I have retropie working on a raspberry pi 2, and I’m using a psx2 clone controller via one of those 2in1 usb blue adapters.
All the libretro emulators work well, all but lr-mame4all. Some roms work perfect (final fight, ghouls’n ghosts, outrun, etc…) but some others simply ignore the controller. An example is taito tetris, but there many others.
Has anybody else experienced this?
Where can I map the mame buttons to the retroarch controller?