Hi jsarchibald and Syntho,
A thought has come to mind: if ye can get your hands on a development installer ISO of Mac OS 8.0, it might very well have proto-versions of the USB extensions. If my Mac history is correct, what became Mac OS 8.0 was in development as Mac OS 7.7 or 7.8 (which is still System 7 and therefore might be usable in Mac OS 7.6). The extensions are not in the Mac OS 8.0 release, so they may been still buggy at the time. They were released with the Bondi blue iMac and 8.1, so the drivers were around in 1998.
When I thought of proto-USB-drivers, i also wondered whether haplain has any lying in his wonderful collection. He might be a good person to ask.
A thought has come to mind: if ye can get your hands on a development installer ISO of Mac OS 8.0, it might very well have proto-versions of the USB extensions. If my Mac history is correct, what became Mac OS 8.0 was in development as Mac OS 7.7 or 7.8 (which is still System 7 and therefore might be usable in Mac OS 7.6). The extensions are not in the Mac OS 8.0 release, so they may been still buggy at the time. They were released with the Bondi blue iMac and 8.1, so the drivers were around in 1998.
When I thought of proto-USB-drivers, i also wondered whether haplain has any lying in his wonderful collection. He might be a good person to ask.