usb_stream_start 326 sound/usb/usx2y/us122l.c err = usb_stream_start(&us122l->sk); usb_stream_start 642 sound/usb/usx2y/us122l.c err = usb_stream_start(&us122l->sk); usb_stream_start 108 sound/usb/usx2y/usb_stream.h int usb_stream_start(struct usb_stream_kernel *);