perf record: Document --group option
[linux/fpc-iii.git] / Documentation / ABI / testing / sysfs-class-backlight-driver-adp8870
blob33e648808117770949f81bd72e4b7fe1479705d4
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>.
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>.
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)
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.