snd_usb_endpoint_start   22 sound/usb/endpoint.h int  snd_usb_endpoint_start(struct snd_usb_endpoint *ep);
snd_usb_endpoint_start  224 sound/usb/pcm.c 		err = snd_usb_endpoint_start(ep);
snd_usb_endpoint_start  253 sound/usb/pcm.c 		err = snd_usb_endpoint_start(ep);