获取USB设备C++的父信息
Get parent information of a USB device C++
我正在开发一个 MFC 工具来检查连接的 USB 设备的一些驱动程序信息,例如位置信息、父级、硬件 ID 等。我已经获得了我想要的所有其他信息,但我一直无法获取设备家长信息。
我在我的代码中使用了Setupapi.dll来获取设备信息。
使用 SetupDiGetClassDevs 函数获取 USB 设备信息句柄。
使用 SetupDiEnumDeviceInfo 函数获取特定设备信息数据。
使用 SetupDiGetDeviceRegistryProperty 函数获取设备描述和硬件 ID。
// List all connected USB devices
hDevInfo = SetupDiGetClassDevs(pClassGuid, pszEnumerator,
NULL, pClassGuid != NULL ? DIGCF_PRESENT : DIGCF_ALLCLASSES |
DIGCF_PRESENT);
// Get device info data
SetupDiEnumDeviceInfo(hDevInfo, i, &DeviceInfoData);
// Get device instance id
CM_Get_Device_ID(DeviceInfoData.DevInst, szDeviceInstanceID, MAX_PATH,
0);
// Get device description
SetupDiGetDeviceRegistryProperty(hDevInfo, &DeviceInfoData,
SPDRP_DEVICEDESC,
&dwPropertyRegDataType, (BYTE*)szDesc, sizeof(szDesc), &dwSize);
#define DEFINE_DEVPROPKEY(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7,
b8, pid) EXTERN_C const DEVPROPKEY DECLSPEC_SELECTANY
name = { { l, w1, w2, { b1, b2, b3, b4, b5, b6, b7, b8 } }, pid
}
// DEVPROP_TYPE_STRING
DEFINE_DEVPROPKEY(DEVPKEY_Device_Manufacturer, 0xa45c254e, 0xdf1c,
0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0, 13);
// DEVPROP_TYPE_GUID
DEFINE_DEVPROPKEY(DEVPKEY_Device_ContainerId, 0x8c7ed206, 0x3f8a, 0x4827,
0xb3, 0xab, 0xae, 0x9e, 0x1f, 0xae, 0xfc, 0x6c, 2);
typedef BOOL(WINAPI *FN_SetupDiGetDevicePropertyW)(
__in HDEVINFO DeviceInfoSet,
__in PSP_DEVINFO_DATA DeviceInfoData,
__in const DEVPROPKEY *PropertyKey,
__out DEVPROPTYPE *PropertyType,
__out_opt PBYTE PropertyBuffer,
__in DWORD PropertyBufferSize,
__out_opt PDWORD RequiredSize,
__in DWORD Flags
);
FN_SetupDiGetDevicePropertyW fn_SetupDiGetDevicePropertyW =
(FN_SetupDiGetDevicePropertyW)
GetProcAddress(GetModuleHandle(TEXT("Setupapi.dll")),
"SetupDiGetDevicePropertyW");
if (fn_SetupDiGetDevicePropertyW(hDevInfo, &DeviceInfoData,
&DEVPKEY_Device_Manufacturer, &ulPropertyType, (BYTE*)szBuffer,
sizeof(szBuffer), &dwSize, 0))
{
_tprintf(TEXT(" Device Manufacturer: \"%ls\"\n"), szBuffer);
}
if (fn_SetupDiGetDevicePropertyW(hDevInfo, &DeviceInfoData,
&DEVPKEY_Device_ContainerId, &ulPropertyType, (BYTE*)szDesc,
sizeof(szDesc), &dwSize, 0))
{
StringFromGUID2((REFGUID)szDesc, szBuffer, ARRAY_SIZE(szBuffer));
_tprintf(TEXT(" ContainerId: \"%ls\"\n"), szBuffer);
}
获取USB设备的父信息对我很有用。请帮忙提供一些线索。
please look into image
CM_Locate_DevNode
打开给定设备 ID 的设备句柄;
CM_Get_Parent
找到父设备;
CM_Get_Device_ID_Size
和 CM_Get_Device_ID
获取设备句柄和 return 设备 ID。
样本:
#include <Windows.h>
#include <setupapi.h>
#include <cfgmgr32.h>
#include <tchar.h>
#include <stdio.h>
#define ARRAY_SIZE(arr) (sizeof(arr)/sizeof(arr[0]))
#pragma comment (lib, "setupapi.lib")
int main()
{
HDEVINFO hDevInfo;
GUID guid;
BYTE buffer[1024];
DWORD dwRequiredSize;
DEVINST devInstParent;
SP_DEVICE_INTERFACE_DATA devInterfaceData;
SP_DEVINFO_DATA devInfoData;
