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authorAaron Lu <aaron.lu@intel.com>2013-06-20 15:08:55 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-06-21 00:13:15 +0200
commit3afe6dab86b669dd5bcef07b67d3ba7fb12a69a0 (patch)
treec6051eb0f7fc9a52db6e93fca0f387b0dbe25939 /Documentation/kernel-parameters.txt
parentc76911bc6b0aa6280bee01ab01a7c790029c47ef (diff)
downloadlwn-3afe6dab86b669dd5bcef07b67d3ba7fb12a69a0.tar.gz
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ACPI / video: add description for brightness_switch_enabled
Add description for video module's parameter brightness_switch_enabled into kernel-parameters.txt. Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
-rw-r--r--Documentation/kernel-parameters.txt9
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 2fe6e767b3d6..7f64e0f0258a 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -3229,6 +3229,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
video= [FB] Frame buffer configuration
See Documentation/fb/modedb.txt.
+ video.brightness_switch_enabled= [0,1]
+ If set to 1, on receiving an ACPI notify event
+ generated by hotkey, video driver will adjust brightness
+ level and then send out the event to user space through
+ the allocated input device; If set to 0, video driver
+ will only send out the event without touching backlight
+ brightness level.
+ default: 1
+
virtio_mmio.device=
[VMMIO] Memory mapped virtio (platform) device.