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usb_enumer.cpp
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usb_enumer.cpp
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#include "stdafx.h"
#include "usb_enumer.h"
#define MAX_DRIVER_KEY_NAME 256
#define MAX_DEVICE_PROP 200
#define NUM_STRING_DESC_TO_GET 32
#define ALLOC(dwBytes) GlobalAlloc(GPTR,(dwBytes))
#define FREE(hMem) GlobalFree((hMem))
CUsbEnumer::CUsbEnumer() : m_pXmlDoc(NULL)
{
}
void CUsbEnumer::_GetConnInfo(
ULONG ulConnectionIndex,
HANDLE hHubDevice,
PUSB_NODE_CONNECTION_INFORMATION_EX* ppConnInfoEx,
PUSB_NODE_CONNECTION_INFORMATION_EX_V2* ppConnInfoExV2
)
{
// 先取ConnInfoExV2
// 再取ConnInfoEx,若失败,再取ConnInfo
PUSB_NODE_CONNECTION_INFORMATION_EX pConnInfoEx = NULL;
PUSB_NODE_CONNECTION_INFORMATION_EX_V2 pConnInfoExV2 = NULL;
ULONG nBytesExV2 = 0;
BOOL bSuc = FALSE;
int nRetCode = 0;
// 申请内存
ULONG nBytesEx = sizeof(USB_NODE_CONNECTION_INFORMATION_EX) + (sizeof(USB_PIPE_INFO) * 30);
pConnInfoEx = (PUSB_NODE_CONNECTION_INFORMATION_EX)ALLOC(nBytesEx);
pConnInfoExV2 = (PUSB_NODE_CONNECTION_INFORMATION_EX_V2)ALLOC(sizeof(USB_NODE_CONNECTION_INFORMATION_EX_V2));
if (NULL == pConnInfoExV2 || NULL == pConnInfoEx)
{
goto Exit0;
}
// 初始化结构体
pConnInfoEx->ConnectionIndex = ulConnectionIndex;
pConnInfoExV2->ConnectionIndex = ulConnectionIndex;
pConnInfoExV2->Length = sizeof(USB_NODE_CONNECTION_INFORMATION_EX_V2);
pConnInfoExV2->SupportedUsbProtocols.Usb300 = 1;
// ConnInfoExV2
nBytesExV2 = 0;
bSuc = ::DeviceIoControl(
hHubDevice,
IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX_V2,
pConnInfoExV2,
sizeof(USB_NODE_CONNECTION_INFORMATION_EX_V2),
pConnInfoExV2,
sizeof(USB_NODE_CONNECTION_INFORMATION_EX_V2),
&nBytesExV2,
NULL);
if (!bSuc || nBytesExV2 < sizeof(USB_NODE_CONNECTION_INFORMATION_EX_V2))
{
FREE(pConnInfoExV2);
pConnInfoExV2 = NULL;
}
// ConnInfoEx
bSuc = ::DeviceIoControl(
hHubDevice,
IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX,
pConnInfoEx,
nBytesEx,
pConnInfoEx,
nBytesEx,
&nBytesEx,
NULL);
if (bSuc)
{
if (pConnInfoExV2)
{
if (pConnInfoEx->Speed == UsbHighSpeed && pConnInfoExV2->Flags.DeviceIsOperatingAtSuperSpeedOrHigher)
{
pConnInfoEx->Speed = UsbSuperSpeed;
}
}
}
else
{
// ConnInfo
ULONG nBytes = sizeof(USB_NODE_CONNECTION_INFORMATION) + sizeof(USB_PIPE_INFO) * 30;
PUSB_NODE_CONNECTION_INFORMATION pConnInfo = (PUSB_NODE_CONNECTION_INFORMATION)ALLOC(nBytes);
if (!pConnInfo)
{
goto Exit0;
}
pConnInfo->ConnectionIndex = ulConnectionIndex;
bSuc = ::DeviceIoControl(
hHubDevice,
IOCTL_USB_GET_NODE_CONNECTION_INFORMATION,
pConnInfo,
nBytes,
pConnInfo,
nBytes,
&nBytes,
NULL);
if (bSuc)
{
pConnInfoEx->ConnectionIndex = pConnInfo->ConnectionIndex;
pConnInfoEx->DeviceDescriptor = pConnInfo->DeviceDescriptor;
