About Kernel Documentation Linux Kernel Contact Linux Resources Linux Blog

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




Custom Search

Based on kernel version 3.9. Page generated on 2013-05-02 22:53 EST.

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.
Hide Line Numbers
About Kernel Documentation Linux Kernel Contact Linux Resources Linux Blog
Information is copyright its respective author. All material is available from the Linux Kernel Source distributed under a GPL License. This page is provided as a free service by mjmwired.net.