Yup, I couldn’t get it working when I plugged in a USB keyboard either. I needed to do it through the PS2 connection on the XArcade. Then it’s a matter of making your mappings match with the available keys in inputcommon.c (see above post). I had to program the XArcade stick as well because I couldn’t figure out what the mappings were for a couple of the keys (I believe “]” in particular). It just takes some fiddling. Good Luck!
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