LXR linux/Documentation/ABI/testing/sysfs-class-backlight-driver-adp8870

   1What:           /sys/class/backlight/<backlight>/<ambient light zone>_max
   2What:           /sys/class/backlight/<backlight>/l1_daylight_max
   3What:           /sys/class/backlight/<backlight>/l2_bright_max
   4What:           /sys/class/backlight/<backlight>/l3_office_max
   5What:           /sys/class/backlight/<backlight>/l4_indoor_max
   6What:           /sys/class/backlight/<backlight>/l5_dark_max
   7Date:           May 2011
   8KernelVersion:  3.0
   9Contact:        device-drivers-devel@blackfin.uclinux.org
  10Description:
  11                Control the maximum brightness for <ambient light zone>
  12                on this <backlight>. Values are between 0 and 127. This file
  13                will also show the brightness level stored for this
  14                <ambient light zone>.
  15
  16What:           /sys/class/backlight/<backlight>/<ambient light zone>_dim
  17What:           /sys/class/backlight/<backlight>/l2_bright_dim
  18What:           /sys/class/backlight/<backlight>/l3_office_dim
  19What:           /sys/class/backlight/<backlight>/l4_indoor_dim
  20What:           /sys/class/backlight/<backlight>/l5_dark_dim
  21Date:           May 2011
  22KernelVersion:  3.0
  23Contact:        device-drivers-devel@blackfin.uclinux.org
  24Description:
  25                Control the dim brightness for <ambient light zone>
  26                on this <backlight>. Values are between 0 and 127, typically
  27                set to 0. Full off when the backlight is disabled.
  28                This file will also show the dim brightness level stored for
  29                this <ambient light zone>.
  30
  31What:           /sys/class/backlight/<backlight>/ambient_light_level
  32Date:           May 2011
  33KernelVersion:  3.0
  34Contact:        device-drivers-devel@blackfin.uclinux.org
  35Description:
  36                Get conversion value of the light sensor.
  37                This value is updated every 80 ms (when the light sensor
  38                is enabled). Returns integer between 0 (dark) and
  39                8000 (max ambient brightness)
  40
  41What:           /sys/class/backlight/<backlight>/ambient_light_zone
  42Date:           May 2011
  43KernelVersion:  3.0
  44Contact:        device-drivers-devel@blackfin.uclinux.org
  45Description:
  46                Get/Set current ambient light zone. Reading returns
  47                integer between 1..5 (1 = daylight, 2 = bright, ..., 5 = dark).
  48                Writing a value between 1..5 forces the backlight controller
  49                to enter the corresponding ambient light zone.
  50                Writing 0 returns to normal/automatic ambient light level
  51                operation. The ambient light sensing feature on these devices
  52                is an extension to the API documented in
  53                Documentation/ABI/stable/sysfs-class-backlight.
  54                It can be enabled by writing the value stored in
  55                /sys/class/backlight/<backlight>/max_brightness to
  56                /sys/class/backlight/<backlight>/brightness.