pConnInfoEx->CurrentConfigurationValue = pConnInfo->CurrentConfigurationValue;
pConnInfoEx->Speed = pConnInfo->LowSpeed ? UsbLowSpeed : UsbFullSpeed;
pConnInfoEx->DeviceIsHub = pConnInfo->DeviceIsHub;
pConnInfoEx->DeviceAddress = pConnInfo->DeviceAddress;
pConnInfoEx->NumberOfOpenPipes = pConnInfo->NumberOfOpenPipes;
pConnInfoEx->ConnectionStatus = pConnInfo->ConnectionStatus;
memcpy(&pConnInfoEx->PipeList[0], &pConnInfo->PipeList[0], sizeof(USB_PIPE_INFO)* 30);
}
else
{
FREE(pConnInfoEx); pConnInfoEx = NULL;
FREE(pConnInfoExV2); pConnInfoExV2 = NULL;
}
FREE(pConnInfo);
}
bSuc = TRUE;
Exit0:
if (FALSE == bSuc)
{
if (pConnInfoEx)
{
FREE(pConnInfoEx);
pConnInfoEx = NULL;
}
if (pConnInfoExV2)
{
FREE(pConnInfoExV2);
pConnInfoExV2 = NULL;
}
}
if (ppConnInfoEx)
{
*ppConnInfoEx = pConnInfoEx;
}
if (ppConnInfoExV2)
{
*ppConnInfoExV2 = pConnInfoExV2;
}
}
void QueryDeviceDetail()
{
}
VOID CUsbEnumer::_EnumHubPorts(HANDLE hHubDevice, ULONG NumPorts, TiXmlElement* pXmlFather)
{
PUSB_NODE_CONNECTION_INFORMATION_EX pConnectionInfoEx = NULL;
PUSB_NODE_CONNECTION_INFORMATION_EX_V2 pConnectionInfoExV2 = NULL;
PUSB_DESCRIPTOR_REQUEST pUsbDescRequest = NULL;
UsbDevicePnpStrings stDevPnpStrings;
for (ULONG index = 1; index <= NumPorts; index++)
{
pUsbDescRequest = NULL;
pConnectionInfoEx = NULL;
pConnectionInfoExV2 = NULL;
_GetConnInfo(index, hHubDevice, &pConnectionInfoEx, &pConnectionInfoExV2);
if (NULL == pConnectionInfoEx)
{
if (pConnectionInfoExV2)
{
FREE(pConnectionInfoExV2);
pConnectionInfoExV2 = NULL;
}
continue;
}
TiXmlElement* pXmlPort = new TiXmlElement("port");
pXmlFather->LinkEndChild(pXmlPort);
TiXmlElement* pXmlPortChild = new TiXmlElement("unknown");
pXmlPort->LinkEndChild(pXmlPortChild);
if (pConnectionInfoEx->ConnectionStatus != NoDeviceConnected)
{
CString sDrvKeyName = _GetDriverKeyName(hHubDevice, index);
if (!sDrvKeyName.IsEmpty() && sDrvKeyName.GetLength() < MAX_DRIVER_KEY_NAME)
{
BOOL b = _DriverNameToDeviceProperties(sDrvKeyName, stDevPnpStrings);
}
}
if (pConnectionInfoEx->DeviceIsHub) // 若该节点是一个hub口
{
pXmlPortChild->SetValue("ext_hub");
CString sExtHubName = _GetExternalHubName(hHubDevice, index);
if (!sExtHubName.IsEmpty() && sExtHubName.GetLength() < MAX_DRIVER_KEY_NAME)
{
//pXmlPortChild->SetAttribute("name", CW2A(sExtHubName));
_EnumHub(sExtHubName, pXmlPortChild);
}
}
else
{
int icon = 0;
pXmlPortChild->SetValue("device");
if (pConnectionInfoEx->ConnectionStatus == DeviceConnected)
{
pUsbDescRequest = _GetConfigDescriptor(hHubDevice, index, 0);
if (pUsbDescRequest)
{
_ParsepUsbDescriptorRequest(pUsbDescRequest, pXmlPortChild);
}
if (!stDevPnpStrings.sDeviceInstanceId.IsEmpty())
{
pXmlPortChild->SetAttribute("instance_id", CW2A(stDevPnpStrings.sDeviceInstanceId));
}
}
if (pConnectionInfoExV2 && pConnectionInfoEx->ConnectionStatus == NoDeviceConnected)
