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

   1 What:           /sys/class/backlight/<backlight>/<ambient light zone>_max
   2 What:           /sys/class/backlight/<backlight>/l1_daylight_max
   3 What:           /sys/class/backlight/<backlight>/l2_bright_max
   4 What:           /sys/class/backlight/<backlight>/l3_office_max
   5 What:           /sys/class/backlight/<backlight>/l4_indoor_max
   6 What:           /sys/class/backlight/<backlight>/l5_dark_max
   7 Date:           May 2011
   8 KernelVersion:  3.0
   9 Contact:        device-drivers-devel@blackfin.uclinux.org
  10 Description:
  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
  16 What:           /sys/class/backlight/<backlight>/<ambient light zone>_dim
  17 What:           /sys/class/backlight/<backlight>/l2_bright_dim
  18 What:           /sys/class/backlight/<backlight>/l3_office_dim
  19 What:           /sys/class/backlight/<backlight>/l4_indoor_dim
  20 What:           /sys/class/backlight/<backlight>/l5_dark_dim
  21 Date:           May 2011
  22 KernelVersion:  3.0
  23 Contact:        device-drivers-devel@blackfin.uclinux.org
  24 Description:
  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
  31 What:           /sys/class/backlight/<backlight>/ambient_light_level
  32 Date:           May 2011
  33 KernelVersion:  3.0
  34 Contact:        device-drivers-devel@blackfin.uclinux.org
  35 Description:
  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
  41 What:           /sys/class/backlight/<backlight>/ambient_light_zone
  42 Date:           May 2011
  43 KernelVersion:  3.0
  44 Contact:        device-drivers-devel@blackfin.uclinux.org
  45 Description:
  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.