snd_urb_ops 194 sound/usb/usbaudio.c struct snd_urb_ops ops; /* callbacks (must be filled at init) */ snd_urb_ops 653 sound/usb/usbaudio.c static struct snd_urb_ops audio_urb_ops[2] = { snd_urb_ops 668 sound/usb/usbaudio.c static struct snd_urb_ops audio_urb_ops_high_speed[2] = {