XENSND_OP_CLOSE   123 sound/xen/xen_snd_front.c 	req = be_stream_prepare_req(evtchnl, XENSND_OP_CLOSE);
XENSND_OP_CLOSE    50 sound/xen/xen_snd_front_evtchnl.c 		case XENSND_OP_CLOSE: