Would just like to chime in mentioning that I am experiencing the same issues – USB controllers work, but original SNES controller connected through ControlBlock is detected but unconfigurable. Also running with a 2.1 ControlBlock, LED and Power Button functionality working as expected.
Edit: SNES controller is configurable when classified as an “arcade” controller, but only one button (B) is recognised. Have resoldered twice to confirm connection.
This reply was modified 1 year, 2 months ago by sammycore.