bool EMI2Layer2::init () { if (! layer2_is_bus()) return false; return iface != 0; }
bool USBLayer2::init () { if (emi == 0) return false; if (! layer2_is_bus()) return false; return Layer2::init(); }
bool EMI1Layer2::init () { if (iface == 0) return false; if (! layer2_is_bus()) return false; return iface != 0; }
bool EMI2Layer2::init () { if (iface == 0) return false; if (! layer2_is_bus()) return false; return Layer2::init (); }