projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 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. |