GO : Group Owner
GC : Group Client
WIFI Direct API Guide
http://developer.android.com/guide/topics/connectivity/wifip2p.html
WIFI SDK
ㆍaddr: frameworks/base/wifi/java/android/net/wifi/p2p/ files: WifiP2pConfig.java , WifiP2pDevice.java, WifiP2pDeviceList.java , WifiP2pGroup.java , WifiP2pInfo.java ,WifiP2pManager.java, WifiP2pServiceInfo.java, WifiP2pServiceRequest.java ㆍaddr: frameworks/base/wifi/java/android/net/wifi/p2p/nsd/ files: WifiP2pDnsSdServiceInfo.java , WifiP2pDnsSdServiceRequest.java WifiP2pUpnpServiceInfo.java,WifiP2pUpnpServiceRequest.java
http://developer.android.com/reference/android/net/wifi/p2p/package-summary.html
http://developer.android.com/reference/android/net/wifi/p2p/nsd/package-summary.html
WIFI Service
file: frameworks/base/wifi/java/android/net/wifi/p2p/WifiP2pService.java
WIFI JNI
file: frameworks/base/core/jni/android_net_wifi_Wifi.cpp or file: frameworks/base/core/jni/android_net_wifi_WifiNative.cpp
WIFI HAL
file: hardware/libhardware_legacy/wifi/wifi.c (driver load & control)
WPA_Supplicant Controller
file: external/wpa_supplicant_8/src/common/wpa_ctrl.c
WPA_Supplicant (wpa_supplicant)
ㆍaddr: external/wpa_supplicant_8/ - Socket control (wlan0) file: wpa_supplicant/ctrl_iface_unix.c - Network Driver control file: src/l2_packet/l2_packet_linux.c - Driver wrapper by using socket file: src/drivers/driver_nl80211.c file: src/drivers/driver_wext.c ......
2. WIFI P2P Android의 전체구조도
그림출처
http://blog.chinaunix.net/uid-22415790-id-3651048.html
3. Wifi Direct 기본설명
Wifi Direct , 초기에는 WI-FI P2P라고 불리었으며, 현재 개인들 뿐만 아니라 여러장비들과 서로 통신을 제공을 하고 있습니다
그리고, 여기에 확장 기능들이 들어가고 있습니다.
- Automated setup
- Universal Plug and Play (UPnP),
- Devices Profile for Web Services (DPWS),
- Zero Configuration Networking (ZeroConf)
http://www.wi-fi.org/news-events/newsroom/wi-fi-certified-wi-fi-direct-now-included-in-dlna-interoperability-guidelines
New uses
위에서 설명했듯이, 개인들과 통신 뿐만아니라 여러장비를 제공을 위해서 새로운 App을 지속적으로 개발 중입니다.
Ref
http://en.wikipedia.org/wiki/Wi-Fi_Direct
http://wireless.kernel.org/en/developers/p2p
WIFI Direct Demo
http://www.androidside.com/docs/resources/samples/WiFiDirectDemo/index.html
http://hackerj.tistory.com/33
Other Ref. (Spec)
http://www.wi-fi.org/discover-wi-fi/wi-fi-direct
4. RealTek WIFI Direct
출처:http://dishingtech.blogspot.kr/2012/01/realtek-wi-fi-direct-programming-guide.html |
출처:http://dishingtech.blogspot.kr/2012/01/realtek-wi-fi-direct-programming-guide.html |
https://5ebe640fc109686c84adf909d706d596a18b3ce0.googledrive.com/host/0B6hvW6XtZ2CdZFlLcjZObjl2YXM/linux/document/RTK_P2P_WFD_Programming_guide.pdf
아래와 같이 one to one or one to multiple 도 가능하다.
출처: http://www.digikey.com/US/EN/techzone/wireless/resources/articles/Wi-Fi-Direct-adds-Peer-to-Peer-Capabilities.html |
댓글 없음 :
댓글 쓰기