IEEE80211_CHAN_VHT40D
IEEE80211_CHAN_VHT40D,
flags |= IEEE80211_CHAN_VHT40D;
#define IEEE80211_CHAN_VHT40 (IEEE80211_CHAN_VHT40U | IEEE80211_CHAN_VHT40D)
(((_c)->ic_flags & IEEE80211_CHAN_VHT40D) != 0)
IEEE80211_CHAN_VHT40D;
_RETURN_CHAN_BITS(IEEE80211_CHAN_VHT40D | vhtflags);
_RETURN_CHAN_BITS(IEEE80211_CHAN_VHT40D | vhtflags);
c = findvhtchan(ic, chan, IEEE80211_CHAN_VHT40D);