fxp_mdi_read
static int fxp_mdi_read(struct local *, int, int);
DPRINTF(("PHY %d (%04x.%04x)\n", fxp_mdi_read(sc, 1, 18),
fxp_mdi_read(sc, 1, 2), fxp_mdi_read(sc, 1, 3)));
int fxp_mdi_read(device_t, int, int, uint16_t *);
mii->mii_readreg = fxp_mdi_read;