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usb: gadget: uvc: Add missing call for additional setup data

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Some UVC commands require additional data (non zero uvc->event_length).
Add usb_ep_queue() call, so uvc_function_ep0_complete() can be called
and send received data to the userspace.

Signed-off-by: Petr Cvek <petr.cvek@tul.cz>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Petr Cvek 2016-08-17 12:36:57 +02:00 committed by Felipe Balbi
parent ee5acabf58
commit 4fbac5206a
1 changed files with 7 additions and 0 deletions
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7
drivers/usb/gadget/function/f_uvc.c
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@ -258,6 +258,13 @@ uvc_function_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
memcpy(&uvc_event->req, ctrl, sizeof(uvc_event->req));
v4l2_event_queue(&uvc->vdev, &v4l2_event);
/* Pass additional setup data to userspace */
if (uvc->event_setup_out && uvc->event_length) {
uvc->control_req->length = uvc->event_length;
return usb_ep_queue(uvc->func.config->cdev->gadget->ep0,
uvc->control_req, GFP_ATOMIC);
}
return 0;
}