int a;
HANDLE hDevice =
CreateFile("\\\\.\\CNMDDK",
GENERIC_READ | GENERIC_WRITE,
0, // share mode none
NULL, // no security
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL); // no template
if (hDevice == INVALID_HANDLE_VALUE)
{
printf("Failed to obtain file handle to device: "
"%s with Win32 error code: %d\n",
"MyWDMDevice", GetLastError());
return 1;
}
UCHAR InputBuffer[10];
UCHAR OutputBuffer[10];
//将输入缓冲区全部置成0XBB
memset(InputBuffer, 0xBB, 10);
DWORD dwOutput;
//输入缓冲区作为输入，输出缓冲区作为输出
BOOL bRet;
bRet = DeviceIoControl(hDevice, IOCTL_TEST1, InputBuffer, 10, &OutputBuffer, 10, &dwOutput, NULL);
if (bRet)
{
printf("Output buffer:%d bytes\n", dwOutput);
for (int i = 0; i < (int)dwOutput; i++)
{
printf("%02X ", OutputBuffer[i]);
}
printf("\n");
}
bRet = DeviceIoControl(hDevice, IOCTL_TEST2, InputBuffer, 10, &OutputBuffer, 10, &dwOutput, NULL);
if (bRet)
{
printf("Output buffer:%d bytes\n", dwOutput);
for (int i = 0; i < (int)dwOutput; i++)
{
printf("%02X ", OutputBuffer[i]);
}
printf("\n");
}
bRet = DeviceIoControl(hDevice, IOCTL_TEST3, InputBuffer, 10, &OutputBuffer, 10, &dwOutput, NULL);
if (bRet)
{
printf("Output buffer:%d bytes\n", dwOutput);
for (int i = 0; i < (int)dwOutput; i++)
{
printf("%02X ", OutputBuffer[i]);
}
printf("\n");
}
CloseHandle(hDevice);
return 0;