PSP_DEVICE_INTERFACE_DETAIL_DATA pDevDetail;
CONFIGRET status;
TCHAR szDeviceInstanceID[MAX_DEVICE_ID_LEN];
BOOL bSuccess;
guid = GUID_DEVINTERFACE_VOLUME;
hDevInfo = SetupDiGetClassDevs(&guid, NULL, NULL, DIGCF_DEVICEINTERFACE | DIGCF_PRESENT);
if (hDevInfo == INVALID_HANDLE_VALUE) {
return 1;
}
for (DWORD dwIndex = 0;; dwIndex++)
{
ZeroMemory(&devInterfaceData, sizeof(devInterfaceData));
devInterfaceData.cbSize = sizeof(devInterfaceData);
if (!SetupDiEnumDeviceInterfaces(hDevInfo, NULL, &guid, dwIndex, &devInterfaceData)) {
DWORD dwErrorCode = GetLastError();
if (dwErrorCode == ERROR_NO_MORE_ITEMS)
break;
else
return 1;
}
ZeroMemory(&devInfoData, sizeof(devInfoData));
devInfoData.cbSize = sizeof(devInfoData);
pDevDetail = (PSP_DEVICE_INTERFACE_DETAIL_DATA)buffer;
pDevDetail->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
// Get device interface detail data to get Device Instance from
// SP_DEVINFO_DATA and Device Path from SP_DEVICE_INTERFACE_DETAIL_DATA
bSuccess = SetupDiGetDeviceInterfaceDetail(hDevInfo, &devInterfaceData,
pDevDetail,// SP_DEVICE_INTERFACE_DETAIL_DATA
sizeof(buffer), &dwRequiredSize, &devInfoData); // SP_DEVINFO_DATA
status = CM_Get_Parent(&devInstParent, devInfoData.DevInst, 0);
if (status == CR_SUCCESS)
{
status = CM_Get_Device_ID(devInstParent, szDeviceInstanceID, ARRAY_SIZE(szDeviceInstanceID), 0);
if (status == CR_SUCCESS)
_tprintf(TEXT(" %s\n"), szDeviceInstanceID);
}
else
{
continue;
}
}
return 0;
}
调试结果:
我正在开发一个 MFC 工具来检查连接的 USB 设备的一些驱动程序信息,例如位置信息、父级、硬件 ID 等。我已经获得了我想要的所有其他信息,但我一直无法获取设备家长信息。
我在我的代码中使用了Setupapi.dll来获取设备信息。 使用 SetupDiGetClassDevs 函数获取 USB 设备信息句柄。 使用 SetupDiEnumDeviceInfo 函数获取特定设备信息数据。 使用 SetupDiGetDeviceRegistryProperty 函数获取设备描述和硬件 ID。
// List all connected USB devices
hDevInfo = SetupDiGetClassDevs(pClassGuid, pszEnumerator,
NULL, pClassGuid != NULL ? DIGCF_PRESENT : DIGCF_ALLCLASSES |
DIGCF_PRESENT);
// Get device info data
SetupDiEnumDeviceInfo(hDevInfo, i, &DeviceInfoData);
// Get device instance id
CM_Get_Device_ID(DeviceInfoData.DevInst, szDeviceInstanceID, MAX_PATH,
0);
// Get device description
SetupDiGetDeviceRegistryProperty(hDevInfo, &DeviceInfoData,
SPDRP_DEVICEDESC,
&dwPropertyRegDataType, (BYTE*)szDesc, sizeof(szDesc), &dwSize);
#define DEFINE_DEVPROPKEY(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7,
b8, pid) EXTERN_C const DEVPROPKEY DECLSPEC_SELECTANY
name = { { l, w1, w2, { b1, b2, b3, b4, b5, b6, b7, b8 } }, pid
}
// DEVPROP_TYPE_STRING
DEFINE_DEVPROPKEY(DEVPKEY_Device_Manufacturer, 0xa45c254e, 0xdf1c,
0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0, 13);
// DEVPROP_TYPE_GUID
DEFINE_DEVPROPKEY(DEVPKEY_Device_ContainerId, 0x8c7ed206, 0x3f8a, 0x4827,
0xb3, 0xab, 0xae, 0x9e, 0x1f, 0xae, 0xfc, 0x6c, 2);
typedef BOOL(WINAPI *FN_SetupDiGetDevicePropertyW)(
