nsp_expect_signal
ret = nsp_expect_signal(SCpnt, phase, BUSMON_REQ);
static int nsp_expect_signal (struct scsi_cmnd *SCpnt,
ret = nsp_expect_signal(SCpnt, BUSPHASE_MESSAGE_IN, BUSMON_REQ);
ret = nsp_expect_signal(SCpnt, BUSPHASE_MESSAGE_OUT, BUSMON_REQ);