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

[Denis Polygalov]

Answering my own question. This is already known:

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=232040

Adding:

InputDevice "TouchScreen" "SendCoreEvents"

into "ServerLayout" section solve the problem, but
the drawback is that device name e.g. "/dev/input/event4"
in my case is hard-coded in a config file...

Regards,
Denis.

On 9/02/2020 11:58 am, Denis Polygalov wrote:
> 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.
> 
>