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kernel / Documentation / ABI / testing / sysfs-class-backlight-adp5520
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1sysfs interface for analog devices adp5520(01) backlight driver 2--------------------------------------------------------------- 3 4The backlight brightness control operates at three different levels for the 5adp5520 and adp5501 devices: daylight (level 1), office (level 2) and dark 6(level 3). By default the brightness operates at the daylight brightness level. 7 8What: /sys/class/backlight/<backlight>/daylight_max 9What: /sys/class/backlight/<backlight>/office_max 10What: /sys/class/backlight/<backlight>/dark_max 11Date: Sep, 2009 12KernelVersion: v2.6.32 13Contact: Michael Hennerich <michael.hennerich@analog.com> 14Description: 15 (RW) Maximum current setting for the backlight when brightness 16 is at one of the three levels (daylight, office or dark). This 17 is an input code between 0 and 127, which is transformed to a 18 value between 0 mA and 30 mA using linear or non-linear 19 algorithms. 20 21What: /sys/class/backlight/<backlight>/daylight_dim 22What: /sys/class/backlight/<backlight>/office_dim 23What: /sys/class/backlight/<backlight>/dark_dim 24Date: Sep, 2009 25KernelVersion: v2.6.32 26Contact: Michael Hennerich <michael.hennerich@analog.com> 27Description: 28 (RW) Dim current setting for the backlight when brightness is at 29 one of the three levels (daylight, office or dark). This is an 30 input code between 0 and 127, which is transformed to a value 31 between 0 mA and 30 mA using linear or non-linear algorithms.