Without this, my "Gasia Co.,Ltd PS(R) Gamepad" would not send
any events. Now everything works including the leds.
Based on work by Andrew Haines and Antonio Ospite.
cc: Antonio Ospite <ao2@ao2.it>
cc: Andrew Haines <AndrewD207@aol.com> Signed-off-by: Lauri Kasanen <cand@gmx.com> Reviewed-by: Antonio Ospite <ao2@ao2.it> Signed-off-by: Jiri Kosina <jkosina@suse.cz>