+/* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
+#define IEEE80211_HT_EXT_CAP_PCO 0x0001
+#define IEEE80211_HT_EXT_CAP_PCO_TIME 0x0006
+#define IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT 1
+#define IEEE80211_HT_EXT_CAP_MCS_FB 0x0300
+#define IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT 8
+#define IEEE80211_HT_EXT_CAP_HTC_SUP 0x0400
+#define IEEE80211_HT_EXT_CAP_RD_RESPONDER 0x0800
+