I've been working on a fork to use the mouse serial input as a serial input so I can send it USBHID commands to output as PS/2
I've had compilation issues and had to gut the menu to make enough room, but I'm close. Well Google and I, I lack the mental capacity to compare hex files.
Odd thing, v1.1.4 worked great with an industrial PC and a Genovation USBHID programable keypad CP24USBHID. So that is the branch I am using.
However 1.1.5 and 1.1.6 install using the release files, the button works and lights up, but there's no register of any input from USB using the same controller.
Finally the award for best variable name goes to you, I'll let others find it but I'm often at a count of 0.