wifi
http://ko.wikipedia.org/wiki/BitBake
기본
http://blog.naver.com/hyunsung1026/80156573201
http://blog.naver.com/cjm9236/60199025987
응용
http://blog.naver.com/kpyopark/40211116126
http://blog.naver.com/cjm9236/60199026368
자세한 설명
http://blog.naver.com/hyunsung1026/80157033481
