Hello - I'm almost all done... got my shutdown button working, my joystick and keyboard working for all the mam4all games, my sound working fine.... the one last thing I cant get working is configuring the "select" button on the mame4all rom list view. the joystick works to move to the next rom to highlight, but I cant select a ROM without using my 'ENTER' key on my keyboard. where can I configure the select button to one of my joystick buttons? thanks!
thanks! solved! I had trouble figuring out which was the botton numbers but jstest worked great.. the I used the numbers found in jstest into controller.yaml as you suggested
sudo apt-get install joystick
Then you can run jstest and confirm your joystick is working as expected:
jstest /dev/input/js0
(replace js0 with js1, js2, etc. if you have multiple joysticks plugged in)