[StructLayout(LayoutKind.Sequential,Pack=1)] struct Report_Read_Parameter {     byte Confirmation;     byte ListID;     [MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]     byte[] ParameterID;     byte Length;     [MarshalAs(UnmanagedType.ByValArray, SizeConst = ***)] // based on the Length     byte[] ParameterValue;     byte Status; }