| 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 |
