HelenOS sources

IEEE80211_DATA_FRAME   76 uspace/lib/ieee80211/src/ieee80211.c 	    IEEE80211_DATA_FRAME;
IEEE80211_DATA_FRAME  194 uspace/lib/ieee80211/src/ieee80211.c 	    IEEE80211_DATA_FRAME;
IEEE80211_DATA_FRAME  620 uspace/lib/ieee80211/src/ieee80211.c 	    uint16_t_le2host(IEEE80211_DATA_FRAME) |
HelenOS homepage, sources at GitHub