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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /Documentation/ABI/testing/sysfs-class-lcd
parentInitial commit. (diff)
downloadlinux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz
linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--Documentation/ABI/testing/sysfs-class-lcd23
-rw-r--r--Documentation/ABI/testing/sysfs-class-lcd-s6e63m027
2 files changed, 50 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-lcd b/Documentation/ABI/testing/sysfs-class-lcd
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+What: /sys/class/lcd/<lcd>/lcd_power
+Date: April 2005
+KernelVersion: 2.6.12
+Contact: Richard Purdie <rpurdie@rpsys.net>
+Description:
+ Control LCD power, values are FB_BLANK_* from fb.h
+ - FB_BLANK_UNBLANK (0) : power on.
+ - FB_BLANK_POWERDOWN (4) : power off
+
+What: /sys/class/lcd/<lcd>/contrast
+Date: April 2005
+KernelVersion: 2.6.12
+Contact: Richard Purdie <rpurdie@rpsys.net>
+Description:
+ Current contrast of this LCD device. Value is between 0 and
+ /sys/class/lcd/<lcd>/max_contrast.
+
+What: /sys/class/lcd/<lcd>/max_contrast
+Date: April 2005
+KernelVersion: 2.6.12
+Contact: Richard Purdie <rpurdie@rpsys.net>
+Description:
+ Maximum contrast for this LCD device.
diff --git a/Documentation/ABI/testing/sysfs-class-lcd-s6e63m0 b/Documentation/ABI/testing/sysfs-class-lcd-s6e63m0
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+sysfs interface for the S6E63M0 AMOLED LCD panel driver
+-------------------------------------------------------
+
+What: /sys/class/lcd/<lcd>/gamma_mode
+Date: May, 2010
+KernelVersion: v2.6.35
+Contact: dri-devel@lists.freedesktop.org
+Description:
+ (RW) Read or write the gamma mode. Following three modes are
+ supported:
+ 0 - gamma value 2.2,
+ 1 - gamma value 1.9 and
+ 2 - gamma value 1.7.
+
+
+What: /sys/class/lcd/<lcd>/gamma_table
+Date: May, 2010
+KernelVersion: v2.6.35
+Contact: dri-devel@lists.freedesktop.org
+Description:
+ (RO) Displays the size of the gamma table i.e. the number of
+ gamma modes available.
+
+This is a backlight lcd driver. These interfaces are an extension to the API
+documented in Documentation/ABI/testing/sysfs-class-lcd and in
+Documentation/ABI/stable/sysfs-class-backlight (under
+/sys/class/backlight/<backlight>/).