break; case 4: /* digital in jack */ case 7: /* line in jacks */ case 19: /* speaker out jacks */ case 20: /* headphones out jack */ break; default: snd_printd(KERN_DEBUG "memory change in unknown unit %d\n", unitid); break; 
static void snd_usb_mixer_memory_change(struct usb_mixer_interface *mixer,					int unitid){	/* SB remote control */	if (mixer->rc_type != RC_NONE && unitid == 0) {		/* read control code from device memory */		mixer->rc_urb->dev = mixer->chip->dev;		usb_submit_urb(mixer->rc_urb, GFP_ATOMIC);	}}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/aafad5629a949d0ad41180f8a746b6cd7654e317/usbmixer.c/clean/sound/usb/usbmixer.c