| sysfs interface for analog devices adp8860 backlight driver | |
| ----------------------------------------------------------- | |
| The backlight brightness control operates at three different levels for the | |
| adp8860, adp8861 and adp8863 devices: daylight (level 1), office (level 2) and | |
| dark (level 3). By default the brightness operates at the daylight brightness | |
| level. | |
| What: /sys/class/backlight/<backlight>/ambient_light_level | |
| Date: Apr, 2010 | |
| KernelVersion: v2.6.35 | |
| Contact: Michael Hennerich <michael.hennerich@analog.com> | |
| Description: | |
| (RO) 13-bit conversion value for the first light sensor—high | |
| byte (Bit 12 to Bit 8). The value is updated every 80 ms (when | |
| the light sensor is enabled). | |
| What: /sys/class/backlight/<backlight>/ambient_light_zone | |
| Date: Apr, 2010 | |
| KernelVersion: v2.6.35 | |
| Contact: Michael Hennerich <michael.hennerich@analog.com> | |
| Description: | |
| (RW) Read or write the specific level at which the backlight | |
| operates. Value "0" enables automatic ambient light sensing, and | |
| values "1", "2" or "3" set the control to daylight, office or | |
| dark respectively. | |
| What: /sys/class/backlight/<backlight>/l1_daylight_max | |
| What: /sys/class/backlight/<backlight>/l2_office_max | |
| What: /sys/class/backlight/<backlight>/l3_dark_max | |
| Date: Apr, 2010 | |
| KernelVersion: v2.6.35 | |
| Contact: Michael Hennerich <michael.hennerich@analog.com> | |
| Description: | |
| (RW) Maximum current setting for the backlight when brightness | |
| is at one of the three levels (daylight, office or dark). This | |
| is an input code between 0 and 127, which is transformed to a | |
| value between 0 mA and 30 mA using linear or non-linear | |
| algorithms. | |
| What: /sys/class/backlight/<backlight>/l1_daylight_dim | |
| What: /sys/class/backlight/<backlight>/l2_office_dim | |
| What: /sys/class/backlight/<backlight>/l3_dark_dim | |
| Date: Apr, 2010 | |
| KernelVersion: v2.6.35 | |
| Contact: Michael Hennerich <michael.hennerich@analog.com> | |
| Description: | |
| (RW) Dim current setting for the backlight when brightness is at | |
| one of the three levels (daylight, office or dark). This is an | |
| input code between 0 and 127, which is transformed to a value | |
| between 0 mA and 30 mA using linear or non-linear algorithms. |