Auto Create Input Provider Config Entry for Available MT Hardware (linux only).¶
Thanks to Marc Tardif for the probing code, taken from scan-for-mt-device.
The device discovery is done by this provider. However, the reading of
input can be performed by other providers like: hidinput, mtdev and
linuxwacom. mtdev is used prior to other providers. For more
information about mtdev, check mtdev.
Here is an example of auto creation:
[input]
# using mtdev
device_%(name)s = probesysfs,provider=mtdev
# using hidinput
device_%(name)s = probesysfs,provider=hidinput
# using mtdev with a match on name
device_%(name)s = probesysfs,provider=mtdev,match=acer
# using hidinput with custom parameters to hidinput (all on one line)
%(name)s = probesysfs,
provider=hidinput,param=min_pressure=1,param=max_pressure=99
# you can also match your wacom touchscreen
touch = probesysfs,match=E3 Finger,provider=linuxwacom,
select_all=1,param=mode=touch
# and your wacom pen
pen = probesysfs,match=E3 Pen,provider=linuxwacom,
select_all=1,param=mode=pen
By default, ProbeSysfs module will enumerate hardware from the /sys/class/input device, and configure hardware with ABS_MT_POSITION_X capability. But for example, the wacom screen doesn’t support this capability. You can prevent this behavior by putting select_all=1 in your config line. Add use_mouse=1 to also include touchscreen hardware that offers core pointer functionality.