Re: Reading keys

[Niko Rosvall <niko@fograven.net>]

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