{
if (pConnectionInfoExV2->SupportedUsbProtocols.Usb300 == 1)
icon = NoSsDeviceIcon;
else
icon = NoDeviceIcon;
}
else if (pConnectionInfoEx->CurrentConfigurationValue)
{
pConnectionInfoEx->Speed == UsbSuperSpeed ? icon = GoodSsDeviceIcon : icon = GoodDeviceIcon;
}
else
{
pXmlPort->RemoveChild(pXmlPortChild);
icon = BadDeviceIcon;
}
}
if (pConnectionInfoEx)
{
FREE(pConnectionInfoEx);
pConnectionInfoEx =NULL;
}
if (pConnectionInfoExV2)
{
FREE(pConnectionInfoExV2);
pConnectionInfoExV2 = NULL;
}
if (pUsbDescRequest)
{
FREE(pUsbDescRequest);
pUsbDescRequest = NULL;
}
}
}
CString CUsbEnumer::_GetDriverKeyName(HANDLE hHub, ULONG ConnectionIndex)
{
CString sRetDrvKeyName;
PUSB_NODE_CONNECTION_DRIVERKEY_NAME pDriverKeyName = NULL;
// 读大小
USB_NODE_CONNECTION_DRIVERKEY_NAME stDriverKeyName = {0};
stDriverKeyName.ConnectionIndex = ConnectionIndex;
ULONG ulBytes = 0;
BOOL bSuc = ::DeviceIoControl(
hHub,
IOCTL_USB_GET_NODE_CONNECTION_DRIVERKEY_NAME,
&stDriverKeyName,
sizeof(stDriverKeyName),
&stDriverKeyName,
sizeof(stDriverKeyName),
&ulBytes,
NULL);
if (!bSuc)
{
goto Exit0;
}
ulBytes = stDriverKeyName.ActualLength;
if (ulBytes <= sizeof(stDriverKeyName))
{
goto Exit0;
}
// 申请内存
pDriverKeyName = (PUSB_NODE_CONNECTION_DRIVERKEY_NAME)ALLOC(ulBytes);
if (pDriverKeyName == NULL)
{
goto Exit0;
}
// 取值
pDriverKeyName->ConnectionIndex = ConnectionIndex;
bSuc = ::DeviceIoControl(hHub, IOCTL_USB_GET_NODE_CONNECTION_DRIVERKEY_NAME, pDriverKeyName, ulBytes, pDriverKeyName, ulBytes, &ulBytes, NULL);
if (!bSuc)
{
goto Exit0;
}
sRetDrvKeyName = (LPCTSTR)pDriverKeyName->DriverKeyName;
Exit0:
if (pDriverKeyName != NULL)
{
FREE(pDriverKeyName);
pDriverKeyName = NULL;
}
return sRetDrvKeyName;
}
BOOL CUsbEnumer::_DriverNameToDeviceProperties(const CString& sDrvKeyName, UsbDevicePnpStrings& stPnpStrings)
{
BOOL bSuc = FALSE;
ULONG ulSize = 0;
DWORD lastError = 0;
TCHAR* pDevInstanceId = NULL;
SP_DEVINFO_DATA deviceInfoData = {0};
HDEVINFO hDevInfo = _DriverNameToDeviceInst(sDrvKeyName, deviceInfoData);
if (INVALID_HANDLE_VALUE == hDevInfo)
{
goto Exit0;
}
ulSize = 0;
bSuc = ::SetupDiGetDeviceInstanceId(hDevInfo, &deviceInfoData, NULL, 0, &ulSize);
lastError = GetLastError();
if (bSuc != FALSE && lastError != ERROR_INSUFFICIENT_BUFFER)
{
bSuc = FALSE;
goto Exit0;
}
// An extra byte is required for the terminating character
pDevInstanceId = new TCHAR[++ulSize];
bSuc = ::SetupDiGetDeviceInstanceId(hDevInfo, &deviceInfoData, pDevInstanceId, MAX_DRIVER_KEY_NAME, &ulSize);
if (bSuc)
{
stPnpStrings.sDeviceInstanceId = pDevInstanceId;
stPnpStrings.sDeviceDesc = _GetDeviceProperty(hDevInfo, &deviceInfoData, SPDRP_DEVICEDESC);
stPnpStrings.sHardwareId = _GetDeviceProperty(hDevInfo, &deviceInfoData, SPDRP_HARDWAREID);
stPnpStrings.sService = _GetDeviceProperty(hDevInfo, &deviceInfoData, SPDRP_SERVICE);
