在VC++中使用PID和VID函数检测USB设备的问题

我想开发一个API来检测USB设备是否已连接到我的USB端口。我使用MAX3420e作为我的USB设备，通过MSP430 uC进行控制。我几乎没有VC++的知识，而且我一直在阅读USB complete，其中提到了一个关于如何检测USB设备及其相关功能的示例代码...我写了一个小代码，它会查找PID和连接的USB设备的VID ......不过，我收到以下错误：在VC++中使用PID和VID函数检测USB设备的问题

错误LNK2019：无法解析的外部符号 “布尔__cdecl HidD_GetAttributes（void *的，结构_HIDD_ATTRIBUTES *）”（HidD_GetAttributes @@ YA_NPAXPAU_HIDD_ATTRIBUTES @ @@ Z）功能_wmain引用

任何人都可以请让我知道我会去哪里错？谢谢...

// usb-complete-3.cpp : Defines the entry point for the console application. 
// 

#include "stdafx.h" 
#include "windows.h" 
#include "stdio.h" 
#include "winusb.h" 
#include "Usb100.h" 
#include "Setupapi.h" 

HANDLE hDevInfo; 
GUID HidGuid; 

SP_DEVICE_INTERFACE_DATA   devInfoData; 
int MemberIndex; 
LONG Result; 
//SP_DEVICE_INTERFACE_DATA   devInfoData; 
HANDLE        DeviceHandle; 
ULONG        Length; 
ULONG        Required; 
PSP_DEVICE_INTERFACE_DETAIL_DATA detailData; 

typedef struct _HIDD_ATTRIBUTES { 
ULONG Size; 
USHORT VendorID; 
USHORT ProductID; 
USHORT VersionNumber; } 
HIDD_ATTRIBUTES, *PHIDD_ATTRIBUTES; 


void HidD_GetHidGuid(OUT LPGUID HidGuid) 
{}; 

void *SetupDiGetClassDevs(
IN LPGUID ClassGuid, OPTIONAL 
IN PCTSTR Enumerator, OPTIONAL 
IN HWND hwndParent, OPTIONAL 
IN DWORD Flags){return (0);} 



void *SetupDiEnumDeviceInterfaces(
IN HDEVINFO DeviceInfoSet, 
IN PSP_DEVINFO_DATA DeviceInfoData, OPTIONAL 
IN LPGUID InterfaceClassGuid, 
IN DWORD MemberIndex, 
OUT PSP_DEVICE_INTERFACE_DATA 
DeviceInterfaceData){return (0);} 


bool 
HidD_GetAttributes(IN HANDLE HidDeviceObject,OUT PHIDD_ATTRIBUTES Attributes) ; 


WINSETUPAPI 
BOOL 
WINAPI 
    SetupDiGetDeviceInterfaceDetail(
    IN HDEVINFO DeviceInfoSet, 
    IN PSP_DEVICE_INTERFACE_DATA DeviceInterfaceData, 
    OUT PSP_DEVICE_INTERFACE_DETAIL_DATA DeviceInterfaceDetailData, OPTIONAL 
    IN DWORD DeviceInterfaceDetailDataSize, 
    OUT PDWORD RequiredSize, OPTIONAL 
    OUT PSP_DEVINFO_DATA DeviceInfoData OPTIONAL 
    ); 


int _tmain(int argc, _TCHAR* argv[]) 
{ 
    while(1) 
    { 
     HIDD_ATTRIBUTES Attributes; 

     HidD_GetHidGuid(&HidGuid); 

     hDevInfo=SetupDiGetClassDevs (&HidGuid,NULL, NULL,DIGCF_PRESENT|DIGCF_INTERFACEDEVICE); //get the device information 

     devInfoData.cbSize = sizeof(devInfoData); 

     SetupDiEnumDeviceInterfaces(hDevInfo,0,&HidGuid,MemberIndex,&devInfoData); // check for the enumerated devices 

     // The call will return with a "buffer too small" error which can be ignored. 

     Result = SetupDiGetDeviceInterfaceDetail(hDevInfo,&devInfoData,NULL,0,&Length,NULL);// Allocate memory for the hDevInfo structure, using the returned Length. 

     detailData =(PSP_DEVICE_INTERFACE_DETAIL_DATA)malloc(Length); 

     // Set cbSize in the detailData structure. 
     detailData -> cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);// Call the function again, this time passing it the returned buffer size. 

     Result = SetupDiGetDeviceInterfaceDetail(hDevInfo,&devInfoData,detailData,Length,&Required, NULL); 

     // Set the Size member to the number of bytes in the structure. 
     Attributes.Size = sizeof (Attributes) ; 

     HidD_GetAttributes(DeviceHandle,&Attributes); // get the PID and VID of the devices connected 

    } 
    return 0; 
}

来源

2011-06-01 user779825

有人找出了什么可能是什么问题？我真的很感激... @JohnB，非常感谢编辑代码，我真的无法弄清楚如何输入代码，因为这是我的第一篇文章 – user779825 2011-06-03 16:35:27

将setupapi.lib作为链接器输入选项卡中的附加依赖项。

来源

2012-08-21 10:20:29 ThunderBird

在VC++中使用PID和VID函数检测USB设备的问题

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