wsp(4): Add evdev support.
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Authored by wulf on Aug 24 2021, 1:02 AM.

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rG139144a7ae7c: wsp(4): Add evdev support.
rG8d73071c47ff: wsp(4): Add evdev support.

Summary

Although patch is rather big, it mostly consists of multitouch code
refactoring required to import EBM-solver implementation from OpenBSD
and of EBM-solver itself which is required for touch tracking.

"Touch tracking is a process of assignment of unique trackingID to each
initiated contact on the surface. Keeping the trackingIDs persistent
across multitouch reports requires solving of so called Euclidian
Bipartite Matching problem."

Tested by Greg V, Constantin Furst<constantin_AT_fuersten_DOT_info>
MFC after 2 weeks
PR 252236

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rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

wulf created this revision.Aug 24 2021, 1:02 AM

Herald added a subscriber: imp. · View Herald TranscriptAug 24 2021, 1:02 AM

wulf requested review of this revision.Aug 24 2021, 1:02 AM

Harbormaster completed remote builds in B41175: Diff 94089.Aug 24 2021, 1:02 AM

s/convertor/converter/

Harbormaster completed remote builds in B41176: Diff 94091.Aug 24 2021, 7:58 AM

• hselasky added inline comments.Aug 24 2021, 8:13 AM

sys/dev/evdev/evdev.h
167 ↗	(On Diff #94091)	s/__inline/inline __inline is only used if you need to compile the code without inline.
sys/dev/usb/input/wsp.c
215	name this structure "wsp_tp"