修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/Documentation/ABI/testing/sysfs-class-backlight-driver-adp8870
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@@ -1,3 +1,6 @@
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+See also /sys/class/backlight/<backlight>/ambient_light_level and
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+/sys/class/backlight/<backlight>/ambient_light_zone.
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+
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 What:		/sys/class/backlight/<backlight>/<ambient light zone>_max
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 What:		/sys/class/backlight/<backlight>/l1_daylight_max
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 What:		/sys/class/backlight/<backlight>/l2_bright_max
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@@ -27,30 +30,3 @@
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 		set to 0. Full off when the backlight is disabled.
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 		This file will also show the dim brightness level stored for
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 		this <ambient light zone>.
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-
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-What:		/sys/class/backlight/<backlight>/ambient_light_level
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-Date:		May 2011
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-KernelVersion:	3.0
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-Contact:	device-drivers-devel@blackfin.uclinux.org
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-Description:
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-		Get conversion value of the light sensor.
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-		This value is updated every 80 ms (when the light sensor
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-		is enabled). Returns integer between 0 (dark) and
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-		8000 (max ambient brightness)
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-
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-What:		/sys/class/backlight/<backlight>/ambient_light_zone
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-Date:		May 2011
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-KernelVersion:	3.0
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-Contact:	device-drivers-devel@blackfin.uclinux.org
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-Description:
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-		Get/Set current ambient light zone. Reading returns
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-		integer between 1..5 (1 = daylight, 2 = bright, ..., 5 = dark).
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-		Writing a value between 1..5 forces the backlight controller
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-		to enter the corresponding ambient light zone.
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-		Writing 0 returns to normal/automatic ambient light level
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-		operation. The ambient light sensing feature on these devices
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-		is an extension to the API documented in
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-		Documentation/ABI/stable/sysfs-class-backlight.
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-		It can be enabled by writing the value stored in
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-		/sys/class/backlight/<backlight>/max_brightness to
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-		/sys/class/backlight/<backlight>/brightness.