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Date:      Sun, 07 Oct 2018 18:11:24 +0000
From:      bugzilla-noreply@freebsd.org
To:        usb@FreeBSD.org
Subject:   [Bug 232040] wmt driver fails to attach to Synaptics Touchscreen
Message-ID:  <bug-232040-19105@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D232040

            Bug ID: 232040
           Summary: wmt driver fails to attach to Synaptics Touchscreen
           Product: Base System
           Version: CURRENT
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: usb
          Assignee: usb@FreeBSD.org
          Reporter: sakhmatd@darkn.space

I have a Lenovo YOGA 12 Thinkpad with a Synaptics Touchscreen.=20

It gets detected as=20

ugen0.2: <SYNAPTICS Synaptics Touch Digitizer V04> at usbus0, cfg=3D0 md=3D=
HOST
spd=3DFULL (12Mbps) pwr=3DON (400mA)

by usbconfig and I get a corresponding /dev/uhid0 device.

usbconfig -d ugen0.2 dump_all_desc:
https://ghostbin.com/paste/3fq7o

I can get the touchscreen working through webcamd, but the touch screen has
issues detecting ButtonRelease when configured that way.

Trying to hook /dev/uhid0 up as a mouse through xorg.conf gives me a segfau=
lt
when launching X.

I also have a usb_quirk setup to make the touchscreen get ignored by UMS, s=
ince
moused likes to attach itself to it every time in the console. It does not =
seem
to function as ums0, however.

Synaptics driver doesn't work with it either.

--=20
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