https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205690
Bug ID: 205690
Summary: [psm] [patch]: support for Elantech trackpads
Product: Base System
Version: 10.2-STABLE
Hardware: amd64
OS: Any
Status: New
Keywords: patch
Severity: Affects Many People
Priority: ---
Component: kern
Assignee: freebsd-bugs@FreeBSD.org
Reporter: k...@thaumogen.net
CC: freebsd-am...@freebsd.org
CC: freebsd-am...@freebsd.org
Keywords: patch
Created attachment 164815
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=164815&action=edit
Combined back-port from 11-CURRENT psm + Elantech support patch
Elantech trackpads are found in some laptops like the Asus UX31E. They are
"synaptics compatible" but use a slightly different protocol. They are well
supported on OpenBSD and NetBSD, but not in FreeBSD.
See previous discussions of issues:
https://lists.freebsd.org/pipermail/freebsd-x11/2012-August/012326.html
https://forums.freebsd.org/threads/touchpad-not-recognized-generic-ps-2-mouse-instead.50318/
A patch to support Elantech trackpads was proposed against 11-CURRENT by
Vladimir Kondratyev in September 2015 on the freebsd-mobile mailing list:
https://lists.freebsd.org/pipermail/freebsd-mobile/2015-September/013327.html
I hereby confirm as independent observer that this patch indeed works as
intended; moreover the Elantech trackpad is supported in 10-STABLE as well by
back-porting the patched psm driver from 11-CURRENT.
The attachment provides a combined patch against 10-STABLE revision 292841.
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