rt2560_set_bssid
static void rt2560_set_bssid(struct rt2560_softc *, const uint8_t *);
rt2560_set_bssid(sc, ieee80211broadcastaddr);
rt2560_set_bssid(sc, vap->iv_bss->ni_bssid);
rt2560_set_bssid(sc, ni->ni_bssid);