FreeBSD touchscreen support (xf86-input-evdev and xf86-input-libinput ignoring wmt device)

[Denis Polygalov]

Hi,

I have a Panasonic CF-J10 laptop running:
$ uname -a
FreeBSD amadeus 12.1-RELEASE-p2 FreeBSD 12.1-RELEASE-p2 GENERIC  amd64

Also, I have a second LCD+touchscreen device connected to the laptop
via HDMI and USB cables.
The touchscreen is recognized by kernel as wmt(4) device:

ugen2.3: <WaveShare WaveShare Touchscreen> at usbus2
wmt0 on uhub4
wmt0: <WaveShare WaveShare Touchscreen, class 0/0, rev 2.00/2.00, addr 
3> on usbus2
wmt0: 2 contacts and [P]. Report range [0:0] - [1024:600]
wmt0: 5 feature report contacts

and appear as /dev/input/event4

I can see events flowing from the touchscreen when running
'evemu-record' (pkg install evemu).

The touchscreen is also appear in output from:
$ libinput list-devices

I have installed xf86-input-evdev
(also tried xf86-input-libinput, no luck)
and use configuration file 5-ts.conf placed into:

/usr/local/etc/X11/xorg.conf.d/

with content such as:

Section "InputDevice"
   Identifier "TouchScreen0"
   Driver "evdev"
   Option "Device"   "/dev/input/event4"
EndSection

but the touchscreen never appear in the:
$ xinput --list

Digging into Xorg.0.log file shows that the file:
/usr/local/lib/xorg/modules/input/evdev_drv.so

is never loaded:

% cat /var/log/Xorg.0.log | grep .so
[  5131.626] (==) Max clients allowed: 256, resource mask: 0x1fffff
[  5131.626] (II) Loading /usr/local/lib/xorg/modules/extensions/libglx.so
[  5131.628] (II) Loading 
/usr/local/lib/xorg/modules/drivers/modesetting_drv.so
[  5131.628] (II) Loading /usr/local/lib/xorg/modules/drivers/vesa_drv.so
[  5131.659] (II) Loading /usr/local/lib/xorg/modules/libglamoregl.so
[  5131.884] (II) Loading /usr/local/lib/xorg/modules/libfb.so
[  5132.328] (II) Loading /usr/local/lib/xorg/modules/input/kbd_drv.so
[  5132.330] (II) Loading /usr/local/lib/xorg/modules/input/mouse_drv.so

% cat /var/log/Xorg.0.log | grep XINPUT
[  5132.328] (II) XINPUT: Adding extended input device "kbdmux" (type: 
KEYBOARD, id 6)
[  5132.330] (II) XINPUT: Adding extended input device "sysmouse" (type: 
MOUSE, id 7)


Please advice how to get the touchscreen recognized by XINPUT...
Is this have something to do with following?

[  5131.626] (II) The server relies on devd to provide the list of input 
devices.
         If no devices become available, reconfigure devd or disable 
AutoAddDevices.


Regards,
Denis.