/*

   This Source Code Form is subject to the terms of the Mozilla Public

   License, v. 2.0. If a copy of the MPL was not distributed with this

   file, You can obtain one at http://mozilla.org/MPL/2.0/.

   Copyright (C) 2010 Michael Möller <mmoeller@openhardwaremonitor.org>

 */

 using System;

 using System.Runtime.InteropServices;

 namespace OpenHardwareMonitor.Hardware {

   [StructLayout(LayoutKind.Sequential, Pack = 1)]

   internal struct IOControlCode {

     private uint code;

     public IOControlCode(uint deviceType, uint function, Access access) :

       this(deviceType, function, Method.Buffered, access) { }

     public IOControlCode(uint deviceType, uint function, Method method, 

       Access access) 

     {

       code = (deviceType << 16) | 

         ((uint)access << 14) | (function << 2) | (uint)method;

     }

     public enum Method : uint {

       Buffered = 0,

       InDirect = 1,

       OutDirect = 2,

       Neither = 3

     }

     public enum Access : uint {

       Any = 0,

       Read = 1,

       Write = 2

     }

   }    

 }