diff options
Diffstat (limited to 'kernel/Documentation/ABI/testing/sysfs-class-backlight-driver-adp8870')
| -rw-r--r-- | kernel/Documentation/ABI/testing/sysfs-class-backlight-driver-adp8870 | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/kernel/Documentation/ABI/testing/sysfs-class-backlight-driver-adp8870 b/kernel/Documentation/ABI/testing/sysfs-class-backlight-driver-adp8870 new file mode 100644 index 000000000..33e648808 --- /dev/null +++ b/kernel/Documentation/ABI/testing/sysfs-class-backlight-driver-adp8870 @@ -0,0 +1,56 @@ +What: /sys/class/backlight/<backlight>/<ambient light zone>_max +What: /sys/class/backlight/<backlight>/l1_daylight_max +What: /sys/class/backlight/<backlight>/l2_bright_max +What: /sys/class/backlight/<backlight>/l3_office_max +What: /sys/class/backlight/<backlight>/l4_indoor_max +What: /sys/class/backlight/<backlight>/l5_dark_max +Date: May 2011 +KernelVersion: 3.0 +Contact: device-drivers-devel@blackfin.uclinux.org +Description: + Control the maximum brightness for <ambient light zone> + on this <backlight>. Values are between 0 and 127. This file + will also show the brightness level stored for this + <ambient light zone>. + +What: /sys/class/backlight/<backlight>/<ambient light zone>_dim +What: /sys/class/backlight/<backlight>/l2_bright_dim +What: /sys/class/backlight/<backlight>/l3_office_dim +What: /sys/class/backlight/<backlight>/l4_indoor_dim +What: /sys/class/backlight/<backlight>/l5_dark_dim +Date: May 2011 +KernelVersion: 3.0 +Contact: device-drivers-devel@blackfin.uclinux.org +Description: + Control the dim brightness for <ambient light zone> + on this <backlight>. Values are between 0 and 127, typically + set to 0. Full off when the backlight is disabled. + This file will also show the dim brightness level stored for + this <ambient light zone>. + +What: /sys/class/backlight/<backlight>/ambient_light_level +Date: May 2011 +KernelVersion: 3.0 +Contact: device-drivers-devel@blackfin.uclinux.org +Description: + Get conversion value of the light sensor. + This value is updated every 80 ms (when the light sensor + is enabled). Returns integer between 0 (dark) and + 8000 (max ambient brightness) + +What: /sys/class/backlight/<backlight>/ambient_light_zone +Date: May 2011 +KernelVersion: 3.0 +Contact: device-drivers-devel@blackfin.uclinux.org +Description: + Get/Set current ambient light zone. Reading returns + integer between 1..5 (1 = daylight, 2 = bright, ..., 5 = dark). + Writing a value between 1..5 forces the backlight controller + to enter the corresponding ambient light zone. + Writing 0 returns to normal/automatic ambient light level + operation. The ambient light sensing feature on these devices + is an extension to the API documented in + Documentation/ABI/stable/sysfs-class-backlight. + It can be enabled by writing the value stored in + /sys/class/backlight/<backlight>/max_brightness to + /sys/class/backlight/<backlight>/brightness. |