get_media_mode
int get_media_mode(int, const char *);
mode = get_media_mode(IFM_TYPE(ifmr->ifm_ulist[0]), val);
int get_media_mode(int, const char *);
mode = get_media_mode(ifmr->ifm_ulist[0], val);
static ifmedia_t get_media_mode(ifmedia_t, const char *);