ng_l2cap_con_by_handle
con = ng_l2cap_con_by_handle(l2cap, con_handle);
con = ng_l2cap_con_by_handle(l2cap, ep->con_handle);
con = ng_l2cap_con_by_handle(l2cap, con_handle);
con = ng_l2cap_con_by_handle(l2cap, ep->con_handle);
con = ng_l2cap_con_by_handle(l2cap, ep->con_handle);
con = ng_l2cap_con_by_handle(l2cap, con_handle);
con = ng_l2cap_con_by_handle(l2cap, con_handle);
con = ng_l2cap_con_by_handle(l2cap, con_handle);
con = ng_l2cap_con_by_handle(l2cap,
ng_l2cap_con_p ng_l2cap_con_by_handle (ng_l2cap_p, u_int16_t);