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Commit | Line | Data |
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5f634c65 CC |
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 | |
1f70cb40 RM |
27 | /sys/class/leds/<led> once a given trigger is selected. For |
28 | their documentation see sysfs-class-led-trigger-*. | |
5f634c65 | 29 | |
9f9455ae JK |
30 | What: /sys/class/leds/<led>/inverted |
31 | Date: January 2011 | |
32 | KernelVersion: 2.6.38 | |
33 | Contact: Richard Purdie <rpurdie@rpsys.net> | |
34 | Description: | |
35 | Invert the LED on/off state. This parameter is specific to | |
36 | gpio and backlight triggers. In case of the backlight trigger, | |
25985edc | 37 | it is useful when driving a LED which is intended to indicate |
9f9455ae | 38 | a device in a standby like state. |