diff options
| author | Petr Cvek <petr.cvek@tul.cz> | 2016-08-17 13:36:57 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-08-31 10:06:04 +0300 |
| commit | 4fbac5206afd01b717d4bdc58793d471f3391b4b (patch) | |
| tree | da884fd091ed24cc5e7b823a494467e911970cfb /drivers/usb/gadget/function/f_uvc.c | |
| parent | ee5acabf5805612c72084276e0c215367a042d71 (diff) | |
| download | linux-4fbac5206afd01b717d4bdc58793d471f3391b4b.tar.xz | |
usb: gadget: uvc: Add missing call for additional setup data
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>
Diffstat (limited to 'drivers/usb/gadget/function/f_uvc.c')
| -rw-r--r-- | drivers/usb/gadget/function/f_uvc.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c index 29b41b5dee04..27ed51b5082f 100644 --- a/drivers/usb/gadget/function/f_uvc.c +++ b/drivers/usb/gadget/function/f_uvc.c @@ -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; } |