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Diffstat (limited to 'Documentation/ABI/testing/sysfs-class-led')
-rw-r--r-- | Documentation/ABI/testing/sysfs-class-led | 28 |
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diff --git a/Documentation/ABI/testing/sysfs-class-led b/Documentation/ABI/testing/sysfs-class-led new file mode 100644 index 000000000000..9e4541d71cb6 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-led | |||
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1 | What: /sys/class/leds/<led>/brightness | ||
2 | Date: March 2006 | ||
3 | KernelVersion: 2.6.17 | ||
4 | Contact: Richard Purdie <rpurdie@rpsys.net> | ||
5 | Description: | ||
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 | What: /sys/class/leds/<led>/max_brightness | ||
12 | Date: March 2006 | ||
13 | KernelVersion: 2.6.17 | ||
14 | Contact: Richard Purdie <rpurdie@rpsys.net> | ||
15 | Description: | ||
16 | Maximum brightness level for this led, default is 255 (LED_FULL). | ||
17 | |||
18 | What: /sys/class/leds/<led>/trigger | ||
19 | Date: March 2006 | ||
20 | KernelVersion: 2.6.17 | ||
21 | Contact: Richard Purdie <rpurdie@rpsys.net> | ||
22 | Description: | ||
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. | ||
28 | |||