#define SPEED_1000 1000
#define SPEED_2500 2500
#define SPEED_10000 10000
+#define SPEED_UNKNOWN -1
/* Duplex, half or full. */
#define DUPLEX_HALF 0x00
#define DUPLEX_FULL 0x01
+#define DUPLEX_UNKNOWN 0xff
/* Which connector port. */
#define PORT_TP 0x00