Am Samstag, 30. Juni 2007 schrieb Alan Stern:
> I don't know; it might be better to omit iso_fields and have a separate
>
> usb_alloc_iso_frames(struct urb *urb, unsigned num_frames,
> gfp_t mem_flags)
>
> routine. After all, lots of URBs aren't Iso.
That seems incompatible with preallocating resources, if the HCD includes
an array of transfer descriptors in the private parts of its URBs.
> Also, do you intend to set URB_FREE_BUFFER and allocate the transfer
> buffer if and only if max_length > 0?
Without an explicit request? No.
Regards
Oliver
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