Android WiFi架構

1. wpa_supplicant - 用來控制WiFi的daemon

2. Java Frameworks

    frameworks/base/services/java/com/android/server/wifi/

    frameworks/base/wifi/java/android/net/wifi/

3. JNI

    frameworks/base/core/jni/android_net_wifi_Wifi.cpp

4. Legacy HAL(不同於stub HAL)

    hardware/libhardware_legacy/wifi/
5. wlan.ko - WiFi driver module

    wpa_supplicant透由wireless_ext(wext)與driver溝通