This adds udev rules/hwdb that sets RATBAG_DRIVER and RATBAG_SVG
properties to the event devices. We then use this property to select
the correct driver instead of checking the hardcoded list in the
drivers. Having this in a hwdb makes it easier for users to test
if drivers match their mouse with a system installed libratbag.
Each driver now has an "id" which is used to match the driver set
in RATBAG_DRIVER. A SVG can optionally be set as well.
All entries in the hwdb are currently without a name as that
information was not available in the hardcoded lists.
Note that this patch breaks the test-driver.
Two components are added here: a test driver that takes a struct
ratbag_test_device and sets that device up as a ratbag device.
That device is returned to the tests and then checked for sanity.
The ratbag_device_new_test_device() requires the environment variable
RATBAG_TEST set, otherwise we abort. It's also 'hidden' in a separate source
file, so it won't show up in doxygen. And if the test are disabled, this
function does nothing and the test driver never gets registered.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
