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usb: dwc3: gadget: pre-start Stream transfers when they're queued

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we need to pre-start stream transfers otherwise we
will never know when to start them.

Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe Balbi 2012-07-26 13:26:50 +03:00
parent bc5ba2e0b8
commit b997ada5db
1 changed files with 17 additions and 0 deletions
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17
drivers/usb/dwc3/gadget.c
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@ -1129,6 +1129,23 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
return ret;
}
/*
* 4. Stream Capable Bulk Endpoints. We need to start the transfer
* right away, otherwise host will not know we have streams to be
* handled.
*/
if (dep->stream_capable) {
int ret;
ret = __dwc3_gadget_kick_transfer(dep, 0, true);
if (ret && ret != -EBUSY) {
struct dwc3 *dwc = dep->dwc;
dev_dbg(dwc->dev, "%s: failed to kick transfers\n",
dep->name);
}
}
return 0;
}