[RFC 0/2] Add EVIOC mechanism to extract the MT slot state

Hi guys,

This patchset is a rework of Henrik's original work.
Henrik, I kept your signed-off-by, please tell me if it's ok with you.
I just changed the method call (and signature) for it to be compliant with the new EVIOC handling.

I'm not very happy with it (for instance, there is a call of an mt stuff in generic input), but it's a start.

Cheers,
Benjamin