libinput/udev/80-libinput-device-groups.rules

ACTION!="add|change", GOTO="libinput_device_group_end"
KERNEL!="event[0-9]*", GOTO="libinput_device_group_end"

ATTRS{phys}=="?*", \
	PROGRAM="libinput-device-group %S%p", \
	ENV{LIBINPUT_DEVICE_GROUP}="%c"

LABEL="libinput_device_group_end"
Add udev bits to assign LIBINPUT_DEVICE_GROUP The easiest way to get a device group is by looking at the phys path of the input device (which looks like usb-0000:00:14.0-1/input1) and dropping the /inputX bit. The rest is the same for devices that belong together (except on the Cintiq 22HD Touch). Ideally we could just take ATTRS{phys} but we can't select substrings to drop into ENV so we need to do it ourselves. This patch adds a callout that takes a syspath and prints the mangled path, to be used in LIBINPUT_DEVICE_GROUP. The rule triggers on any device that has a non-zero phys attribute, this groups devices like tablets together but also devices like mice with multiple interfaces. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Tested-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> 2015-02-10 14:23:32 +10:00			`ACTION!="add\|change", GOTO="libinput_device_group_end"`
			`KERNEL!="event[0-9]*", GOTO="libinput_device_group_end"`

			`ATTRS{phys}=="?*", \`
			`PROGRAM="libinput-device-group %S%p", \`
			`ENV{LIBINPUT_DEVICE_GROUP}="%c"`

			`LABEL="libinput_device_group_end"`