136 lines
2.7 KiB
C
136 lines
2.7 KiB
C
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/*++
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Copyright (c) 1991 Microsoft Corporation
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Module Name:
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chngcnt.c
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Abstract:
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User mode program to retrive media change counts from a scsi driver
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Author:
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13-May-1995 Peter Wieland (peterwie)
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Revision History:
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--*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <windows.h>
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#include <winioctl.h>
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#include <ntddpar.h>
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#include "..\..\..\..\inc\ntddvdm.h"
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int __cdecl main(int argc, char *argv[]) {
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HANDLE h;
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ULONG in;
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ULONG out;
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ULONG bytesBack;
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UCHAR cmd;
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ULONG num;
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UCHAR buf[128];
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ULONG ioctlCode;
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h = CreateFile(argv[1],
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GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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NULL,
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OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL,
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NULL);
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if(h == INVALID_HANDLE_VALUE) {
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printf("Error [%d] opening device %s\n", GetLastError(), argv[1]);
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return -1;
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}
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do {
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printf("Command>");
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fflush(stdout);
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if((gets(buf) == NULL) && (feof(stdin))) {
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printf("EOF - exiting\n");
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break;
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}
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cmd = 'x';
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num = 75;
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bytesBack = 0;
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in = out = 0xff;
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sscanf(buf, "%c %d", &cmd, &num);
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switch(cmd) {
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case 'c': {
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printf("IOCTL_VDM_PAR_WRITE_CONTROL_PORT %d\n", num);
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ioctlCode = IOCTL_VDM_PAR_WRITE_CONTROL_PORT;
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in = num;
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break;
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}
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case 's': {
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printf("IOCTL_VDM_PAR_READ_STATUS_PORT\n");
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ioctlCode = IOCTL_VDM_PAR_READ_STATUS_PORT;
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out = 0;
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break;
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}
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case 'w': {
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printf("IOCTL_VDM_PAR_WRITE_DATA_PORT %d\n", num);
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ioctlCode = IOCTL_VDM_PAR_WRITE_DATA_PORT;
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in = num;
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break;
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}
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case 'q': {
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printf("Quitting\n");
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goto Done;
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break;
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}
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default: {
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printf("Unknown command %c\n", cmd);
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ioctlCode = 0;
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break;
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}
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}
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if(ioctlCode == 0) {
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continue;
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}
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if(!DeviceIoControl(h,
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ioctlCode,
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&in,
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sizeof(in),
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&out,
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sizeof(out),
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&bytesBack,
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NULL )) {
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printf("Error [%d] sending ioctl\n", GetLastError());
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continue;
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} else {
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printf("Ioctl sent - %d bytes back - %d back\n", bytesBack, out);
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}
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} while(TRUE);
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Done:
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CloseHandle(h);
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return 0;
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}
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