RTW_RXCTL_FS     1060 dev/ic/rtw.c   	    RTW_RXCTL_OWN | RTW_RXCTL_FS | RTW_RXCTL_LS;
RTW_RXCTL_FS     1070 dev/ic/rtwreg.h #define RTW_RXSTAT_FS		RTW_RXCTL_FS	/* first segment */