wdm设备驱动程序开发_windows驱动开发工具_u盘win7缺少驱动程序(5)

CTL_CODE(FILE_DEVICE_UNKNOWN,DEVICE_HELLO_INDEX+1,METHOD_BUFFERED,FILE_ANY_ACCESS)

#define erron GetLastError()

#define MY_DEVICE_NAME "\\\\.\\HelloWorld"

#define MY_DEVICE_START "-start"

#define MY_DEVICE_STOP "-stop"

BOOL DriverControl (TCHAR *Maik);

void Usage (TCHAR *Paramerter);

int main (int argc,TCHAR *argv[])

{

if (argc!=2)

{

Usage(argv[0]);

return 0;

}

if (strcmpi(argv[1],MY_DEVICE_START)==0 || strcmpi(argv[1],MY_DEVICE_STOP)==0)

DriverControl(argv[1]);

else

{

Usage(argv[0]);

return 0;

}

return 0;

}

BOOL DriverControl (TCHAR *Maik)

{

HANDLE hDevice=NULL; //设备句柄

DWORD RetBytes=0;

//获得设备句柄

hDevice=CreateFile(MY_DEVICE_NAME,GENERIC_READ |

GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);

if (hDevice==INVALID_HANDLE_VALUE)

{

#ifdef DEBUGMSG

printf("CreateFile() GetLastError reports %d\n",erron);

#endif

return FALSE;

}

//启动

if (strcmpi(Maik,MY_DEVICE_START)==0)

{

//传递启动的I/O控制代码

if (!(DeviceIoControl(hDevice,START_HELLPWORLD,NULL,0,NULL,0,&RetBytes,NULL)))

{

#ifdef DEBUGMSG

printf("DeviceIoControl() GetLastError reports %d\n",erron);

#endif

CloseHandle(hDevice);

return FALSE;

}

}

//停止

if (strcmpi(Maik,MY_DEVICE_STOP)==0)

{

//传递停止的I/O控制代码

if (!(DeviceIoControl(hDevice,STOP_HELLPWORLD,NULL,0,NULL,0,&RetBytes,NULL)))

{

#ifdef DEBUGMSG

printf("DeviceIoControl() GetLastError reports %d\n",erron);

#endif

CloseHandle(hDevice);

return FALSE;

}

}

if (hDevice)

CloseHandle(hDevice); //关闭句柄

return TRUE;

}

void Usage (TCHAR *Paramerter)

{

fprintf(stderr,"=======================================================================

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