this one was already applied on 12/30
it was titled video: always update the brightness when poking "brightness"
--
Len Brown, Intel Open Source Technology Center
On Thu, 8 Jan 2009, Zhang Rui wrote:
> Always update the props.brightness
> whenever the ACPI video backlight is changed.
>
> Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx>
> ---
> drivers/acpi/video.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> Index: linux-2.6/drivers/acpi/video.c
> ===================================================================
> --- linux-2.6.orig/drivers/acpi/video.c
> +++ linux-2.6/drivers/acpi/video.c
> @@ -481,6 +481,7 @@ acpi_video_device_lcd_set_level(struct a
> int status = AE_OK;
> union acpi_object arg0 = { ACPI_TYPE_INTEGER };
> struct acpi_object_list args = { 1, &arg0 };
> + int state;
>
>
> arg0.integer.value = level;
> @@ -489,6 +490,10 @@ acpi_video_device_lcd_set_level(struct a
> status = acpi_evaluate_object(device->dev->handle, "_BCM",
> &args, NULL);
> device->brightness->curr = level;
> + for (state = 2; state < device->brightness->count; state++)
> + if (level == device->brightness->levels[state])
> + device->backlight->props.brightness = state - 2;
> +
> return status;
> }
>
>
>
> --
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