MLX_CMD_ENQUIRY_OLD
mlx_enquire(sc, (sc->mlx_iftype == MLX_IFTYPE_2) ? MLX_CMD_ENQUIRY_OLD : MLX_CMD_ENQUIRY,
case MLX_CMD_ENQUIRY_OLD:
if ((meo = mlx_enquire(sc, MLX_CMD_ENQUIRY_OLD, sizeof(struct mlx_enquiry_old), NULL)) == NULL) {