Re: [PATCH v2] Input - mt: Fix input_mt_get_slot_by_key

[Henrik Rydberg <rydberg@bitmath.org>]

> My guess is that none of these drivers are
> able to handle a silent closing of a slot and the easiest solution might
> be to simply change the documentation if in fact nobody uses the
> compressed notation (which removes just one ABS_SLOT event within the
> frame, so not sure we can call it compressed BTW).

No, this is a very bad idea. As is obvious from the patch and the problem, there
are cases that the typical add/remove interface cannot handle, without either
adding more frames or support twice as many slots. How else would you report a
complete change of all N contacts into N new contacts, for instance?

The kernel protocol is solid and works for all cases. Userland thus has access
to a complete solution.

Henrik