mptsas_poll
(void) mptsas_poll(mpt, cmd, MPTSAS_POLL_TIME);
rval = mptsas_poll(mpt, cmd, MPTSAS_POLL_TIME);
(void) mptsas_poll(mpt, cmd, pkt->pkt_time * 1000);
(void) mptsas_poll(mpt, cmd, pkt->pkt_time * 1000);
int mptsas_poll(mptsas_t *mpt, mptsas_cmd_t *poll_cmd, int polltime);