On 26.01.2018 15:55, Aishwarya Pant wrote:
Add documentation for sysfs interface of adp8860 series backlight devices by reading through code and git commits.
Signed-off-by: Aishwarya Pant aishpant@gmail.com
Acked-by: Michael Hennerich michael.hennerich@analog.com
.../ABI/testing/sysfs-class-backlight-adp8860 | 54 ++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-class-backlight-adp8860
diff --git a/Documentation/ABI/testing/sysfs-class-backlight-adp8860 b/Documentation/ABI/testing/sysfs-class-backlight-adp8860 new file mode 100644 index 000000000000..54d61c788b1b --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-backlight-adp8860 @@ -0,0 +1,54 @@ +sysfs interface for analog devices adp8860 backlight driver +-----------------------------------------------------------
+The backlight brightness control operates at three different levels for the +adp8860, adp8861 and adp8863 devices: daylight (level 1), office (level 2) and +dark (level 3). By default the brightness operates at the daylight brightness +level.
+What: /sys/class/backlight/<backlight>/ambient_light_level +Date: Apr, 2010 +KernelVersion: v2.6.35 +Contact: Michael Hennerich michael.hennerich@analog.com +Description:
(RO) 13-bit conversion value for the first light sensor—highbyte (Bit 12 to Bit 8). The value is updated every 80 ms (whenthe light sensor is enabled).+What: /sys/class/backlight/<backlight>/ambient_light_zone +Date: Apr, 2010 +KernelVersion: v2.6.35 +Contact: Michael Hennerich michael.hennerich@analog.com +Description:
(RW) Read or write the specific level at which the backlightoperates. Value "0" enables automatic ambient light sensing, andvalues "1", "2" or "3" set the control to daylight, office ordark respectively.+What: /sys/class/backlight/<backlight>/l1_daylight_max +What: /sys/class/backlight/<backlight>/l2_office_max +What: /sys/class/backlight/<backlight>/l3_dark_max +Date: Apr, 2010 +KernelVersion: v2.6.35 +Contact: Michael Hennerich michael.hennerich@analog.com +Description:
(RW) Maximum current setting for the backlight when brightnessis at one of the three levels (daylight, office or dark). Thisis an input code between 0 and 127, which is transformed to avalue between 0 mA and 30 mA using linear or non-linearalgorithms.+What: /sys/class/backlight/<backlight>/l1_daylight_dim +What: /sys/class/backlight/<backlight>/l2_office_dim +What: /sys/class/backlight/<backlight>/l3_dark_dim +Date: Apr, 2010 +KernelVersion: v2.6.35 +Contact: Michael Hennerich michael.hennerich@analog.com +Description:
(RW) Dim current setting for the backlight when brightness is atone of the three levels (daylight, office or dark). This is aninput code between 0 and 127, which is transformed to a valuebetween 0 mA and 30 mA using linear or non-linear algorithms.