1.0 {
  global:
    *MidiServer*;
    *MidiInServer*;
    *MidiServiceController*;
    *MidiDeviceManager*;
    *MidiDeviceDriver*;
    *ClientConnectionInServer*;
    *CallbackSlot*;
    *DeviceClientContext*;
    *UsbDriverCallback*;
    *EventSubscriber*;
    *MidiDeviceConnection*;
    *DeviceConnectionBase*;
    *DeviceConnectionForInput*;
    *DeviceConnectionForOutput*;
    *DeviceConnectionInfo*;
    *MidiListenerCallback*;
    *BleMidiTransportDeviceDriver*;
    *UsbMidiTransportDeviceDriver*;
    *DrainCounterFd*;
  local:
    *;
};