@dankcushions
The devices report more than just a VID and PID number then, correct? Because you'll see different text show up for different controllers (like Mayflash, or RetroUSB, iBuffalo, etc), and the config files get named differently as well.
And I will run that command when I get home, thanks. I only have I think 2 different quasi-generic brands of SNES controllers at home now (maybe a third this weekend if it comes in) - gave the others away. I'll see what my Hyperkin Genesis says too as that one is also generic for some reason (think I have a Tomee? NES one as well). My iBuffalo we know is fine and unique.