diff options
| author | Jiri Kosina <jkosina@suse.cz> | 2014-06-04 13:09:01 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2014-06-04 13:09:01 +0200 |
| commit | af5666e0f76023d9c296016024297903a4c83108 (patch) | |
| tree | 9397e7a41dd3eb0c0e14a6407a8e8f12abed4fc5 /drivers/media/usb/uvc/uvc_video.c | |
| parent | 1b15d2e5b8077670b1e6a33250a0d9577efff4a5 (diff) | |
| parent | 368c96640d10a145da5f258f2d2833668d4f3629 (diff) | |
Merge branches 'for-3.15/upstream-fixes' and 'for-3.16/upstream' into for-linus
Conflicts:
drivers/hid/hid-sensor-hub.c
Diffstat (limited to 'drivers/media/usb/uvc/uvc_video.c')
| -rw-r--r-- | drivers/media/usb/uvc/uvc_video.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c index 898c208889cd..8d52baf5952b 100644 --- a/drivers/media/usb/uvc/uvc_video.c +++ b/drivers/media/usb/uvc/uvc_video.c @@ -1453,6 +1453,9 @@ static unsigned int uvc_endpoint_max_bpi(struct usb_device *dev, case USB_SPEED_HIGH: psize = usb_endpoint_maxp(&ep->desc); return (psize & 0x07ff) * (1 + ((psize >> 11) & 3)); + case USB_SPEED_WIRELESS: + psize = usb_endpoint_maxp(&ep->desc); + return psize; default: psize = usb_endpoint_maxp(&ep->desc); return psize & 0x07ff; @@ -1847,7 +1850,25 @@ int uvc_video_enable(struct uvc_streaming *stream, int enable) if (!enable) { uvc_uninit_video(stream, 1); - usb_set_interface(stream->dev->udev, stream->intfnum, 0); + if (stream->intf->num_altsetting > 1) { + usb_set_interface(stream->dev->udev, + stream->intfnum, 0); + } else { + /* UVC doesn't specify how to inform a bulk-based device + * when the video stream is stopped. Windows sends a + * CLEAR_FEATURE(HALT) request to the video streaming + * bulk endpoint, mimic the same behaviour. + */ + unsigned int epnum = stream->header.bEndpointAddress + & USB_ENDPOINT_NUMBER_MASK; + unsigned int dir = stream->header.bEndpointAddress + & USB_ENDPOINT_DIR_MASK; + unsigned int pipe; + + pipe = usb_sndbulkpipe(stream->dev->udev, epnum) | dir; + usb_clear_halt(stream->dev->udev, pipe); + } + uvc_queue_enable(&stream->queue, 0); uvc_video_clock_cleanup(stream); return 0; |