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- What: /sys/class/leds/<led>/brightness
- Date: March 2006
- KernelVersion: 2.6.17
- Contact: Richard Purdie <rpurdie@rpsys.net>
- Description:
- Set the brightness of the LED. Most LEDs don't
- have hardware brightness support so will just be turned on for
- non-zero brightness settings. The value is between 0 and
- /sys/class/leds/<led>/max_brightness.
- What: /sys/class/leds/<led>/max_brightness
- Date: March 2006
- KernelVersion: 2.6.17
- Contact: Richard Purdie <rpurdie@rpsys.net>
- Description:
- Maximum brightness level for this led, default is 255 (LED_FULL).
- What: /sys/class/leds/<led>/trigger
- Date: March 2006
- KernelVersion: 2.6.17
- Contact: Richard Purdie <rpurdie@rpsys.net>
- Description:
- Set the trigger for this LED. A trigger is a kernel based source
- of led events.
- You can change triggers in a similar manner to the way an IO
- scheduler is chosen. Trigger specific parameters can appear in
- /sys/class/leds/<led> once a given trigger is selected.
- What: /sys/class/leds/<led>/inverted
- Date: January 2011
- KernelVersion: 2.6.38
- Contact: Richard Purdie <rpurdie@rpsys.net>
- Description:
- Invert the LED on/off state. This parameter is specific to
- gpio and backlight triggers. In case of the backlight trigger,
- it is useful when driving a LED which is intended to indicate
- a device in a standby like state.
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