New controller detected by Emulationstation but not working in Retroarch - RetroPie Forum
Gamepad not working · Issue #11418 · libretro/RetroArch · GitHub
RetroArch: the ultimate all-in-one video game emulator - Linux Kamarada
I can't understand how to set up my controller in Retroarch -- the only available device in 'device index' is an unrelated gamepad, all my custom bindings are shown as "N/A" in