a) One original 3 button MegaDrive pad
b) One original 2 button MasterSystem pad
c) One USB Megadrive 6 button pad
But on all this 3 case Retropie doesn’t recognize UP and LEFT, even if I’m performing “setup” both going trough the guided mode or trough the command line (sudo ./retropie_setup.sh).
To connect them to RaspberryPi I’m using an adapter that works perfectly under GNU/Linux emulators (Gens) on other machines under Ubuntu 12.04 (laptop or desktop).
I hope to find a solution 🙁
Thanx in advance for the help 🙂