On Wed, 2007-06-13 at 10:20 +0200, Thomas Gleixner wrote:

On Wed, 2007-06-13 at 09:58 +0200, Peter Feuerer wrote:

quoted

That would be a very fast and easy to implement solution, but then I
have to touch the kernel again. I wanted not to do that.

quoted

But i guess a better variant would be to adopt the IIO framework
for your purpose (http://lkml.org/lkml/2006/8/30/22)

Great, seems like that's what I'm searching for. I will have a deeper
look into this. Because if this is going to be in the mainline kernel, I
don't have to touch the kernel at all.

You have to touch it. You still need to write a kernel module which
handles the interrupt in the first place.

But wouldn't it be a good idea to create a kernel driver which offers an
abstract interface and add it to the mainline kernel or to the preempt
patch? So that handling interrupts can really just happen by coding a
userspace program?
Or is there no way to accomplish that? Sorry if this questions may sound
stupid, I'm not that deep in the code,.. yet.

--peter