Just posting to give thanks to feederchain for this fix.
I was having issue with the RPi recognizing 22 buttons but only 2 axes, so both joysticks controlled the same player. This fixed that by splitting the controls so that RPi sees the Xin Mo as to separate joypads: #1 – 2 axes and 10 buttons, and #2 – 2 axes and 12 buttons.
