diff options
Diffstat (limited to 'include/linux/usb/gadget.h')
| -rw-r--r-- | include/linux/usb/gadget.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index c3a61853cd1..c540557b564 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -345,12 +345,13 @@ static inline int usb_ep_queue(struct usb_ep *ep, * @ep:the endpoint associated with the request * @req:the request being canceled * - * if the request is still active on the endpoint, it is dequeued and its + * If the request is still active on the endpoint, it is dequeued and its * completion routine is called (with status -ECONNRESET); else a negative - * error code is returned. + * error code is returned. This is guaranteed to happen before the call to + * usb_ep_dequeue() returns. * - * note that some hardware can't clear out write fifos (to unlink the request - * at the head of the queue) except as part of disconnecting from usb. such + * Note that some hardware can't clear out write fifos (to unlink the request + * at the head of the queue) except as part of disconnecting from usb. Such * restrictions prevent drivers from supporting configuration changes, * even to configuration zero (a "chapter 9" requirement). */ |