ieee80211_rate2plcp
ofs += 2*(ieee80211_rate2plcp(
plcp = __SHIFTIN(ieee80211_rate2plcp(rate, IEEE80211_T_OFDM),
plcp->i_signal = ieee80211_rate2plcp(rate, IEEE80211_T_CCK);
uint8_t ieee80211_rate2plcp(int, enum ieee80211_phytype);
u_int8_t ieee80211_rate2plcp(u_int8_t, enum ieee80211_phymode);