IEEE80211_CHAN_VHT20
#define IEEE80211_CHAN_VHT (IEEE80211_CHAN_VHT20 | IEEE80211_CHAN_VHT40 \
(((_c)->ic_flags & IEEE80211_CHAN_VHT20) != 0)
IEEE80211_CHAN_VHT20;
_RETURN_CHAN_BITS(IEEE80211_CHAN_VHT20 | IEEE80211_CHAN_HT20);
_RETURN_CHAN_BITS(IEEE80211_CHAN_VHT20 | IEEE80211_CHAN_HT20);
_RETURN_CHAN_BITS(IEEE80211_CHAN_VHT20 | IEEE80211_CHAN_HT20);
c = findvhtchan(ic, chan, IEEE80211_CHAN_VHT20);