USB应用程序开发Word文档下载推荐.docx
《USB应用程序开发Word文档下载推荐.docx》由会员分享，可在线阅读，更多相关《USB应用程序开发Word文档下载推荐.docx（17页珍藏版）》请在冰点文库上搜索。
hid.lib"
comctl32.lib"
#ifndefBULKUSBH_INC
#defineBULKUSBH_INC
#defineBULKUSB_IOCTL_INDEX
0x0000
#defineIOCTL_BULKUSB_GET_CONFIG_DESCRIPTOR
CTL_CODE（FILE_DEVICE_UNKNOWN,
/
BULKUSB_IOCTL_INDEX,/
METHOD_BUFFERED,
FILE_ANY_ACCESS）
#defineIOCTL_BULKUSB_RESET_DEVICE
BULKUSB_IOCTL_INDEX+1,/
FILE_ANY_ACCESS）
#defineIOCTL_BULKUSB_RESET_PIPE
CTL_CODE（FILE_DEVICE_UNKNOWN,
BULKUSB_IOCTL_INDEX+2,/
FILE_ANY_ACCESS）
externHANDLE
open_file（char*filename）;
externint
GetUsbPath（char*path）;
WriteUsb（HANDLEhUsb,char*Outbuff,intlen）;
ReadUsb（HANDLEhUsb,BYTEinbuff[],DWORD&
nBytesRead,intnToRead）;
3.2源文件usbport.cpp
#include"
usbport.h"
//8a3bf75d-83c7-440e-8276-5ae3f3ea6e77
DEFINE_GUID（GUID_CLASS_I82930_BULK,0x8a3bf75d,0x83c7,0x440e,0x82,0x76,0x5a,0xe3,0xf3,0xea,0x6e,0x77）;
BOOL
GetUsbDeviceFileName（LPGUID
pGuid,char*outNameBuf）;
HANDLE
OpenUsbDevice（LPGUID
OpenOneDevice（HDEVINFO
HardwareDeviceInfo,PSP_INTERFACE_DEVICE_DATA
DeviceInfoData,char*devName）;
int
ReadUsb（HANDLEhUsb,BYTEinbuff[],DWORD&
/*名称：
open_file
功能：
打开USB设备
参数：
filename定义为”PIPE00”pipenameforbulkinputpipeonourtestboard
”PIPE01”pipenameforbulkoutputpipeonourtestboard。
PIPE00和PIPE01 是参考src/usb/bulkusb，我实际在用时这两个效果一样，为了避免USB异常引起的死机，我文件打开采用非阻塞模式。
*/
HANDLEopen_file（char*filename）
{
intsuccess=1;
HANDLEh;
charcompleteDeviceName[256]="
"
;
//generatedfromtheGUIDregisteredbythedriveritself
if（!
GetUsbDeviceFileName（（LPGUID）&
GUID_CLASS_I82930_BULK,completeDeviceName））
{
//NOISY（（"
FailedtoGetUsbDeviceFileName/n"
GetLastError（）））;
return
INVALID_HANDLE_VALUE;
}
strcat（completeDeviceName,
"
//"
）;
filename）;
//printf（"
completeDeviceName=（%s）/n"
completeDeviceName）;
h=CreateFile（completeDeviceName,
GENERIC_WRITE|GENERIC_READ,
FILE_SHARE_WRITE|FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL|FILE_FLAG_OVERLAPPED,
NULL）;
if（h==INVALID_HANDLE_VALUE）{
Failedtoopen（%s）=%d"
completeDeviceName,GetLastError（）））;
success=0;
}else{
Openedsuccessfully./n"
））;
}
returnh;
}
GetUsbDeviceFileName
功能：
获取USB设备路径
参数：
pGUID
返回：
outNameBufUSB设备路径
BOOLGetUsbDeviceFileName（LPGUID
pGuid,char*outNameBuf）
HANDLEhDev=OpenUsbDevice（pGuid,outNameBuf）;
if（hDev!
=INVALID_HANDLE_VALUE）
CloseHandle（hDev）;
returnTRUE;
returnFALSE;
OpenUsbDevice
pGUID设备GUID
HANDLEOpenUsbDevice（LPGUID
ULONGNumberDevices;
HANDLEhOut=INVALID_HANDLE_VALUE;
HDEVINFO
hardwareDeviceInfo;
SP_INTERFACE_DEVICE_DATAdeviceInfoData;
ULONG
i;
BOOLEAN
done;
PUSB_DEVICE_DESCRIPTOR
usbDeviceInst;
*UsbDevices=&
usbDeviceInst;
*UsbDevices=NULL;
NumberDevices=0;
//
//Openahandletotheplugandplaydevnode.
