Since kernel commit bbe3175408cde792fbaa5bd1e41e430ea9e4fb4f
(HID: input: fix input sysfs path for hid devices) available since v3.14,
Bluetooth input devices are registered on top of the HID parent, not
the Bluetooth one.
That means that libwacom currently consider their transport bus as hid,
instead of bluetooth or usb.
This change is also required for USB if the path is taken to switch from
a plain USB driver to a HID one (https://patchwork.kernel.org/patch/4454631/)
Signed-off-by: Benjamin Tissoires <email@example.com>
Signed-off-by: Peter Hutterer <firstname.lastname@example.org>