usb: chipidea: udc: zero-length packet is only needed for TX
The zero-length packet is the sendor tells the receiver that there is no more data, so it is only needed at the TX side. Signed-off-by: Peter Chen <peter.chen@freescale.com>
This commit is contained in:
parent
11a27098e8
commit
a4da4f12b4
|
@ -445,7 +445,7 @@ static int _hardware_enqueue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
|
|||
rest -= count;
|
||||
}
|
||||
|
||||
if (hwreq->req.zero && hwreq->req.length
|
||||
if (hwreq->req.zero && hwreq->req.length && hwep->dir == TX
|
||||
&& (hwreq->req.length % hwep->ep.maxpacket == 0))
|
||||
add_td_to_list(hwep, hwreq, 0);
|
||||
|
||||
|
|
Loading…
Reference in a new issue