public HardwareManager()
{
OsxService.GlobalInit ();
this.diskArbiter = new OsxDiskArbiter ();
diskArbiter.DeviceAppeared += OnDeviceAppeared;
diskArbiter.DeviceChanged += OnDeviceChanged;
diskArbiter.DeviceDisappeared += OnDeviceDisappeared;
diskArbiter.StartListening ();
}