L2CAP_DEFAULT_MTU
chan->omtu = L2CAP_DEFAULT_MTU;
if (chan->imtu != L2CAP_DEFAULT_MTU) {
chan->omtu && chan->omtu != L2CAP_DEFAULT_MTU)
mtu = L2CAP_DEFAULT_MTU;
chan->omtu = L2CAP_DEFAULT_MTU;
chan->omtu = L2CAP_DEFAULT_MTU;
chan->omtu = L2CAP_DEFAULT_MTU;
chan->imtu = L2CAP_DEFAULT_MTU;
chan->imtu = L2CAP_DEFAULT_MTU;