+ /* Sets 'miimon' to true if 'netdev' is up according to its MII. If
+ * 'netdev' does not support MII, may fall back to another method or return
+ * EOPNOTSUPP.
+ *
+ * This function may be set to null if it would always return EOPNOTSUPP.
+ */
+ int (*get_miimon)(const struct netdev *netdev, bool *miimon);
+