IEEE80211_FC1_PWR_MGT
fc &= htole16(IEEE80211_FC1_PWR_MGT << 8);
#define IEEE80211_FCTL_PM (IEEE80211_FC1_PWR_MGT << 8)
IEEE80211_FC1_PWR_MGT);
if (((wh->i_fc[1] & IEEE80211_FC1_PWR_MGT) ^
wh->i_fc[1] & IEEE80211_FC1_PWR_MGT);
wh->i_fc[1] |= IEEE80211_FC1_PWR_MGT;
wh->i_fc[1] & IEEE80211_FC1_PWR_MGT ? "ena" : "dis");
wh->i_fc[1] |= IEEE80211_FC1_PWR_MGT;