SCSIRATE
bus_space_write_1(iot, ioh, SCSIRATE, 0);
bus_space_write_1(iot, ioh, SCSIRATE,
bus_space_write_1(iot, ioh, SCSIRATE, 0);
scsirate = ahc_inb(ahc, SCSIRATE);
ahc_outb(ahc, SCSIRATE, scsirate);
ahc_outb(ahc, SCSIRATE, scsirate);
ahc_scsirate_print(ahc_inb(ahc, SCSIRATE), &cur_col, 50);