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问题： 移植rtl8188cu USB wifi 应用界面打开wifi 时，按键亮，但是检测不到信息
描述:
调试应用界面时，应用界面打开wifi 时，按键亮，但是检测不到信息、log：
描述:
androidusbsocketusb wifi
运行命令行时，能检测到wifi信息wpa_supplicant -Dnl80211 -iwlan0 -c/data/misc/wifi/wpa_supplicant.conf &
wpa_cli -p/data/misc/wifi/wlan0 -iwlan0
调试应用界面时，应用界面打开wifi 时，按键亮，但是检测不到信息、log：
D/EVENT_THREAD( 152): void CEventThread::run() POLLIN event on Fd (1)
D/EVENT_THREAD( 152): void CEventThread::run() Do poll with timeout: -1
D/EVENT_THREAD( 152): void CEventThread::run() POLLIN event on Fd (1)
D/EVENT_THREAD( 152): void CEventThread::run() Do poll with timeout: -1
D/EVENT_THREAD( 152): void CEventThread::run() POLLIN event on Fd (1)
D/EVENT_THREAD( 152): void CEventThread::run() Do poll with timeout: -1
D/EVENT_THREAD( 152): void CEventThread::run() POLLIN event on Fd (1)
D/EVENT_THREAD( 152): void CEventThread::run() Do poll with timeout: -1
D/EVENT_THREAD( 152): void CEventThread::run() POLLIN event on Fd (1)
D/EVENT_THREAD( 152): void CEventThread::run() Do poll with timeout: -1
D/EthernetService( 483): interfaceAdded: wlan0
D/EthernetService( 483): addInterface: wlan0
D/EthernetService( 483): addInterface: I cannot manage wlan0
D/EVENT_THREAD( 152): void CEventThread::run() POLLIN event on Fd (1)
D/EVENT_THREAD( 152): void CEventThread::run() Do poll with timeout: -1
D/EVENT_THREAD( 152): void CEventThread::run() POLLIN event on Fd (1)
D/EVENT_THREAD( 152): void CEventThread::run() Do poll with timeout: -1
D/EVENT_THREAD( 152): void CEventThread::run() POLLIN event on Fd (1)
D/EVENT_THREAD( 152): void CEventThread::run() Do poll with timeout: -1
D/EVENT_THREAD( 152): void CEventThread::run() POLLIN event on Fd (1)
D/EVENT_THREAD( 152): void CEventThread::run() Do poll with timeout: -1
D/EVENT_THREAD( 152): void CEventThread::run() POLLIN event on Fd (1)
D/EVENT_THREAD( 152): void CEventThread::run() Do poll with timeout: -1
D/EVENT_THREAD( 152): void CEventThread::run() POLLIN event on Fd (1)
D/EVENT_THREAD( 152): void CEventThread::run() Do poll with timeout: -1
D/EthernetService( 483): interfaceLinkStateChanged for wlan0, up = false
D/EthernetService( 483): interfaceLinkStateChanged: I cannot manage wlan0
I/WAKELOCK_ACQUIRE( 483): TIMESTAMP=131971461074, TAG=AlarmManager, TYPE=PARTIAL_WAKE_LOCK , COUNT=0, PID=483, UID=1000, FLAGS=
I/WAKELOCK_RELEASE( 483): TIMESTAMP=131979823569, TAG=AlarmManager, TYPE=PARTIAL_WAKE_LOCK , COUNT=0, PID=483, UID=1000, FLAGS=
D/WifiService( 483): setWifiEnabled: true pid=775, uid=1000
W/CsmClient( 483): Calling start while there is no modem.
E/WifiHW ( 483): zhou:*****wifi_load_driver: vendor 1!
E/WifiHW ( 134): zhou:*****wifi_switch_driver_mode: vendor 1!
E/WifiHW ( 134): zhou:*****wifi_switch_driver_mode: vendor < MAX_VENDORS,2
D/SoftapController( 134): Softap fwReload - done
D/WifiHW ( 483): wpa_supplicant pid -1
D/CommandListener( 134): Setting iface cfg
D/CommandListener( 134): Trying to bring down wlan0
D/WifiCsmClient( 483): startAsync error com.intel.cws.cwsservicemanager.CsmException: No modem.
E/WifiHW ( 483): zhou:************p2p_supported = 0
E/WifiHW ( 483): ************wifi_start_supplicant,SUPPLICANT_NAME = wpa_supplicant,P2P_SUPPLICANT_NAME = p2p_supplicant
E/WifiHW ( 483): zhou:************supplicant_prop_name = init.svc.wpa_supplicant
E/WifiHW ( 483): zhou :ensure_config_file_exists config file = /data/misc/wifi/wpa_supplicant.conf
E/WifiHW ( 483): zhou :ensure_config_file_exists ret = -1
E/WifiHW ( 483): zhou :ensure_config_file_exists srcfd = 194
E/WifiHW ( 483): zhou :ensure_config_file_exists destfd = 198
E/WifiHW ( 483): zhou:************primary_iface = wlan0
E/WifiHW ( 483): zhou:************supplicant_name = wpa_supplicant
E/WifiHW ( 483): zhou:************count = 200
E/WifiHW ( 483): zhou:************running
D/WifiMonitor( 483): startMonitoring(wlan0) with mConnected = false
E/WifiHW ( 483): zhou :wifi_connect_on_socket_path,before property_get
E/WifiHW ( 483): zhou :wifi_connect_on_socket_path,wpa_ctrl_open(path)
I/wpa_supplicant( 1296): wpa_supplicant v2.0-devel-4.4.4_rtw_r11967.20140818
I/wpa_supplicant( 1296): define REALTEK_WIFI_VENDOR
D/wpa_supplicant( 1296): random: Trying to read entropy from /dev/random
D/wpa_supplicant( 1296): Global control interface '@android:wpa_wlan0'
D/wpa_supplicant( 1296): Using Android control socket 'wpa_wlan0'
I/wpa_supplicant( 1296): Successfully initialized wpa_supplicant
D/wpa_supplicant( 1296): Initializing interface 'wlan0' conf '/data/misc/wifi/wpa_supplicant.conf' driver 'nl80211' ctrl_interface 'N/A' bridge 'N/A'
D/wpa_supplicant( 1296): Configuration file '/data/misc/wifi/wpa_supplicant.conf' -> '/data/misc/wifi/wpa_supplicant.conf'
D/wpa_supplicant( 1296): Reading configuration file '/data/misc/wifi/wpa_supplicant.conf'
D/wpa_supplicant( 1296): update_c /> D/wpa