Alan Stern wrote:
>
> However, it's important that the URB be completely finished before the
> routine returns. Remember that the completion handler _will_ be called
> eventually, no matter what. And urb->status isn't valid until the URB has
> completed.
>
It seems that a call to usb_unlink_urb() doesn't always mean that the URB
has completed. Is it due to the HCD that can't always complete the URB when
calling its urb_dequeue() method ?
> So if the initial wait_for_completion_timeout() times out, you need to do
> a second wait_for_completion().
>
Or maybe we can call usb_kill_urb() instead of usb_unlink_urb() ?
thanks
Franck
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