stPnpStrings.sDeviceClass = _GetDeviceProperty(hDevInfo, &deviceInfoData, SPDRP_CLASS);
}
Exit0:
if (pDevInstanceId)
{
delete pDevInstanceId;
}
if (INVALID_HANDLE_VALUE != hDevInfo)
{
::SetupDiDestroyDeviceInfoList(hDevInfo);
}
return bSuc;
}
HDEVINFO CUsbEnumer::_DriverNameToDeviceInst(const CString& sDrvKeyName, SP_DEVINFO_DATA& stDevInfoData)
{
ULONG ulIndex = 0;
BOOL bSuc = FALSE;
// We cannot walk the device tree with CM_Get_Sibling etc. unless we assume
// the device tree will stabilize. Any devnode removal (even outside of USB)
// would force us to retry. Instead we use Setup API to snapshot all devices.
HDEVINFO hDevInfo = ::SetupDiGetClassDevs(NULL, NULL, NULL, DIGCF_ALLCLASSES | DIGCF_PRESENT);
if (INVALID_HANDLE_VALUE == hDevInfo)
{
goto Exit0;
}
ulIndex = 0;
memset(&stDevInfoData, 0, sizeof(SP_DEVINFO_DATA));
stDevInfoData.cbSize = sizeof(stDevInfoData);
while (bSuc == FALSE)
{
if (!::SetupDiEnumDeviceInfo(hDevInfo, ulIndex, &stDevInfoData))
{
break;
}
CString sDriverName = _GetDeviceProperty(hDevInfo, &stDevInfoData, SPDRP_DRIVER);
if (!sDriverName.IsEmpty() && sDrvKeyName.CompareNoCase(sDriverName) == 0)
{
bSuc = TRUE; // 成功
break;
}
ulIndex++;
if (ulIndex >= 100) // 这个地方,微软的usbview中没有,加这个,是为了防止死循环.
{
break;
}
}
Exit0:
if (FALSE == bSuc)
{
if (INVALID_HANDLE_VALUE != hDevInfo)
{
::SetupDiDestroyDeviceInfoList(hDevInfo);
hDevInfo = INVALID_HANDLE_VALUE;
}
memset(&stDevInfoData, 0, sizeof(SP_DEVINFO_DATA));
}
return hDevInfo;
}
CString CUsbEnumer::_GetDeviceProperty(HDEVINFO hDevInfo, PSP_DEVINFO_DATA pDevInfoData, DWORD dwProperty)
{
CString sPropertyValue;
LPTSTR lpBuf = NULL;
DWORD dwDataBytes = 0;
BOOL bSuc = ::SetupDiGetDeviceRegistryProperty(hDevInfo, pDevInfoData, dwProperty, NULL, NULL, 0, &dwDataBytes);
DWORD dwLastError = GetLastError();
if ((dwDataBytes == 0) || (bSuc != FALSE && dwLastError != ERROR_INSUFFICIENT_BUFFER))
{
goto Exit0;
}
lpBuf = (LPTSTR)ALLOC(dwDataBytes);
if (NULL == lpBuf)
{
goto Exit0;
}
memset(lpBuf, 0, dwDataBytes);
bSuc = ::SetupDiGetDeviceRegistryProperty(
hDevInfo,
pDevInfoData,
dwProperty,
NULL,
(PBYTE)lpBuf,
dwDataBytes,
&dwDataBytes);
if (bSuc)
{
sPropertyValue = lpBuf;
}
Exit0:
if (lpBuf)
{
FREE(lpBuf);
}
return sPropertyValue;
}
PUSB_DESCRIPTOR_REQUEST CUsbEnumer::_GetConfigDescriptor(HANDLE hHubDevice, ULONG ConnectionIndex, UCHAR DescriptorIndex)
{
BOOL success = 0;
ULONG nBytes = 0;
ULONG nBytesReturned = 0;
UCHAR configDescReqBuf[sizeof(USB_DESCRIPTOR_REQUEST)+
sizeof(USB_CONFIGURATION_DESCRIPTOR)];
PUSB_DESCRIPTOR_REQUEST configDescReq = NULL;
PUSB_CONFIGURATION_DESCRIPTOR configDesc = NULL;
// Request the Configuration Descriptor the first time using our
// local buffer, which is just big enough for the Cofiguration
// Descriptor itself.
