maybe I didn't get your question right, but:
It's quite normal PC-hardware, which I plug into the PCI slots.
The SBlive worked fine in a PC and so did the USB2.0 card, which is based on a NEC-Chipset.
Linux does know the USBcard and so it has a driver for it.
But the MorphOS doesn't even have a driver, that's why I suspect some problems with unhandled IRQs.
A card without a driver that is generating interrupts is probably technically broken..
Without attaching an interrupt handler, an unhandled IRQ will just fall back to the default handler which is to acknowledge it and pass back.
As for the NEC USB driver, MorphOS 2.2 should support it just fine..
Matt Sealey, Genesi USA Inc.
Product Development Analyst