usbvision_begin_streaming  355 drivers/media/usb/usbvision/usbvision-video.c 			usbvision_begin_streaming(usbvision);
usbvision_begin_streaming  489 drivers/media/usb/usbvision/usbvision.h int usbvision_begin_streaming(struct usb_usbvision *usbvision);