__in HDEVINFO DeviceInfoSet,
__in PSP_DEVINFO_DATA DeviceInfoData,
__in const DEVPROPKEY *PropertyKey,
__out DEVPROPTYPE *PropertyType,
__out_opt PBYTE PropertyBuffer,
__in DWORD PropertyBufferSize,
__out_opt PDWORD RequiredSize,
__in DWORD Flags
);
FN_SetupDiGetDevicePropertyW fn_SetupDiGetDevicePropertyW =
(FN_SetupDiGetDevicePropertyW)
GetProcAddress(GetModuleHandle(TEXT("Setupapi.dll")),
"SetupDiGetDevicePropertyW");
if (fn_SetupDiGetDevicePropertyW(hDevInfo, &DeviceInfoData,
&DEVPKEY_Device_Manufacturer, &ulPropertyType, (BYTE*)szBuffer,
sizeof(szBuffer), &dwSize, 0))
{
_tprintf(TEXT(" Device Manufacturer: \"%ls\"\n"), szBuffer);
}
if (fn_SetupDiGetDevicePropertyW(hDevInfo, &DeviceInfoData,
&DEVPKEY_Device_ContainerId, &ulPropertyType, (BYTE*)szDesc,
sizeof(szDesc), &dwSize, 0))
{
StringFromGUID2((REFGUID)szDesc, szBuffer, ARRAY_SIZE(szBuffer));
_tprintf(TEXT(" ContainerId: \"%ls\"\n"), szBuffer);
}
获取USB设备的父信息对我很有用。请帮忙提供一些线索。
please look into image
CM_Locate_DevNode
打开给定设备 ID 的设备句柄;
CM_Get_Parent
找到父设备;
CM_Get_Device_ID_Size
和 CM_Get_Device_ID
获取设备句柄和 return 设备 ID。
样本:
#include <Windows.h>
#include <setupapi.h>
#include <cfgmgr32.h>
#include <tchar.h>
#include <stdio.h>
#define ARRAY_SIZE(arr) (sizeof(arr)/sizeof(arr[0]))
#pragma comment (lib, "setupapi.lib")
int main()
{
HDEVINFO hDevInfo;
GUID guid;
BYTE buffer[1024];
DWORD dwRequiredSize;
DEVINST devInstParent;
SP_DEVICE_INTERFACE_DATA devInterfaceData;
SP_DEVINFO_DATA devInfoData;
PSP_DEVICE_INTERFACE_DETAIL_DATA pDevDetail;
CONFIGRET status;
TCHAR szDeviceInstanceID[MAX_DEVICE_ID_LEN];
BOOL bSuccess;
guid = GUID_DEVINTERFACE_VOLUME;
hDevInfo = SetupDiGetClassDevs(&guid, NULL, NULL, DIGCF_DEVICEINTERFACE | DIGCF_PRESENT);
if (hDevInfo == INVALID_HANDLE_VALUE) {
return 1;
}
for (DWORD dwIndex = 0;; dwIndex++)
{
ZeroMemory(&devInterfaceData, sizeof(devInterfaceData));
devInterfaceData.cbSize = sizeof(devInterfaceData);
if (!SetupDiEnumDeviceInterfaces(hDevInfo, NULL, &guid, dwIndex, &devInterfaceData)) {
DWORD dwErrorCode = GetLastError();
if (dwErrorCode == ERROR_NO_MORE_ITEMS)
break;
else
return 1;
}
ZeroMemory(&devInfoData, sizeof(devInfoData));
devInfoData.cbSize = sizeof(devInfoData);
pDevDetail = (PSP_DEVICE_INTERFACE_DETAIL_DATA)buffer;
pDevDetail->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
// Get device interface detail data to get Device Instance from
// SP_DEVINFO_DATA and Device Path from SP_DEVICE_INTERFACE_DETAIL_DATA
bSuccess = SetupDiGetDeviceInterfaceDetail(hDevInfo, &devInterfaceData,
pDevDetail,// SP_DEVICE_INTERFACE_DETAIL_DATA
sizeof(buffer), &dwRequiredSize, &devInfoData); // SP_DEVINFO_DATA
status = CM_Get_Parent(&devInstParent, devInfoData.DevInst, 0);
if (status == CR_SUCCESS)
{
status = CM_Get_Device_ID(devInstParent, szDeviceInstanceID, ARRAY_SIZE(szDeviceInstanceID), 0);
if (status == CR_SUCCESS)
_tprintf(TEXT(" %s\n"), szDeviceInstanceID);
}
else
{
continue;
}
}
return 0;
}
调试结果: