EV_L2_DISC
{ST_L2_4, EV_L2_DISC, l2_send_DM},
{ST_L2_5, EV_L2_DISC, l2_send_DM},
{ST_L2_6, EV_L2_DISC, l2_send_UA},
{ST_L2_7, EV_L2_DISC, l2_stop_multi},
{ST_L2_8, EV_L2_DISC, l2_stop_multi},
ret = mISDN_FsmEvent(&l2->l2m, EV_L2_DISC, skb);