刚刚实现了wpa_supplicant的移植，遇到不少问题，记录一些
参考了厂家提供的代码和移植步骤，生成wpa_supplicant，再修改配置文件wpa_supplicant.conf如下
# WPA-PSK/TKIP
ctrl_interface=/var/run/wpa_supplicant
network={
ssid="Tenda" //ap name
key_mgmt=WPA-PSK
proto=WPA
pairwise=TKIP
group=TKIP
psk="12345678" //ap password
}
下载到开发板中，运行 wpa_supplicant -i rausb0 -c /etc/wpa_supplicant.conf -Dralink -B
报错：
ioctl[SIOCGIWAP]: Transport endpoint is not connected
ioctl[SIOCGIWAP]: Transport endpoint is not connected
ioctl[SIOCGIWAP]: Transport endpoint is not connected
不能用，考虑到加密类型是TKIP，而配置路由器时是AES，重新配置路由器
结果还是不能用，出现错误
ioctl[SIOCGIWAP]: Transport endpoint is not connected
ioctl[SIOCGIWAP]: Transport endpoint is not connected
ioctl[SIOCGIWAP]: Transport endpoint is not connected
ioctl[SIOCGIWAP]: Transport endpoint is not connected
# MlmeAssocReqAction(): WPA/WPAPSK, Fill the ReqVarIEs with CipherTmp!
rausb0 (WE) : Wireless Event too big (262)
尝试ping网关，不能ping通，利用iwconfig工具进行配置
iwconfig rausb0 key 12345678 essid "Tenda"
iwconfig rausb0 ap auto
输入iwconfig rausb0 查看
# iwconfig rausb0
rausb0 RT73 WLAN ESSID:"Tenda"
Mode:Managed Frequency=2.457 GHz Access Point: C8:3A:35:55:C3:D8
Bit Rate=1 Mb/s
RTS thr:off Fragment thr:off
Encryption key:1234-5678-00 Security mode:open
Link Quality=31/100 Signal level:-88 dBm Noise level:-115 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
Bit Rate=1 Mb/s，也ping不通网关，没连上。。。
考虑密码应该用ASCLL类型，使用认证的命令
#iwconfig rausb0 key s:12345678
其他步骤一样，还是连不上。。。。
于是想到可能是wpa_supplicant 运行出了问题，重新运行wpa_supplicant -i rausb0 -c /etc/wpa_supplicant.conf -Dralink，去掉-B（表示后台运行）
出现如下错误
ioctl[SIOCGIWAP]: Transport endpoint is not connected
ioctl[SIOCGIWAP]: Transport endpoint is not connected
ioctl[SIOCGIWAP]: Transport endpoint is not connected
ioctl[SIOCGIWAP]: Transport endpoint is not connected
# MlmeAssocReqAction(): WPA/WPAPSK, Fill the ReqVarIEs with CipherTmp!
rausb0 (WE) : Wireless Event too big (262)
Associated with 08:10:74:ab:82:46
CTRL-EVENT-EAP-STARTED EAP authentication started
EAP: buildIdentity: configuration was not available
Authentication with 08:10:74:ab:82:46 timed out.
ioctl[RT_PRIV_IOCTL] -- OID_802_11_SSID: Operation not supported
wpa_driver_ralink_get_associnfo: association success
Associated with 08:10:74:ab:82:46
提示配置文件不可用，百度谷歌查了资料加上语句
ctrl_interface_group=0
eapol_version=1
ap_scan=2
fast_reauth=1
依然有错
ioctl[SIOCGIWAP]: Transport endpoint is not connected
ioctl[SIOCGIWAP]: Transport endpoint is not connected
ioctl[SIOCGIWAP]: Transport endpoint is not connected
ioctl[SIOCGIWAP]: Transport endpoint is not connected
# MlmeAssocReqAction(): WPA/WPAPSK, Fill the ReqVarIEs with CipherTmp!
rausb0 (WE) : Wireless Event too big (262)
说什么Wireless Event too big (262)，不管，ping网关，居然ping通了,大喜。
