ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX
!info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX] ||
duplex = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX]);
if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX,