4 Oct 2019, 13:28

@gkm not entirely sure this is exactly what you need, but in the following topic they talk a lot about analog input devices.

https://github.com/libretro/mame2003-plus-libretro/issues/399#issuecomment-457024703

It might be just a configuration thing... contacting the people there might give you insights as I really belive I've read spinners do work with mame2003plus.

See:
https://docs.libretro.com/library/mame2003_plus/#mouse-and-trackball-support

https://retropie.org.uk/forum/topic/17766/mame2003-plus-hundreds-of-new-games-improved-input-features-new-bugs-now-with-runahead-support/854