From mboxrd@z Thu Jan  1 00:00:00 1970
From: Niko Rosvall <niko@fograven.net>
Subject: Re: Reading keys
Date: Mon, 10 May 2010 22:54:23 +0300
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To: Christoph Fritz <chf.fritz@googlemail.com>
Cc: Linux input <linux-input@vger.kernel.org>

On Mon, 2010-05-10 at 18:55 +0200, Christoph Fritz wrote:
> On Mon, 2010-05-10 at 19:01 +0300, Niko Rosvall wrote:
> > Hi All,
> > 
> > I'm new to Linux kernel and actually subscribed to this list today.
> > So, i'm not even sure is this the right place to ask this, but:
> > 
> > I want to make a kernel module which detects a keypress and then
> > disables it. E.g someone presses F1 and my module would just "eat" it.
> 
> Interesting usecase, is it for a kiosk? And why don't you disable the
> keys in X or your application?
> 
> > Any examples and/or hints where to start? Some nice, small peace of code
> > would be very very nice.
> 
> You could hack input_event() in drivers/input/input.c
> 
> Thanks,
>  Christoph

No, not for a kiosk or anything. Basically I'm just having fun here and
trying to do a module which would disable caps lock key completely.

Of course I can do that using xmodmap, but where's the fun then? ;)

I did modify input.c (didn't test it yet thought), but what I really
want is just a simple module so I can load and unload it when I want.

Cheers,
Niko