[Guid("32bb8320-b41b-11cf-a6bb-0080c7b2d682"), InterfaceType(System.Runtime.InteropServices.ComInterfaceType.InterfaceIsIUnknown)]
    public unsafe interface IDaqLDevice
    {
        IntPtr OpenLDevice();
        L_Result LoadBios(string Filename);
        L_Result PlataTest();
        L_Result GetSlotParam(ref SLOT_PAR slPar);
        L_Result ReadPlataDescr(void* pd);
     // L_Result IoAsync(PDAQ_PAR sp);
     // L_Result RequestBufferStream(ref uint Size, uint StreamId = L_STREAM_ADC);
     // L_Result SetParametersStream(PDAQ_PAR sp, ref uint UsedSize, ref IntPtr Data, ref IntPtr Sync, uint StreamId = L_STREAM_ADC);
     // L_Result FillDAQparameters(PDAQ_PAR sp); 
     // L_Result InitStartLDevice();
     // L_Result StartLDevice();
     // L_Result StopLDevice();
     // L_Result CloseLDevice();
    }

static unsafe void Main(string[] args)
       {
            var Dev = LComp.CreateDevice(0);
            Console.WriteLine("OpenLDevice: {0}", Dev.OpenLDevice());
            var par = new SLOT_PAR();
            Console.WriteLine("GetSlotParam: {0}", Dev.GetSlotParam(ref par));
            Console.WriteLine("LoadBIOS: {0}", Dev.LoadBios("E440") );

            var arr = new byte[256];
            fixed (void* pd = &arr[0] )
            {
                Console.WriteLine("ReadPlataDescr: {0}", Dev.ReadPlataDescr(pd));
            }
            Console.ReadLine();
        }