Adding uhci_endpoint_disconnect() will resolve the disconnect() path issue.
In fact, once that's added, drivers could even start to get rid of all urb unlink calls in their disconnect() logic, enabling that "fire and forget" model.
Remember the non-hcd drivers. Do they implement disable_endpoint() in the right way?
Well, if they're going to run on 2.6 they certainly should ... :)
Right now the only such old-style HCD in the kernel tree is the SL-811 code, and it allegedly doesn't work. Old-style HCDs are by and large found in embedded Linux systems, and most of those folk haven't started moving to 2.6 kernels. They'll have to update USB drivers as well as everything else.
- Dave
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