linux-kernel - Re: [PATCH] Map volume and brightness events on thinkpads

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Message-ID: <d120d5000710161418r1f796a33n276cbd3fb3585ccd@mail.gmail.com>
Date:	Tue, 16 Oct 2007 17:18:47 -0400
From:	"Dmitry Torokhov" <dmitry.torokhov@...il.com>
To:	"Matthew Garrett" <mjg59@...f.ucam.org>
Cc:	"Kok, Auke" <auke-jan.h.kok@...el.com>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Henrique de Moraes Holschuh" <hmh@....eng.br>,
	"Jeremy Katz" <katzj@...hat.com>, linux-kernel@...r.kernel.org,
	davej@...hat.com
Subject: Re: [PATCH] Map volume and brightness events on thinkpads

On 10/16/07, Matthew Garrett <mjg59@...f.ucam.org> wrote:
> On Tue, Oct 16, 2007 at 01:48:54PM -0700, Kok, Auke wrote:
>
> > real life example: hook up one of those fancy usb keyboards with volume buttons to
> > your thinkpad. The volume keys on the thinkpad do adjust the volume, the ones on
> > the USB keyboard do not - software needs to be able to distinguish between them,
> > and sane defaults for these events need to not overlap.
>
> That's not a problem - they'll be coming from different input devices.
>

You could connect an external PS/2 keyboard and map some keys to
control the volume/brightness there. It most likely will be the same
device from the kerenl POV.

More important - is brightness and volume are the only notifications
userspace is interested in? Aren't there other events that might be
interesting to userspace?

-- 
Dmitry
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