I have my raspi set up with retropie, powered off of an approved powered usb hub, and I’m trying to use custom controllers built with MC Cthulhu PCBs. The documentation says they should be plug and play on Linux, but retropie doesn’t seem to recognize them during the initial controller setup. I have verified that they are plug and play on windows PCs and my PS3, but I have no idea how to even see if Linux is even seeing them. They are plugged into the usb hub, so power to the cthulhus shouldn’t be an issue, and if I got into startx, my keyboard and mouse work through the hub, so I don’t think it’s that. I can’t find anyone using the pi and cthulhu together, can anyone help?