/*
 * HFVExplorer
 * Copyright (C) 1997-1999 by Anygraaf Oy
 * Author: Lauri Pesonen, email: lpesonen@clinet.fi
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

// max read requests, if larger -> STATUS_INVALID_PARAMETER
#define CDENABLE_MAX_TRANSFER_SIZE (0x10000)


// A structure representing the instance information associated with
// a particular device
typedef struct _DEVICE_EXTENSION
{
  // not needed.
  ULONG  StateVariable;
} DEVICE_EXTENSION, *PDEVICE_EXTENSION;


// Define the various device type values.  Note that values used by Microsoft
// Corporation are in the range 0-32767, and 32768-65535 are reserved for use
// by customers.
#define FILE_DEVICE_CDENABLE  0x00008301


// Target NT version, internal version
#define CDENABLE_CURRENT_VERSION  0x04000100


// Macro definition for defining IOCTL and FSCTL function control codes.  Note
// that function codes 0-2047 are reserved for Microsoft Corporation, and
// 2048-4095 are reserved for customers.
#define CDENABLE_IOCTL_READ           0x830
#define CDENABLE_IOCTL_GET_VERSION    0x831


#define IOCTL_CDENABLE_READ         CTL_CODE(FILE_DEVICE_CDENABLE,  \
                                             CDENABLE_IOCTL_READ,  \
                                             METHOD_BUFFERED,       \
                                             FILE_ANY_ACCESS)
#define IOCTL_CDENABLE_GET_VERSION  CTL_CODE(FILE_DEVICE_CDENABLE,  \
                                             CDENABLE_IOCTL_GET_VERSION,  \
                                             METHOD_BUFFERED,       \
                                             FILE_ANY_ACCESS)
