The driver currently only supports the Dual Arcade controller.
It fixes the negative axis event values (the devices sends -2) to match the
logical axis minimum of the HID report descriptor (the report announces -1).
It is needed because hid-input discards out of bounds values.
Signed-off-by: NOlivier Scherler <oscherler@ithink.ch>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>