//SetupDiGetClassDevs（）returnsadeviceinformationsetthatcontainsinfoonall
//installeddevicesofaspecifiedclass.
hardwareDeviceInfo=SetupDiGetClassDevs（
pGuid,
NULL,//Definenoenumerator（global）
NULL,//Defineno
（DIGCF_PRESENT|//OnlyDevicespresent
DIGCF_INTERFACEDEVICE））;
//Functionclassdevices.
//Takeawildguessatthenumberofdeviceswehave;
//Bepreparedtoreallocandretryiftherearemorethanweguessed
NumberDevices=4;
done=FALSE;
deviceInfoData.cbSize=sizeof（SP_INTERFACE_DEVICE_DATA）;
i=0;
while（!
done）
NumberDevices*=2;
if（*UsbDevices）
*UsbDevices=（PUSB_DEVICE_DESCRIPTOR）realloc（*UsbDevices,（NumberDevices*sizeof（USB_DEVICE_DESCRIPTOR）））;
}
else
*UsbDevices=（PUSB_DEVICE_DESCRIPTOR）calloc（NumberDevices,sizeof（USB_DEVICE_DESCRIPTOR））;
if（NULL==*UsbDevices）
//SetupDiDestroyDeviceInfoListdestroysadeviceinformationset
//andfreesallassociatedmemory.
SetupDiDestroyDeviceInfoList（hardwareDeviceInfo）;
returnINVALID_HANDLE_VALUE;
usbDeviceInst=*UsbDevices+i;
for（;
i<
NumberDevices;
i++）
//SetupDiEnumDeviceInterfaces（）returnsinformationaboutdeviceinterfaces
//exposedbyoneormoredevices.Eachcallreturnsinformationaboutoneinterface;
//theroutinecanbecalledrepeatedlytogetinformationaboutseveralinterfaces
//exposedbyoneormoredevices.
if（SetupDiEnumDeviceInterfaces（hardwareDeviceInfo,
0,//Wedon'
tcareaboutspecificPDOs
pGuid,
i,
&
deviceInfoData））{
hOut=OpenOneDevice（hardwareDeviceInfo,&
deviceInfoData,outNameBuf）;
if（hOut!
=INVALID_HANDLE_VALUE）
done=TRUE;
break;
if（ERROR_NO_MORE_ITEMS==GetLastError（））
NumberDevices=i;
//SetupDiDestroyDeviceInfoList（）destroysadeviceinformationset
free（*UsbDevices）;
returnhOut;
HANDLEOpenOneDevice（
IN
HardwareDeviceInfo,
PSP_INTERFACE_DEVICE_DATA
DeviceInfoData,
char*devName
）
PSP_INTERFACE_DEVICE_DETAIL_DATA
functionClassDeviceData=NULL;
predictedLength=0;
requiredLength=0;
HANDLE
hOut=INVALID_HANDLE_VALUE;
//allocateafunctionclassdevicedatastructuretoreceivethe
//goodsaboutthisparticulardevice.
SetupDiGetInterfaceDeviceDetail（
NULL,//probingsonooutputbufferyet
0,//probingsooutputbufferlengthofzero
&
requiredLength,
//notinterestedinthespecificdev-node
predictedLength=requiredLength;
//sizeof（SP_FNCLASS_DEVICE_DATA）+512;
functionClassDeviceData=（PSP_INTERFACE_DEVICE_DETAIL_DATA）malloc（predictedLength）;
functionClassDeviceData->
cbSize=sizeof（SP_INTERFACE_DEVICE_DETAIL_DATA）;
//RetrievetheinformationfromPlugandPlay.
if（!
functionClassDeviceData,
predictedLength,
NULL））{
free（functionClassDeviceData）;
strcpy（devName,functionClassDeviceData->
DevicePath）;
//printf（"
Attemptingtoopen%s/n"
devName）;
hOut=CreateFile（
DevicePath,
GENERIC_READ|GENERIC_WRITE,
FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL,//noSECURITY_ATTRIBUTESstructure
OPEN_EXISTING,//No
升级会员 