Hi there,
I recently found out about libretro and I really love the idea.
I use a bliss-box 4play usb adapter to connect up to four different gamepads to my pc. You can get your’s here if you haven’t already: http://skunx7.wixsite.com/bliss-box
I talked to the creator of BlissBox about having a custom firmware made so the different pads always output what the retropad expects them to, based on these pictures I found in the retropie wiki: https://github.com/retropie/retropie-setup/wiki/retroarch-configuration He said if enough people are interested he might create that custom firmware.
I’d love for the bliss box to automatically work with libretro in the same way the I-PAC works with MAME Okay, maybe not exactly like that since I think you still need to setup one pad, preferrably the ps2 pad.
This is the layout I came up with: I’m not sure about the Sega Dreamcast because it uses analog triggers and the 6 button pads of sega genesis, saturn and pc-engine/turbografx-16 (I think the Genesis layout is best with the shoulder buttons of the saturn being the triggers) as well as the Nintendo GameCube since the wiki didn’t have a picture of that
edit: Ah, there is even an official facebook post about allowing remappings on the bliss-box