(There is an older post concerning this, but it was never answered, so…)
Purchased a couple of these adapters (http://www.amazon.com/gp/product/B002IXZ5DE/) to hook up 4 controllers to the Pi. Other than the fact that they require a powered USB hub, everything went smoothly and now I have retroarch.cfg configured to recognize 4 different controllers. Yay for that.
The problem I am seeing now is that the NES and SNES emulators can’t see 4 controllers. They only see two.
1. Do I have to purchase an authentic multitap to get this working?
2. If not, how can I get the 4 controllers to work?
After much research, I have determined that the problem lies in the emulators available…none of them support multitap emulation as of now. That’s rather disappointing. It looks like my only option will be to move to an HTPC and use zSNES. 🙁