Re: [PATCH v3] platform: x86: dell-laptop: Add support for keyboard backlight

From: Darren Hart
Date: Fri Dec 05 2014 - 23:31:30 EST

On Fri, Dec 05, 2014 at 12:53:31PM +0100, Pali Rohár wrote:
> This patch adds support for configuring keyboard backlight settings on supported
> Dell laptops. It exports kernel leds interface and uses Dell SMBIOS tokens or
> keyboard class interface.
> With this patch it is possible to set:
> * keyboard backlight level
> * timeout after which will be backlight automatically turned off
> * input activity triggers (keyboard, touchpad, mouse) which enable backlight
> * ambient light settings
> Settings are exported via sysfs:
> /sys/class/leds/dell::kbd_backlight/
> Code is based on newly released documentation by Dell in libsmbios project.
> Thanks to Dan Carpenter who reported bug about unpredictable results in
> quirks->kbd_timeouts for loop. His fix adds needs_kbd_timeouts flag to
> quirk structure to indicate if kbd_timeouts array is empty or not.
> Signed-off-by: Pali Rohár <pali.rohar@xxxxxxxxx>
> Signed-off-by: Gabriele Mazzotta <gabriele.mzt@xxxxxxxxx>
> Cc: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

Applied to testing with minor English corrections to the new comments.

Thank you Pali.

Darren Hart
Intel Open Source Technology Center
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