DZ_PORT
line = DZ_PORT(minor(dev));
line = DZ_PORT(minor(dev));
line = DZ_PORT(minor(tp->t_dev));
line = DZ_PORT(c>>8);
line = DZ_PORT(csr >> 8);
const int line = DZ_PORT(minor(dev));
const int line = DZ_PORT(minor(dev));
struct tty *tp = sc->sc_dz[DZ_PORT(minor(dev))].dz_tty;
struct tty *tp = sc->sc_dz[DZ_PORT(minor(dev))].dz_tty;
struct tty *tp = sc->sc_dz[DZ_PORT(minor(dev))].dz_tty;
const int line = DZ_PORT(minor(dev));
return sc->sc_dz[DZ_PORT(minor(dev))].dz_tty;
line = DZ_PORT(minor(tp->t_dev));
const int line = DZ_PORT(minor(tp->t_dev));