diff --git a/include/nuttx/wireless/wireless.h b/include/nuttx/wireless/wireless.h
index a07a4cbf708..0b5367dbffd 100644
--- a/include/nuttx/wireless/wireless.h
+++ b/include/nuttx/wireless/wireless.h
@@ -197,6 +197,71 @@
 
 #define IW_SCAN_MAX_DATA    4096 /* Maximum size of returned data */
 
+/* SIOCSIWAUTH/SIOCGIWAUTH struct iw_param flags */
+
+#define IW_AUTH_INDEX   0x0FFF
+#define IW_AUTH_FLAGS   0xF000
+
+/* SIOCSIWAUTH/SIOCGIWAUTH parameters (0 .. 4095)
+ * (IW_AUTH_INDEX mask in struct iw_param flags; this is the index of the
+ * parameter that is being set/get to; value will be read/written to
+ * struct iw_param value field)
+ */
+
+#define IW_AUTH_WPA_VERSION          0
+#define IW_AUTH_CIPHER_PAIRWISE      1
+#define IW_AUTH_CIPHER_GROUP         2
+#define IW_AUTH_KEY_MGMT             3
+#define IW_AUTH_TKIP_COUNTERMEASURES 4
+#define IW_AUTH_DROP_UNENCRYPTED     5
+#define IW_AUTH_80211_AUTH_ALG       6
+#define IW_AUTH_WPA_ENABLED          7
+#define IW_AUTH_RX_UNENCRYPTED_EAPOL 8
+#define IW_AUTH_ROAMING_CONTROL      9
+#define IW_AUTH_PRIVACY_INVOKED      10
+
+/* IW_AUTH_WPA_VERSION values (bit field) */
+
+#define IW_AUTH_WPA_VERSION_DISABLED 0x00000001
+#define IW_AUTH_WPA_VERSION_WPA      0x00000002
+#define IW_AUTH_WPA_VERSION_WPA2     0x00000004
+
+/* IW_AUTH_PAIRWISE_CIPHER and IW_AUTH_GROUP_CIPHER values (bit field) */
+
+#define IW_AUTH_CIPHER_NONE          0x00000001
+#define IW_AUTH_CIPHER_WEP40         0x00000002
+#define IW_AUTH_CIPHER_TKIP          0x00000004
+#define IW_AUTH_CIPHER_CCMP          0x00000008
+#define IW_AUTH_CIPHER_WEP104        0x00000010
+
+/* IW_AUTH_KEY_MGMT values (bit field) */
+
+#define IW_AUTH_KEY_MGMT_802_1X      1
+#define IW_AUTH_KEY_MGMT_PSK         2
+
+/* IW_AUTH_80211_AUTH_ALG values (bit field) */
+
+#define IW_AUTH_ALG_OPEN_SYSTEM      0x00000001
+#define IW_AUTH_ALG_SHARED_KEY       0x00000002
+#define IW_AUTH_ALG_LEAP             0x00000004
+
+/* IW_AUTH_ROAMING_CONTROL values */
+
+#define IW_AUTH_ROAMING_ENABLE       0 /* driver/firmware based roaming */
+#define IW_AUTH_ROAMING_DISABLE      1 /* user space program used for roaming
+                                        * control */
+
+/* SIOCSIWENCODEEXT definitions */
+
+#define IW_ENCODE_SEQ_MAX_SIZE       8
+
+/* struct iw_encode_ext ->alg */
+
+#define IW_ENCODE_ALG_NONE           0
+#define IW_ENCODE_ALG_WEP            1
+#define IW_ENCODE_ALG_TKIP           2
+#define IW_ENCODE_ALG_CCMP           3
+
 /************************************************************************************
  * Public Types
  ************************************************************************************/
@@ -318,5 +383,20 @@ struct iw_event
   union iwreq_data   u;     /* Fixed IOCTL payload */
 };
 
+/* WPA support */
+
+struct  iw_encode_ext
+{
+  uint32_t   ext_flags;     /* IW_ENCODE_EXT_* */
+  uint8_t    tx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
+  uint8_t    rx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
+  struct sockaddr addr;     /* ff:ff:ff:ff:ff:ff for broadcast/multicast
+                             * (group) keys or unicast address for
+                             * individual keys */
+  uint16_t   alg;           /* IW_ENCODE_ALG_* */
+  uint16_t   key_len;
+  uint8_t    key[0];
+};
+
 #endif /* CONFIG_DRIVERS_WIRELESS */
 #endif /* __INCLUDE_NUTTX_WIRELESS_WIRELESS_H */