- /* 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.
+ /* Forces ->get_carrier() to poll 'netdev''s MII registers for link status
+ * instead of checking 'netdev''s carrier. 'netdev''s MII registers will
+ * be polled once ever 'interval' milliseconds. If 'netdev' does not
+ * support MII, another method may be used as a fallback. If 'interval' is
+ * less than or equal to zero, reverts ->get_carrier() to its normal
+ * behavior.