Dave --
If you have a driver for a dual-speed device, the driver needs to pay attention to high speed interrupt transfers.
Can you elaborate? What do I need to pay attention to?
Mostly just making urb->interval work right:
Full/low speed: urb->interval = desc->bInterval; High speed: urb->interval = (1 << desc->bInterval);
And of course:
ISO (full/high): urb->interval = (1 << desc->bInterval);
And if you're working in time values, adjust appropriately: high speed talks in micro-frames (125 usec), otherwise it's in frames (8 uframes == 1000 usec == 1 msec).
- Dave
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