与USB设备通讯 [英] Communication with USB device

问题描述

大家好！

我正在尝试开发与USB设备通信的程序.我刚刚开始使用一些功能，我需要一些帮助.
我写了下面的代码，当我编译它时，没有任何错误，但是当我运行它时，出现了以下错误:

 1> Rev  4  .obj:错误LNK2001:未解析的外部符号__RTC_Shutdown
1> Rev  4  .obj:错误LNK2001:未解析的外部符号__RTC_InitBase 

我知道上述错误与未链接某些库有关，但我不知道缺少哪些库，因此我认为这与我设置的项目类型有关……！
我设置了Win32控制台应用程序，但是我不确定这是正确的.
我正在阅读Jan Axelson的书，但我认为我需要设置环境的帮助，任何帮助将不胜感激.

 #include   ><   iostream  > 
 #include   <   fstream  > 
 #include   <  字符串 > 
 #include   <   Windows.h  > 

外部 " 
{
#include   ><  > 
 #include   " 
 #include   <   setupapi.h  > 
}

//  VOID HidD_GetHidGuid(OUT LPGUID HidGuid); 

 int  main()
{
//  GUID HidGuid; //GUID是指示全局变量的数据类型
//  HANDLE DeviceInfoSet; 

//  HidD_GetHidGuid(& HidGuid); 
//  DeviceInfoSet = SetupDiGetClassDevs(& HidGuid，NULL，NULL，DIGCF_PRESENT | DIGCF_INTERFACEDEVICE)； 
//  std :: cout<< DeviceInfoSet<< std :: endl; 
//  HidD_GetHidGuid(& HidGuid); 
返回  0 ;
} 

我还阅读了有关驱动程序的内容，我需要使用免费构建环境"或已检查的构建环境"来构建环境，但是当我只想通过另一个驱动程序与设备通信时，是否需要这样做.我的意思是我不想构建只与设备通信的驱动程序.

无论如何，希望我不要感到困惑.
亲切的问候，
Clio

解决方案

查看是否有帮助-
http://bytes.com/topic/net/answers/511307-where-rtc-libraries [^ ]
http://social.msdn.microsoft.com/Forums/是/vcgeneral/thread/a8bae441-ea35-4b68-bb4a-ea9b0e497449 [ http://forums.codeguru.com/showthread.php?t=346998 [ ^ ]

我尝试过

在CodeGuru上检查以下旧线程:1>Rev 4.obj : error LNK2001: unresolved external symbol __RTC_Shutdown 1>Rev 4.obj : error LNK2001: unresolved external symbol __RTC_InitBase

I know that the above errors are to do with not linking some libraries but I have no clue what ones are missing and so i''m thinking it''s something to do with the type of project i set up...!?
I set up a Win32 Console application but i''m not sure this is right.
I''m reading Jan Axelson''s books but I think I need help setting up the environment, any help would be greatly appreciated.

#include <iostream>
#include <fstream>
#include <string>
#include <Windows.h>

extern "C"
{
#include <hidclass.h>
#include "hidsdi.h"
#include <setupapi.h>
}

//VOID HidD_GetHidGuid(OUT LPGUID HidGuid);

int main()
{
	//GUID	HidGuid;		// GUID is a data type that indicates a global variable
	//HANDLE	DeviceInfoSet;

	//HidD_GetHidGuid(&HidGuid);
	//DeviceInfoSet = SetupDiGetClassDevs(&HidGuid, NULL, NULL, DIGCF_PRESENT|DIGCF_INTERFACEDEVICE);
	//std::cout << DeviceInfoSet << std::endl;
	// HidD_GetHidGuid(&HidGuid);
	return 0;
}

I also read stuff on drivers and that i need to build the environment using "free build environment" or "checked build environment", but do I need to do this when I just want to communicate with a device through another driver. I mean I don''t want to build a driver i just want to communicate with the device.

anyway, hope i''m not being to confusing.
Kind regards,
Clio

解决方案

See if these help -
http://bytes.com/topic/net/answers/511307-where-rtc-libraries[^]
http://social.msdn.microsoft.com/Forums/is/vcgeneral/thread/a8bae441-ea35-4b68-bb4a-ea9b0e497449[^]
http://forums.codeguru.com/showthread.php?t=346998[^]

I tried a few of those already, any other ideas?

Check this old thread on CodeGuru: http://forums.codeguru.com/showthread.php?t=346998[^]

The problem was solved by using these settings:
Project Explorer > Settings > Linker > Input >
- Additional dependencies: libcp.lib
- Ignore All default libraries : no
- ignore specific library : libc.lib


Soren Madsen

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