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- What: /sys/class/backlight/<backlight>/bl_power
- Date: April 2005
- KernelVersion: 2.6.12
- Contact: Richard Purdie <rpurdie@rpsys.net>
- Description:
- Control BACKLIGHT power, values are FB_BLANK_* from fb.h
- - FB_BLANK_UNBLANK (0) : power on.
- - FB_BLANK_POWERDOWN (4) : power off
- Users: HAL
- What: /sys/class/backlight/<backlight>/brightness
- Date: April 2005
- KernelVersion: 2.6.12
- Contact: Richard Purdie <rpurdie@rpsys.net>
- Description:
- Control the brightness for this <backlight>. Values
- are between 0 and max_brightness. This file will also
- show the brightness level stored in the driver, which
- may not be the actual brightness (see actual_brightness).
- Users: HAL
- What: /sys/class/backlight/<backlight>/actual_brightness
- Date: March 2006
- KernelVersion: 2.6.17
- Contact: Richard Purdie <rpurdie@rpsys.net>
- Description:
- Show the actual brightness by querying the hardware.
- Users: HAL
- What: /sys/class/backlight/<backlight>/max_brightness
- Date: April 2005
- KernelVersion: 2.6.12
- Contact: Richard Purdie <rpurdie@rpsys.net>
- Description:
- Maximum brightness for <backlight>.
- Users: HAL
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