Windows与USB的通信

搞了三天，终于把windows的USB程序搞定了，虽然还存在一些问题，

mark一下方便以后使用。

#include <windows.h> //一定要加入该头文件
#include <iostream>extern "C"{
#include <hidsdi.h>
#include <setupapi.h>
#include <hidsdi.h>
}using namespace std;BOOL DeviceOpen(HANDLE&handle, WORD wVID, WORD wPID)
{BOOL bRet = FALSE;GUID hidGuid;HDEVINFO hardwareDeviceInfo;SP_INTERFACE_DEVICE_DATA deviceInfoData;PSP_INTERFACE_DEVICE_DETAIL_DATA functionClassDeviceData = NULL;ULONG predictedLength = 0;ULONG requiredLength = 0;CloseHandle(handle);handle = INVALID_HANDLE_VALUE;deviceInfoData.cbSize = sizeof(SP_INTERFACE_DEVICE_DATA);HidD_GetHidGuid(&hidGuid);hardwareDeviceInfo = SetupDiGetClassDevs(&hidGuid, NULL,NULL, (DIGCF_PRESENT|DIGCF_DEVICEINTERFACE));for (int i=0; i<128; i++){if (!SetupDiEnumDeviceInterfaces(hardwareDeviceInfo, 0,&hidGuid, i, &deviceInfoData)) continue;SetupDiGetDeviceInterfaceDetail(hardwareDeviceInfo, &deviceInfoData,NULL, 0, &requiredLength, NULL);predictedLength = requiredLength;functionClassDeviceData =(PSP_INTERFACE_DEVICE_DETAIL_DATA)malloc(predictedLength);if (!functionClassDeviceData) continue;functionClassDeviceData->cbSize = sizeof(SP_INTERFACE_DEVICE_DETAIL_DATA);if (!SetupDiGetDeviceInterfaceDetail (hardwareDeviceInfo,&deviceInfoData, functionClassDeviceData, predictedLength,&requiredLength, NULL)) break;handle = CreateFile(functionClassDeviceData->DevicePath,GENERIC_READ|GENERIC_WRITE, 0, NULL,OPEN_EXISTING, 0, NULL);// cout <<"devicePath"<<functionClassDeviceData->DevicePath<<endl;if (handle != INVALID_HANDLE_VALUE){HIDD_ATTRIBUTES attri;HidD_GetAttributes(handle, &attri);if ((attri.VendorID == wVID) && (attri.ProductID == wPID)){          cout <<"handle="<<handle<<",err="<<GetLastError()<<endl;printf("%x,%x\n",attri.VendorID,attri.ProductID);bRet = TRUE;break;}CloseHandle(handle);handle = INVALID_HANDLE_VALUE;// cout <<attri.VendorID<<" "<<attri.ProductID<<" "<<attri.VendorID<<" "<<attri.VersionNumber<<endl;}}SetupDiDestroyDeviceInfoList(hardwareDeviceInfo);return bRet;
}void DeviceClose(HANDLE &handle)
{CloseHandle(handle);handle = INVALID_HANDLE_VALUE;
}BOOL DeviceWrite(HANDLE &handle, LPCVOID lpBuffer, DWORD dwSize)
{if(handle==INVALID_HANDLE_VALUE){cout <<"DeviceWrite failed"<<endl;return 0;}BYTE rBuffer[64] = {0};DWORD dwRet;BOOL bRet;PHIDP_PREPARSED_DATA PreparsedData;HIDP_CAPS Capabilities;HidD_GetPreparsedData(handle,&PreparsedData);HidP_GetCaps(PreparsedData, &Capabilities);cout <<"Capabilities.OutputReportByteLength="<<Capabilities.OutputReportByteLength<<endl;rBuffer[0] = 0x0;  //第一个字节为report Id,一定需要
#if 0rBuffer[1] = 50;rBuffer[2] = 88;rBuffer[3] = 2;rBuffer[4] = 88;
#elsememcpy(rBuffer+1,lpBuffer,min(10,dwSize));
#endif//这里写的长度一定要是Capabilities.OutputReportByteLength，还不知道什么原因bRet = WriteFile(handle, rBuffer, Capabilities.OutputReportByteLength, &dwRet, NULL);cout <<"bRet="<<bRet<<" GetLastError="<<GetLastError()<<" dwRet="<<dwRet<<endl;return bRet;
}BOOL DeviceRead(HANDLE &handle, LPVOID lpBuffer, DWORD dwSize)
{if(handle==INVALID_HANDLE_VALUE){cout <<"DeviceWrite failed"<<endl;return 0;}BYTE rBuffer[128] = {0};DWORD dwRet;BOOL bRet;PHIDP_PREPARSED_DATA PreparsedData;HIDP_CAPS Capabilities;HidD_GetPreparsedData(handle,&PreparsedData);HidP_GetCaps(PreparsedData, &Capabilities);//memcpy(&wBuffer[2], lpBuffer, min(6, dwSize));COMMTIMEOUTS timeout;timeout.ReadIntervalTimeout = 0;timeout.ReadTotalTimeoutConstant = 0;timeout.ReadTotalTimeoutMultiplier = 1000;SetCommTimeouts(handle,&timeout);cout <<"timeout err="<<GetLastError()<<endl;cout <<"read Capabilities.OutputReportByteLength="<<Capabilities.OutputReportByteLength<<endl;//读的长度也一定要是Capabilities.OutputReportByteLengthbRet = ReadFile(handle, rBuffer, Capabilities.OutputReportByteLength, &dwRet, NULL);cout <<"bRet="<<bRet<<" GetLastError="<<GetLastError()<<" dwRet="<<dwRet<<endl;for (int i=0; i<dwRet; i++){printf("%x ",rBuffer[i]);}cout <<endl;// memcpy(lpBuffer, &rBuffer[1], min(7, dwSize));return bRet;
}int main(int argc, char* argv[])
{HANDLE handle=NULL;cout <<"handle="<<handle<<endl;//这两个参数的值能识别哪一个是你的设备if(DeviceOpen(handle,0x9219,0x1312)==FALSE){
//      cout <<"Device Open failed!"<<endl;   }cout <<"handle="<<handle<<endl;char data[10]={0};if(handle==INVALID_HANDLE_VALUE){cout <<"open device failed"<<endl;return 1;}data[0] = 50;data[1] = 88;data[2] = 2;data[3] = 88;DeviceWrite(handle,data,4);DeviceRead(handle,data,5);DeviceClose(handle);return 0;
}

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