HQM_PRODUCER
if ((flags & HQM_PRODUCER) == 0)
HQM_PRODUCER|HQM_RX);
HQM_PRODUCER|HQM_RX);
KASSERT(hqm->hqm_flags & HQM_PRODUCER);
KASSERT(hqm->hqm_flags & HQM_PRODUCER);
KASSERT((hqm->hqm_flags & HQM_PRODUCER) == 0);
HQM_PRODUCER | HQM_TX);