AR8X16_REG_PORT_VLAN
reg = arswitch_readreg(sc->sc_dev, AR8X16_REG_PORT_VLAN(port));
err = arswitch_modifyreg(sc->sc_dev, AR8X16_REG_PORT_VLAN(port),
AR8X16_REG_PORT_VLAN(i),
AR8X16_REG_PORT_VLAN(i),
AR8X16_REG_PORT_VLAN(i),
reg = arswitch_readreg(sc->sc_dev, AR8X16_REG_PORT_VLAN(port));
AR8X16_REG_PORT_VLAN(port), 0xfff, pvid));