[Bug 252236] atp(4): Need EVDEV support for modern input stack

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=252236

--- Comment #26 from Greg V <greg at unrelenting.technology> ---
Created attachment 223276
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=223276&action=edit
linuxbcm.log

Comparing evemu logs to Linux, the only reason I can find for libinput to not
like your events very much is not sending ABS_MT_TRACKING_ID.

Here's a log from Linux, doing three simple movements, ABS_MT_TRACKING_ID
clearly goes 2 → -1 → 3 → -1 → 4 → -1 according to the touches. Doing similar
movements on wsp, I only see one ABS_MT_TRACKING_ID event (value 0). With my
WIP SPI driver right now (which works with the exact same finger struct from
the hardware), there are none, and libinput completely ignores these movements.

hmt works correctly, also reporting ABS_MT_TRACKING_ID -1 after each touch
finishes (even with the new mt code).

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