add_media
add_media(softc, media_type, supported_NRZ_speeds, 0, 0);
add_media(softc, media_type, 0, 0, supported_speeds2);
add_media(softc, media_type, 0, supported_pam4_speeds, 0);
add_media(softc, media_type, 0, 0, supported_speeds2);
add_media(softc, media_type, 0, 0, supported_speeds2);
int add_media)
if (add_media == 0)
const struct mii_phy_funcs *mpf, int add_media);