A community source database of game controller mappings to be used with SDL2 Game Controller functionality.
Download gamecontrollerdb.txt, place it in your app's directory and load with:
Creating new mappings:
To create new mappings, you can use the controllermap utility provided with SDL2, or using Steam's Big Picture mode, configure your joystick and then look in config/config.vdf in your Steam installation directory for the SDL_GamepadBind entry.
Checking your mappings:
You need to have python3 installed. Run
python3 check.py gamecontrollerdb.txt