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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>
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@ -3229,6 +3229,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
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video= [FB] Frame buffer configuration
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See Documentation/fb/modedb.txt.
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video.brightness_switch_enabled= [0,1]
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If set to 1, on receiving an ACPI notify event
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generated by hotkey, video driver will adjust brightness
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level and then send out the event to user space through
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the allocated input device; If set to 0, video driver
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will only send out the event without touching backlight
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brightness level.
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default: 1
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virtio_mmio.device=
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[VMMIO] Memory mapped virtio (platform) device.
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