sc_reg_drs
fdc->sc_reg_drs, type->rate);
bus_space_write_1(t, h, fdc->sc_reg_drs, DRS_RESET);
bus_space_write_1(t, h, fdc->sc_reg_drs, 0);
bus_space_write_1(t, h, fdc->sc_reg_drs, DRS_RESET);
bus_space_write_1(t, h, fdc->sc_reg_drs, 0);
fdc->sc_reg_drs, type->rate);
*fdc->sc_reg_drs = type->rate;
*fdc->sc_reg_drs = DRS_RESET;
*fdc->sc_reg_drs = 0;