Neil Youngman wrote: > I would be surprised if the adapter didn't support bidirectional ECP/EPP > modes, but I could always be wrong. It was advertised as a printer adapter. > There may be some modes required for scanners that it doesn't support, > however I suspect that the problem is more likely to be SANE assuming that > parallel port devices are only found on parallel ports and not on USB. Does > anyone know if this is the case? > > Neil > > Then be prepared to be surprised. A USB serial gadget is a close emulation of a traditional serial port. A USB parallel gadget is not even vaguely similar to a traditional parallel port. The huge latency of USB means it would be impractical for it to work in the same way. This is a huge pain for a wide range of industrial gadgets, embedded development tools, and other gizmos which only work with a PC's parallel port. Even if you try written a custom for the USB gadget, the latency makes it useless for almost anything.
Regards, Steve
