IEEE80211_CHAN_HT40
IEEE80211_CHAN_HT40;
if (((chan)->ic_flags & IEEE80211_CHAN_HT40) != 0) {
(IEEE80211_CHAN_HT20 | IEEE80211_CHAN_HT40)
((_c)->ich_flags & IEEE80211_CHAN_HT40)
#define IEEE80211_CHAN_HT (IEEE80211_CHAN_HT20 | IEEE80211_CHAN_HT40)