ahc_lookup_scb
scb = ahc_lookup_scb(ahc, scb_index);
scb = ahc_lookup_scb(ahc, scb_index);
scb = ahc_lookup_scb(ahc, scb_index);
scb = ahc_lookup_scb(ahc, scbindex);
scb = ahc_lookup_scb(ahc, scbindex);
scb = ahc_lookup_scb(ahc, scb_index);
scb = ahc_lookup_scb(ahc, scb_index);
pending_scb = ahc_lookup_scb(ahc, scb_tag);
scb = ahc_lookup_scb(ahc, scbid);
scb = ahc_lookup_scb(ahc, scb_index);
scb = ahc_lookup_scb(ahc, scb_index);
scb = ahc_lookup_scb(ahc, scb_index);
prev_scb = ahc_lookup_scb(ahc, prev_tag);
scb = ahc_lookup_scb(ahc, ahc->qinfifo[qinpos]);
scb = ahc_lookup_scb(ahc, ahc->qinfifo[qinstart]);
scb = ahc_lookup_scb(ahc, ahc->qinfifo[qintail]);
scb = ahc_lookup_scb(ahc, scb_index);
scbp = ahc_lookup_scb(ahc, scb_index);
scbp = ahc_lookup_scb(ahc, scbid);
scbp = ahc_lookup_scb(ahc, scbid);
scb = ahc_lookup_scb(ahc, scb_index);
ahc_lookup_scb(struct ahc_softc *ahc, u_int tag);
bus_scb = ahc_lookup_scb(ahc, ahc_inb(ahc, SCB_TAG));
pending_scb = ahc_lookup_scb(ahc, active_scb_index);