On 01/26/2012 07:49 PM, Alan Stern wrote:
Because the XHCI core re-ordered the data and status URB and status
completed before data. So the data urb got canceled.
That doesn't mean you received no data. No data means
urb->actual_length == 0, whereas cancelled means urb->status == -ENOENT
or -ECONNRESET. Those are two independent conditions; one can be true
without the other.
That's what would happen in this case. Since all the data was received
by the host, urb->actual_length would be nonzero -- even if urb->status
indicates an unlink.
If urb->actual_length gets updated then everything is okay.
Alan Stern
Sebastian
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