ieee80211_setbit
ieee80211_setbit(ic->ic_chan_active, i);
ieee80211_setbit(ic->ic_chan_active, i);
ieee80211_setbit(im->im_chan_avail, i);
ieee80211_setbit(frm, r);
ieee80211_setbit(frm, r);
ieee80211_setbit(im->im_chan_scan,