[PATCH 0/3] HID: multitouch: fix a corner case of some Win 8 devices

From: Benjamin Tissoires
Date: Thu Jun 15 2017 - 09:32:25 EST


It looks like the Microsft certification misses one case of released fingers.

The (only) solution we can have against that is to wait for a hundred of ms,
and if no input report comes in, consider that the touches should have been
released. The spec, as I read it, enforces that.

Arek, can you please give a test to this new series?
I managed to find out a way to have the IRQ and the timeout exclusive, and
also added a few optimizations.

Cheers,
Benjamin

Benjamin Tissoires (3):
HID: multitouch: use BIT macro
HID: multitouch: fix rare Win 8 cases when the touch up event gets
missing
HID: multitouch: optimize the sticky fingers timer

drivers/hid/hid-multitouch.c | 149 ++++++++++++++++++++++++++++++++-----------
1 file changed, 110 insertions(+), 39 deletions(-)

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2.9.4