[PATCH libinput 00/11] Touchpad pressure-based touch detection

[Peter Hutterer]

So far, we've relied on BTN_TOUCH on touchpads to detect whether a touch is
down. This is a value decided by the kernel and not always useful, e.g. see
the various bugs hanging off
https://bugs.freedesktop.org/show_bug.cgi?id=99355

we already had a bit of pressure detection for thumb detection, but this
patchset switches it to effectively ignore BTN_TOUCH and instead use the
pressure value. Long-term this enables us to have per-device pressure
detection.

Patches 01 to 07 are to make the semi-mt test devices actually do the rigth
thing, 9 and 10 and 11 are more test suite patches. The real meat [1] is patch
10 so if you can only gather up enough courage to look at one patch, review
that one please :)

Cheers,
  Peter

[1] just imagine it's made from soy products if you're vegetarian or vegan.
BYO mustard.