Reply To: editing retroarch.cfg from /opt/retropie/configs/all doesnt do anyhthing

[Floob]

Mame uses its own config file (for controllers etc..)
SNES/NES etc.. use retroarch.cfg

This may help:

Xarcade2Jstick – Map your Xarcade Tankstick to Game Pads and use it with RetroPie