#include?“stdafx.h“
#include?“pch.h“



#include?


//獲取設(shè)備的實例路徑
HRESULT
RetrieveDevicePath（
????_Out_bytecap_（BufLen）?LPTSTR?DevicePath
????_In_??????????????????ULONG??BufLen
????_Out_opt_?????????????PBOOL??FailureDeviceNotFound
????）;

HRESULT
OpenDevice（
????_Out_?????PDEVICE_DATA?DeviceData
????_Out_opt_?PBOOL????????FailureDeviceNotFound
????）
/*++

Routine?description:

????Open?all?needed?handles?to?interact?with?the?device.

????If?the?device?has?multiple?USB?interfaces?this?function?grants?access?to
????only?the?first?interface.

????If?multiple?devices?have?the?same?device?interface?GUID?there?is?no
????guarantee?of?which?one?will?be?returned.

Arguments:

????DeviceData?-?Struct?filled?in?by?this?function.?The?caller?should?use?the
????????WinusbHandle?to?interact?with?the?device?and?must?pass?the?struct?to
????????CloseDevice?when?finished.

????FailureDeviceNotFound?-?TRUE?when?failure?is?returned?due?to?no?devices
????????found?with?the?correct?device?interface?（device?not?connected?driver
????????not?installed?or?device?is?disabled?in?Device?Manager）;?FALSE
????????otherwise.

Return?value:

????HRESULT

--*/
{
????HRESULT?hr?=?S_OK;
????BOOL????bResult;

????DeviceData->HandlesOpen?=?FALSE;

????hr?=?RetrieveDevicePath（DeviceData->DevicePath
????????????????????????????sizeof（DeviceData->DevicePath）
????????????????????????????FailureDeviceNotFound）;

????if?（FAILED（hr））?{

????????return?hr;
????}
	//CreateFile創(chuàng)建文件句柄
????DeviceData->DeviceHandle?=?CreateFile（DeviceData->DevicePath//所要打開的she別名
??????????????????????????????????????????GENERIC_WRITE?|?GENERIC_READ//訪問模式
??????????????????????????????????????????FILE_SHARE_WRITE?|?FILE_SHARE_READ//共享模式
??????????????????????????????????????????NULL
??????????????????????????????????????????OPEN_EXISTING//創(chuàng)建方式
??????????????????????????????????????????FILE_ATTRIBUTE_NORMAL?|?FILE_FLAG_OVERLAPPED//文件屬性和標(biāo)志
??????????????????????????????????????????NULL）;

????if?（INVALID_HANDLE_VALUE?==?DeviceData->DeviceHandle）?{

????????hr?=?HRESULT_FROM_WIN32（GetLastError（））;
????????return?hr;
????}
	//WinUsb_Initialize為指定的file創(chuàng)建一個winusb句柄
????bResult?=?WinUsb_Initialize（DeviceData->DeviceHandle
????????????????????????????????&DeviceData->WinusbHandle）;

????if?（FALSE?==?bResult）?{

????????hr?=?HRESULT_FROM_WIN32（GetLastError（））;
????????CloseHandle（DeviceData->DeviceHandle）;
????????return?hr;
????}

????DeviceData->HandlesOpen?=?TRUE;
????return?hr;
}

VOID
CloseDevice（
????_Inout_?PDEVICE_DATA?DeviceData
????）
/*++

Routine?description:

????Perform?required?cleanup?when?the?device?is?no?longer?needed.

????If?OpenDevice?failed?do?nothing.

