//========= Copyright Valve Corporation, All rights reserved. ============//

//

// Purpose:

//

// $NoKeywords: $

//

//=============================================================================//

#ifndef IOCTLCODES_H

#define IOCTLCODES_H

#pragma once

// Define the IOCTL codes we will use. The IOCTL code contains a command

// identifier, plus other information about the device, the type of access

// with which the file must have been opened, and the type of buffering.

// Device type -- in the "User Defined" range."

#define DEVICE_FILE_TYPE 40000

// The IOCTL function codes from 0x800 to 0xFFF are for customer use.

#define IOCTL_WRITE_MSR \

CTL_CODE( DEVICE_FILE_TYPE, 0x900, METHOD_BUFFERED, FILE_READ_ACCESS )

#define IOCTL_READ_MSR \

CTL_CODE( DEVICE_FILE_TYPE, 0x901, METHOD_BUFFERED, FILE_READ_ACCESS )

#endif IOCTLCODES_H