ok, so I have a PDP Fight Pad Pro controller, there is a cfg file with the same name in the autoconfig/hid folder of the RetroArch but it doesn't work no matter what I do
1 it's in the Wii section, so its pretty obvious what platform it isYou might want to tell them of what platform you are using retroarch. I'm not inclined in this stuff, but they do ask these things.
Also, did you set the retoarch to acknowlege you controller? In settings.