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| author | Peter Chen <peter.chen@freescale.com> | 2015-07-28 10:08:32 +0800 |
|---|---|---|
| committer | Peter Chen <peter.chen@freescale.com> | 2015-08-14 09:16:46 +0800 |
| commit | a4da4f12b4a7e7072753ebae9b2ccd72b89c3392 (patch) | |
| tree | 6b3257aa51f7e03fa1a76c92225d29352985a175 | |
| parent | 11a27098e884b8eb797f1579ebc51cb0e0510cc3 (diff) | |
| download | op-kernel-dev-a4da4f12b4a7e7072753ebae9b2ccd72b89c3392.zip op-kernel-dev-a4da4f12b4a7e7072753ebae9b2ccd72b89c3392.tar.gz | |
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>
| -rw-r--r-- | drivers/usb/chipidea/udc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 27cbd1c..aca7a97 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -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); |