Arguments:

????DeviceData?-?Struct?filled?in?by?OpenDevice

Return?value:

????None

--*/
{
????if?（FALSE?==?DeviceData->HandlesOpen）?{

????????//
????????//?Called?on?an?uninitialized?DeviceData
????????//

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????4967424??2018-04-23?20:20??USB通信\usbdemo2\Debug\usbdemo2.pdb

?????文件???????9069??2018-04-09?14:39??USB通信\usbdemo2\OOI_QE65000.cat

?????文件???????2453??2018-04-09?14:39??USB通信\usbdemo2\OOI_QE65000.inf

?????文件???????2934??2018-04-23?20:20??USB通信\usbdemo2\usbdemo2\Debug\cl.command.1.tlog

?????文件??????72706??2018-04-23?20:20??USB通信\usbdemo2\usbdemo2\Debug\CL.read.1.tlog

?????文件???????1536??2018-04-23?20:20??USB通信\usbdemo2\usbdemo2\Debug\CL.write.1.tlog

?????文件??????16595??2018-04-23?20:20??USB通信\usbdemo2\usbdemo2\Debug\device.obj

?????文件??????????2??2018-04-23?20:20??USB通信\usbdemo2\usbdemo2\Debug\link-cvtres.read.1.tlog

?????文件??????????2??2018-04-23?20:20??USB通信\usbdemo2\usbdemo2\Debug\link-cvtres.write.1.tlog

?????文件??????????2??2018-04-23?20:20??USB通信\usbdemo2\usbdemo2\Debug\link.12608-cvtres.read.1.tlog

?????文件??????????2??2018-04-23?20:20??USB通信\usbdemo2\usbdemo2\Debug\link.12608-cvtres.write.1.tlog

?????文件??????????2??2018-04-23?20:20??USB通信\usbdemo2\usbdemo2\Debug\link.12608.read.1.tlog

?????文件??????????2??2018-04-23?20:20??USB通信\usbdemo2\usbdemo2\Debug\link.12608.write.1.tlog

?????文件???????2012??2018-04-23?20:20??USB通信\usbdemo2\usbdemo2\Debug\link.command.1.tlog

?????文件???????5692??2018-04-23?20:20??USB通信\usbdemo2\usbdemo2\Debug\link.read.1.tlog

?????文件???????1182??2018-04-23?20:20??USB通信\usbdemo2\usbdemo2\Debug\link.write.1.tlog

?????文件????????740??2018-04-23?16:49??USB通信\usbdemo2\usbdemo2\Debug\mt.command.1.tlog

?????文件????????656??2018-04-23?16:49??USB通信\usbdemo2\usbdemo2\Debug\mt.read.1.tlog

?????文件????????474??2018-04-23?16:49??USB通信\usbdemo2\usbdemo2\Debug\mt.write.1.tlog

?????文件???????1108??2018-04-23?16:49??USB通信\usbdemo2\usbdemo2\Debug\rc.command.1.tlog

?????文件???????3426??2018-04-23?16:49??USB通信\usbdemo2\usbdemo2\Debug\rc.read.1.tlog

?????文件????????478??2018-04-23?16:49??USB通信\usbdemo2\usbdemo2\Debug\rc.write.1.tlog

?????文件?????642604??2018-04-23?16:49??USB通信\usbdemo2\usbdemo2\Debug\stdafx.obj

?????文件????????915??2018-04-23?16:49??USB通信\usbdemo2\usbdemo2\Debug\usbdemo2.exe.embed.manifest

?????文件????????980??2018-04-23?16:49??USB通信\usbdemo2\usbdemo2\Debug\usbdemo2.exe.embed.manifest.res

?????文件????????640??2018-04-23?20:20??USB通信\usbdemo2\usbdemo2\Debug\usbdemo2.exe.intermediate.manifest

?????文件?????????58??2018-04-23?20:20??USB通信\usbdemo2\usbdemo2\Debug\usbdemo2.lastbuildstate

?????文件???????3278??2018-04-23?20:20??USB通信\usbdemo2\usbdemo2\Debug\usbdemo2.log

?????文件??????29342??2018-04-23?16:49??USB通信\usbdemo2\usbdemo2\Debug\usbdemo2.obj

?????文件???33816576??2018-04-23?16:49??USB通信\usbdemo2\usbdemo2\Debug\usbdemo2.pch

............此處省略105個文件信息