//
nBytes = sizeof(configDescReqBuf);
configDescReq = (PUSB_DESCRIPTOR_REQUEST)configDescReqBuf;
configDesc = (PUSB_CONFIGURATION_DESCRIPTOR)(configDescReq + 1);
// Zero fill the entire request structure
//
memset(configDescReq, 0, nBytes);
// Indicate the port from which the descriptor will be requested
//
configDescReq->ConnectionIndex = ConnectionIndex;
//
// USBHUB uses URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE to process this
// IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION request.
//
// USBD will automatically initialize these fields:
// bmRequest = 0x80
// bRequest = 0x06
//
// We must inititialize these fields:
// wValue = Descriptor Type (high) and Descriptor Index (low byte)
// wIndex = Zero (or Language ID for String Descriptors)
// wLength = Length of descriptor buffer
//
configDescReq->SetupPacket.wValue = (USB_CONFIGURATION_DESCRIPTOR_TYPE << 8)
| DescriptorIndex;
configDescReq->SetupPacket.wLength = (USHORT)(nBytes - sizeof(USB_DESCRIPTOR_REQUEST));
// Now issue the get descriptor request.
//
success = DeviceIoControl(
hHubDevice,
IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION,
configDescReq,
nBytes,
configDescReq,
nBytes,
&nBytesReturned,
NULL);
if (!success)
{
return NULL;
}
if (nBytes != nBytesReturned)
{
return NULL;
}
if (configDesc->wTotalLength < sizeof(USB_CONFIGURATION_DESCRIPTOR))
{
return NULL;
}
// Now request the entire Configuration Descriptor using a dynamically
// allocated buffer which is sized big enough to hold the entire descriptor
//
nBytes = sizeof(USB_DESCRIPTOR_REQUEST)+configDesc->wTotalLength;
configDescReq = (PUSB_DESCRIPTOR_REQUEST)ALLOC(nBytes);
if (configDescReq == NULL)
{
return NULL;
}
configDesc = (PUSB_CONFIGURATION_DESCRIPTOR)(configDescReq + 1);
// Indicate the port from which the descriptor will be requested
//
configDescReq->ConnectionIndex = ConnectionIndex;
//
// USBHUB uses URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE to process this
// IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION request.
//
// USBD will automatically initialize these fields:
// bmRequest = 0x80
// bRequest = 0x06
//
// We must inititialize these fields:
// wValue = Descriptor Type (high) and Descriptor Index (low byte)
// wIndex = Zero (or Language ID for String Descriptors)
// wLength = Length of descriptor buffer
//
configDescReq->SetupPacket.wValue = (USB_CONFIGURATION_DESCRIPTOR_TYPE << 8)
| DescriptorIndex;
configDescReq->SetupPacket.wLength = (USHORT)(nBytes - sizeof(USB_DESCRIPTOR_REQUEST));
// Now issue the get descriptor request.
