Commit 36342742 authored Jul 14, 2009 by Matthew Garrett Committed by Richard Purdie Sep 21, 2009

backlight/acpi: Update the backlight state when we change brightness



Trigger a status update when we change the brightness in the driver, thus
allowing userspace to present appropriate UI.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

parent 325253a6

drivers/acpi/video.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -1960,6 +1960,10 @@ acpi_video_switch_brightness(struct acpi_video_device *device, int event)

		result = acpi_video_device_lcd_set_level(device, level_next);

		if (!result)
		backlight_force_update(device->backlight,
		BACKLIGHT_UPDATE_HOTKEY);

		out:
		if (result)
		printk(KERN_ERR PREFIX "Failed to switch the brightness\n");