用VS2005怎么样制作一个WinCE的驱动程序在WM6模拟器上运行？

sanqi 2007-8-2 16:40 楼主

我按照书上的例子创建了一个VS2005的基于WM6 SDK的Win32 DLL工程，然后输入源代码，如下
#include
#include

#define MAX_LENGTH 1024

HANDLE ghFile = NULL;

BOOL WINAPI DllEntryPoint(HANDLE hinstDLL, DWORD dwReason, LPVOID lpReserved)
{
return TRUE;
}

DWORD LOG_Init(DWORD dwContext)
{
ghFile = NULL;
return 1;
}

DWORD LOG_Deinit(DWORD dwContext)
{
ghFile = NULL;
return 1;
}

DWORD LOG_Open(DWORD hDeviceContext, DWORD dwAccessCode, DWORD dwShareMode)
{
ghFile = ::CreateFile(L"\\driver_log.txt", GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ,
      NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
return (ghFile != INVALID_HANDLE_VALUE);
}

DWORD LOG_Close(DWORD hOpenContext)
{
if (ghFile != NULL && ghFile != INVALID_HANDLE_VALUE)
{
      ::CloseHandle(ghFile);
      ghFile = NULL;
      return TRUE;
}
return FALSE;
}

BOOL LOG_IOControl(DWORD hOpenContext,
               DWORD dwCode,
               PBYTE pBufIn,
               DWORD dwLenIn,
               PBYTE pBufOut,
               DWORD dwLenOut,
               PDWORD pdwActualOut)
{
return TRUE;
}

void LOG_PowerDown(DWORD hDeviceContext)
{

}

void LOG_PowerUp(DWORD hDeviceContext)
{

}

DWORD LOG_Read(DWORD hOpenContext, LPVOID pBuffer, DWORD dwCount)
{
DWORD dwActualCount = 0;
if (::ReadFile(ghFile, pBuffer, dwCount, &dwActualCount, NULL))
{
      return dwActualCount;
}
return 0;
}

DWORD LOG_Seek(DWORD hOpenContext, long lAmount, DWORD dwType)
{
return 0;
}

DWORD LOG_Write(DWORD hOpenContext, LPCVOID pBuffer, DWORD dwCount)
{
DWORD dwActualCount = 0;
if (::WriteFile(ghFile, pBuffer, dwCount, &dwActualCount, NULL))
{
      return dwActualCount;
}
return 0;
}
然后创建一个def文件如下
LIBRARY"DriverLog"

EXPORTS

LOG_Init
LOG_Deinit
LOG_Open
LOG_Close
LOG_IOControl
LOG_PowerDown
LOG_PowerUp
LOG_Read
LOG_Seek
LOG_Write
编译成功之后，不知道如何部署并注册到 Windows Mobile 6 的模拟器上，所以就手动用 ActiveSync 把 DriverLog.dll 文件 copy 到模拟器的 \windows 目录下，然后手动在WM6模拟器上输入如下注册表值(通过 Remote Registry Editor)
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\DriverLog]
"Index" = dword:1
"Prefix" = "LOG"
"Dll" = "DriverLog.dll"
Order = dword:0
软重起模拟器

我的意图是创建一个虚拟的驱动程序，然后可以往 LOG1 端口里写入或者读取东西，可是为什么我的测试程序能够打开端口并写入，但是却读不出来，好像我的那个驱动根本就没有起作用？创建一个流接口的驱动程序的步骤到底应该怎么样？