//
success = DeviceIoControl(hHubDevice,
IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION,
configDescReq,
nBytes,
configDescReq,
nBytes,
&nBytesReturned,
NULL);
if (!success)
{
FREE(configDescReq);
return NULL;
}
if (nBytes != nBytesReturned)
{
FREE(configDescReq);
return NULL;
}
if (configDesc->wTotalLength != (nBytes - sizeof(USB_DESCRIPTOR_REQUEST)))
{
FREE(configDescReq);
return NULL;
}
return configDescReq;
}
CString CUsbEnumer::_GetExternalHubName(HANDLE hHub, ULONG ulConnectionIndex)
{
CString sExtHubName;
BOOL bSuc = 0;
ULONG ulBytes = 0;
USB_NODE_CONNECTION_NAME stExtHubName;
PUSB_NODE_CONNECTION_NAME pExtHubName = NULL;
stExtHubName.ConnectionIndex = ulConnectionIndex;
bSuc = ::DeviceIoControl(hHub,
IOCTL_USB_GET_NODE_CONNECTION_NAME,
&stExtHubName,
sizeof(stExtHubName),
&stExtHubName,
sizeof(stExtHubName),
&ulBytes,
NULL);
if (!bSuc)
{
goto Exit0;
}
ulBytes = stExtHubName.ActualLength;
if (ulBytes <= sizeof(stExtHubName))
{
goto Exit0;
}
pExtHubName = (PUSB_NODE_CONNECTION_NAME)ALLOC(ulBytes);
if (pExtHubName == NULL)
{
goto Exit0;
}
pExtHubName->ConnectionIndex = ulConnectionIndex;
bSuc = ::DeviceIoControl(
hHub,
IOCTL_USB_GET_NODE_CONNECTION_NAME,
pExtHubName,
ulBytes,
pExtHubName,
ulBytes,
&ulBytes,
NULL);
if (!bSuc)
{
goto Exit0;
}
sExtHubName = (LPCTSTR)pExtHubName->NodeName;
Exit0:
if (pExtHubName != NULL)
{
FREE(pExtHubName);
pExtHubName = NULL;
}
return sExtHubName;
}
VOID CUsbEnumer::_EnumHostController(HANDLE hHCDev, HDEVINFO hDeviceInfo, PSP_DEVINFO_DATA deviceInfoData, TiXmlElement* pXmlHostController)
{
CString sRootHubName = _GetRootHubName(hHCDev);
if (!sRootHubName.IsEmpty() && sRootHubName.GetLength() < MAX_DRIVER_KEY_NAME)
{
TiXmlElement* pXmlRootHub = new TiXmlElement("root_hub");
pXmlHostController->LinkEndChild(pXmlRootHub);
_EnumHub(sRootHubName, pXmlRootHub);
}
}
VOID CUsbEnumer::_EnumHub(const CString& sHubName, TiXmlElement* pXmlFather)
{
HANDLE hHubDevice = INVALID_HANDLE_VALUE;
CString sFullHubName;
ULONG nBytes = 0;
BOOL bSuc = FALSE;
PUSB_NODE_INFORMATION pNodeInfo = (PUSB_NODE_INFORMATION)ALLOC(sizeof(USB_NODE_INFORMATION));
if (pNodeInfo == NULL)
{
goto Exit0;
}
sFullHubName.Format(_T("\\\\.\\%s"), sHubName);
hHubDevice = CreateFile(sFullHubName, GENERIC_WRITE, FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
if (hHubDevice == INVALID_HANDLE_VALUE)
{
goto Exit0;
}
bSuc = DeviceIoControl(
hHubDevice,
IOCTL_USB_GET_NODE_INFORMATION,
pNodeInfo,
sizeof(USB_NODE_INFORMATION),
pNodeInfo,
sizeof(USB_NODE_INFORMATION),
&nBytes,
NULL);
if (!bSuc)
{
goto Exit0;
}
_EnumHubPorts(hHubDevice, pNodeInfo->u.HubInformation.HubDescriptor.bNumberOfPorts, pXmlFather);
Exit0:
if (pNodeInfo)
{
FREE(pNodeInfo);
}
if (hHubDevice != INVALID_HANDLE_VALUE)
{
CloseHandle(hHubDevice);
}
}
/*
PStringDescriptorNode CUsbEnumer::_GetStringDescriptor(
HANDLE hHubDevice,
ULONG ConnectionIndex,
UCHAR DescriptorIndex,
USHORT LanguageID
)
{
BOOL success = 0;
ULONG nBytes = 0;
ULONG nBytesReturned = 0;
UCHAR stringDescReqBuf[sizeof(USB_DESCRIPTOR_REQUEST)+
MAXIMUM_USB_STRING_LENGTH];
PUSB_DESCRIPTOR_REQUEST stringDescReq = NULL;
PUSB_STRING_DESCRIPTOR stringDesc = NULL;
PStringDescriptorNode stringDescNode = NULL;
nBytes = sizeof(stringDescReqBuf);
stringDescReq = (PUSB_DESCRIPTOR_REQUEST)stringDescReqBuf;
stringDesc = (PUSB_STRING_DESCRIPTOR)(stringDescReq + 1);
// Zero fill the entire request structure
//
memset(stringDescReq, 0, nBytes);
// Indicate the port from which the descriptor will be requested
//
stringDescReq->ConnectionIndex = ConnectionIndex;
//
// USBHUB uses URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE to process this
// IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION request.
