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Diffstat (limited to 'Documentation/ABI/testing/sysfs-class-backlight')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-backlight | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-backlight b/Documentation/ABI/testing/sysfs-class-backlight index 1fc86401bf95..c453646b06e2 100644 --- a/Documentation/ABI/testing/sysfs-class-backlight +++ b/Documentation/ABI/testing/sysfs-class-backlight @@ -84,3 +84,103 @@ Description: It can be enabled by writing the value stored in /sys/class/backlight/<backlight>/max_brightness to /sys/class/backlight/<backlight>/brightness. + +What: /sys/class/backlight/<backlight>/<ambient light zone>_max +Date: Sep, 2009 +KernelVersion: v2.6.32 +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>. + + The <ambient light zone> is device-driver specific: + + For ADP5520 and ADP5501, <ambient light zone> can be: + + =========== ================================================ + Ambient sysfs entry + light zone + =========== ================================================ + daylight /sys/class/backlight/<backlight>/daylight_max + office /sys/class/backlight/<backlight>/office_max + dark /sys/class/backlight/<backlight>/dark_max + =========== ================================================ + + For ADP8860, <ambient light zone> can be: + + =========== ================================================ + Ambient sysfs entry + light zone + =========== ================================================ + l1_daylight /sys/class/backlight/<backlight>/l1_daylight_max + l2_office /sys/class/backlight/<backlight>/l2_office_max + l3_dark /sys/class/backlight/<backlight>/l3_dark_max + =========== ================================================ + + For ADP8870, <ambient light zone> can be: + + =========== ================================================ + Ambient sysfs entry + light zone + =========== ================================================ + l1_daylight /sys/class/backlight/<backlight>/l1_daylight_max + l2_bright /sys/class/backlight/<backlight>/l2_bright_max + l3_office /sys/class/backlight/<backlight>/l3_office_max + l4_indoor /sys/class/backlight/<backlight>/l4_indoor_max + l5_dark /sys/class/backlight/<backlight>/l5_dark_max + =========== ================================================ + + See also: /sys/class/backlight/<backlight>/ambient_light_zone. + +What: /sys/class/backlight/<backlight>/<ambient light zone>_dim +Date: Sep, 2009 +KernelVersion: v2.6.32 +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>. + + The <ambient light zone> is device-driver specific: + + For ADP5520 and ADP5501, <ambient light zone> can be: + + =========== ================================================ + Ambient sysfs entry + light zone + =========== ================================================ + daylight /sys/class/backlight/<backlight>/daylight_dim + office /sys/class/backlight/<backlight>/office_dim + dark /sys/class/backlight/<backlight>/dark_dim + =========== ================================================ + + For ADP8860, <ambient light zone> can be: + + =========== ================================================ + Ambient sysfs entry + light zone + =========== ================================================ + l1_daylight /sys/class/backlight/<backlight>/l1_daylight_dim + l2_office /sys/class/backlight/<backlight>/l2_office_dim + l3_dark /sys/class/backlight/<backlight>/l3_dark_dim + =========== ================================================ + + For ADP8870, <ambient light zone> can be: + + =========== ================================================ + Ambient sysfs entry + light zone + =========== ================================================ + l1_daylight /sys/class/backlight/<backlight>/l1_daylight_dim + l2_bright /sys/class/backlight/<backlight>/l2_bright_dim + l3_office /sys/class/backlight/<backlight>/l3_office_dim + l4_indoor /sys/class/backlight/<backlight>/l4_indoor_dim + l5_dark /sys/class/backlight/<backlight>/l5_dark_dim + =========== ================================================ + + See also: /sys/class/backlight/<backlight>/ambient_light_zone. + |