bpfxattach
bpfxattach(&q->q_bpf, q->q_name,
bpfxattach(&q->bpf, q->intrname,
bpfxattach(driverp, ifp->if_xname, ifp, dlt, hdrlen);
void *bpfxattach(caddr_t *, const char *, struct ifnet *, u_int, u_int);