linux-kernel - Re: input question: ambient light sensor button

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Message-Id: <201311141302.33384@pali>
Date:	Thu, 14 Nov 2013 13:02:31 +0100
From:	Pali Rohár <pali.rohar@...il.com>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	Jiri Kosina <jkosina@...e.cz>, linux-kernel@...r.kernel.org,
	linux-input@...r.kernel.org
Subject: Re: input question: ambient light sensor button

On Wednesday 13 November 2013 17:28:40 Dmitry Torokhov wrote:
> On Wed, Nov 13, 2013 at 11:47:18AM +0100, Jiri Kosina wrote:
> > On Sun, 15 Sep 2013, Pali Rohár wrote:
> > > I do not know where to ask this question, but I think that
> > > kernel developers could help me.
> > > 
> > > I have notebook with one special button on keyboard which
> > > is designed for turning ambient light sensor on and off.
> > > By default pressing button do nothing (I can turn ambient
> > > light sensor on/off via sysfs platform wmi module).
> > > Button press is reported by kernel input device AT
> > > Translated Set 2 keyboard and reports it as button
> > > "touchpad off".
> > > 
> > > Of course "touchpad off" is incorrect and I'd like to ask
> > > which kernel key or button from
> > > /usr/include/linux/input.h should be mapped for my
> > > ambient light sensor button? Is there already some? And
> > > what is strategy for allocating KEY_* and BTN_* numbers?
> > 
> > This is maintained by Dmitry, so he's the one to answer
> > this. I am adding him to CC.
> 
> I guess we need patch adding
> 
> 	#define KEY_ALS_TOGGLE	0x230
> 
> Thanks.

So there is no good key for als yet?

-- 
Pali Rohár
pali.rohar@...il.com

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