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

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Date:	Wed, 13 Nov 2013 08:28:40 -0800
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	Pali Rohár <pali.rohar@...il.com>,
	linux-kernel@...r.kernel.org, linux-input@...r.kernel.org
Subject: Re: input question: ambient light sensor button

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.

-- 
Dmitry
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