//
// USBD will automatically initialize these fields:
// bmRequest = 0x80
// bRequest = 0x06
//
// We must inititialize these fields:
// wValue = Descriptor Type (high) and Descriptor Index (low byte)
// wIndex = Zero (or Language ID for String Descriptors)
// wLength = Length of descriptor buffer
//
stringDescReq->SetupPacket.wValue = (USB_STRING_DESCRIPTOR_TYPE << 8)
| DescriptorIndex;
stringDescReq->SetupPacket.wIndex = LanguageID;
stringDescReq->SetupPacket.wLength = (USHORT)(nBytes - sizeof(USB_DESCRIPTOR_REQUEST));
// Now issue the get descriptor request.
//
success = DeviceIoControl(hHubDevice,
IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION,
stringDescReq,
nBytes,
stringDescReq,
nBytes,
&nBytesReturned,
NULL);
//
// Do some sanity checks on the return from the get descriptor request.
//
if (!success)
{
return NULL;
}
if (nBytesReturned < 2)
{
return NULL;
}
if (stringDesc->bDescriptorType != USB_STRING_DESCRIPTOR_TYPE)
{
return NULL;
}
if (stringDesc->bLength != nBytesReturned - sizeof(USB_DESCRIPTOR_REQUEST))
{
return NULL;
}
if (stringDesc->bLength % 2 != 0)
{
return NULL;
}
//
// Looks good, allocate some (zero filled) space for the string descriptor
// node and copy the string descriptor to it.
//
stringDescNode = (PStringDescriptorNode)ALLOC(sizeof(StringDescriptorNode)+
stringDesc->bLength);
if (stringDescNode == NULL)
{
return NULL;
}
stringDescNode->DescriptorIndex = DescriptorIndex;
stringDescNode->LanguageID = LanguageID;
memcpy(stringDescNode->StringDescriptor,
stringDesc,
stringDesc->bLength);
return stringDescNode;
}
*/
CString CUsbEnumer::_GetHCDDriverKeyName(HANDLE hHCDev)
{
CString sDriverKeyName;
BOOL bSuc = FALSE;
ULONG ulBytes = 0;
USB_HCD_DRIVERKEY_NAME stHCDDriverKeyName = { 0 };
PUSB_HCD_DRIVERKEY_NAME pHCDDriverKeyName = NULL;
bSuc = ::DeviceIoControl(
hHCDev,
IOCTL_GET_HCD_DRIVERKEY_NAME,
&stHCDDriverKeyName,
sizeof(stHCDDriverKeyName),
&stHCDDriverKeyName,
sizeof(stHCDDriverKeyName),
&ulBytes,
NULL);
if (!bSuc)
{
goto Exit0;
}
ulBytes = stHCDDriverKeyName.ActualLength;
if (ulBytes <= sizeof(stHCDDriverKeyName))
{
goto Exit0;
}
// Allocate size of name plus 1 for terminal zero
pHCDDriverKeyName = (PUSB_HCD_DRIVERKEY_NAME)ALLOC(ulBytes + 1);
if (pHCDDriverKeyName == NULL)
{
goto Exit0;
}
bSuc = ::DeviceIoControl(hHCDev,
IOCTL_GET_HCD_DRIVERKEY_NAME,
pHCDDriverKeyName,
ulBytes,
pHCDDriverKeyName,
ulBytes,
&ulBytes,
NULL);
if (!bSuc)
{
goto Exit0;
}
sDriverKeyName = (LPCTSTR)pHCDDriverKeyName->DriverKeyName;
