ||
| 59 | some systems might fall back to a specific timeout in case | ||
| 60 | an invalid timeout is written to this file. | ||