Exit0:
if (pHCDDriverKeyName != NULL)
{
FREE(pHCDDriverKeyName);
pHCDDriverKeyName = NULL;
}
return sDriverKeyName;
}
CString CUsbEnumer::_GetRootHubName(HANDLE hHostController)
{
CString sRootHubName;
BOOL bSuc = FALSE;
ULONG nBytes = 0;
USB_ROOT_HUB_NAME stRootHubName;
PUSB_ROOT_HUB_NAME pRootHubName = NULL;
// 读大小
bSuc = ::DeviceIoControl(
hHostController,
IOCTL_USB_GET_ROOT_HUB_NAME,
0,
0,
&stRootHubName,
sizeof(stRootHubName),
&nBytes,
NULL);
if (!bSuc)
{
goto Exit0;
}
// 申请内存
nBytes = stRootHubName.ActualLength;
pRootHubName = (PUSB_ROOT_HUB_NAME)ALLOC(nBytes);
if (pRootHubName == NULL)
{
goto Exit0;
}
// 取值
bSuc = ::DeviceIoControl(
hHostController,
IOCTL_USB_GET_ROOT_HUB_NAME,
NULL,
0,
pRootHubName,
nBytes,
&nBytes,
NULL);
if (!bSuc)
{
goto Exit0;
}
sRootHubName = (LPCTSTR)pRootHubName->RootHubName;
Exit0:
if (pRootHubName != NULL)
{
FREE(pRootHubName);
}
return sRootHubName;
}
VOID CUsbEnumer::_EnumHostControllers(TiXmlElement* pXmlConputer)
{
HDEVINFO hDevInfo = ::SetupDiGetClassDevs((LPGUID)&GUID_CLASS_USB_HOST_CONTROLLER, NULL, NULL, (DIGCF_PRESENT | DIGCF_DEVICEINTERFACE));
if (INVALID_HANDLE_VALUE != hDevInfo)
{
SP_DEVICE_INTERFACE_DATA stInterfaceData = {0};
SP_DEVINFO_DATA deviceInfoData = {0};
deviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
for (DWORD index=0; ::SetupDiEnumDeviceInfo(hDevInfo, index, &deviceInfoData); index++)
{
stInterfaceData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
BOOL bSuc = ::SetupDiEnumDeviceInterfaces(hDevInfo, 0, (LPGUID)&GUID_CLASS_USB_HOST_CONTROLLER, index, &stInterfaceData);
if (!bSuc)
{
break;
}
CString sDevPath = _GetDevPath(hDevInfo, stInterfaceData);
if (sDevPath.IsEmpty())
{
break;
}
HANDLE hHCDev = ::CreateFile(sDevPath, GENERIC_WRITE, FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
if (hHCDev != INVALID_HANDLE_VALUE)
{
CString sDrvKeyName = _GetHCDDriverKeyName(hHCDev);
if (!sDrvKeyName.IsEmpty())
{
TiXmlElement* pXmlHostController = new TiXmlElement("controller");
pXmlConputer->LinkEndChild(pXmlHostController);
_EnumHostController(hHCDev, hDevInfo, &deviceInfoData, pXmlHostController);
}
::CloseHandle(hHCDev);
}
}
::SetupDiDestroyDeviceInfoList(hDevInfo);
}
}
BOOL CUsbEnumer::IsAdbDevice( const CString& sFatherHubName, int nPortNum )
{
BOOL bFindInterface0xff42 = FALSE;
CString sFullHubName;
sFullHubName.Format(_T("\\\\.\\%s"), sFatherHubName);
HANDLE hHubDevice = CreateFile(sFullHubName, GENERIC_WRITE, FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);