使用SetupAPI获取USB设备描述符
使用SetupAPI获取USB设备描述符
提问于 2017-09-08 10:15:30
我想知道是否有可能获得带有SetupAPI函数的USB设备描述符(比如SetupDiGetDeviceRegistryProperty)？谢谢!
编辑
到目前为止，我只能收到windows友好的名称：
SetupDiGetDeviceRegistryProperty(hDevInfo, &DeviceInfoData, SPDRP_DEVICEDESC,
&dwPropertyRegDataType, (BYTE*)szDesc, sizeof(szDesc), &dwSize)回答 1
Stack Overflow用户
发布于 2017-09-12 19:29:14
我们需要表示设备的https://learn.microsoft.com/en-us/windows-hardware/drivers/install/device-instance-ids的字符串。这样，我们首先通过CM_Locate_DevNode获得设备节点的设备实例句柄，然后使用DEVPKEY_NAME调用CM_Get_DevNode_Property。
如果设置了DEVPKEY_Device_FriendlyName设备属性，则检索的属性值与DEVPKEY_Device_FriendlyName设备属性的值相同。否则，DEVPKEY_NAME的值与设备属性的值相同。
static volatile UCHAR guz;
CONFIGRET PrintFriendlyNameByDeviceID(PWSTR DeviceID)
{
DEVINST dnDevInst;
CONFIGRET status = CM_Locate_DevNodeW(&dnDevInst, DeviceID, CM_LOCATE_DEVNODE_NORMAL);
if (status == CR_SUCCESS)
{
ULONG cb = 0, rcb = 16;
PVOID stack = alloca(guz);
DEVPROPTYPE PropertyType;
union {
PVOID pv;
PWSTR sz;
PBYTE pb;
};
do
{
if (cb < rcb)
{
rcb = cb = RtlPointerToOffset(pv = alloca(rcb - cb), stack);
}
status = CM_Get_DevNode_PropertyW(dnDevInst, &DEVPKEY_NAME, &PropertyType, pb, &rcb, 0);
if (status == CR_SUCCESS)
{
if (PropertyType == DEVPROP_TYPE_STRING)
{
DbgPrint("NAME = %S\n", sz);
}
else
{
status = CR_WRONG_TYPE;
}
}
} while (status == CR_BUFFER_SMALL);
}
return status;
}如果我们有标识设备接口实例的字符串，则可以通过使用CM_Get_Device_Interface_Property键调用DEVPKEY_Device_InstanceId来从其中获取设备实例标识符，然后调用PrintFriendlyNameByDeviceID。
CONFIGRET PrintFriendlyNameByInterface(PCWSTR pszDeviceInterface)
{
ULONG cb = 0, rcb = 64;
PVOID stack = alloca(guz);
DEVPROPTYPE PropertyType;
CONFIGRET status;
union {
PVOID pv;
PWSTR DeviceID;
PBYTE pb;
};
do
{
if (cb < rcb)
{
rcb = cb = RtlPointerToOffset(pv = alloca(rcb - cb), stack);
}
status = CM_Get_Device_Interface_PropertyW(pszDeviceInterface, &DEVPKEY_Device_InstanceId, &PropertyType, pb, &rcb, 0);
if (status == CR_SUCCESS)
{
if (PropertyType == DEVPROP_TYPE_STRING)
{
DbgPrint("DeviceID = %S\n", DeviceID);
status = PrintFriendlyNameByDeviceID(DeviceID);
}
else
{
status = CR_WRONG_TYPE;
}
break;
}
} while (status == CR_BUFFER_SMALL);
return status;
}首先，我们有两个选择:通过调用CM_Get_Device_ID_List和CM_GETIDLIST_FILTER_CLASS|CM_GETIDLIST_FILTER_PRESENT检索设备实例in的列表，并使用"{36fc9e60-c465-11cf-8056-444553540000}"作为过滤器--这是在devguid.h中定义的众所周知的GUID_DEVCLASS_USB的字符串表示：
void PrintFriendlyNames(PCWSTR pszFilter)
{
CONFIGRET status;
ULONG len = 0, cb = 0, rcb;
PVOID stack = alloca(guz);
PWSTR buf = 0;
do
{
if (status = CM_Get_Device_ID_List_SizeW(&len, pszFilter, CM_GETIDLIST_FILTER_CLASS|CM_GETIDLIST_FILTER_PRESENT))
{
break;
}
if (cb < (rcb = len * sizeof(WCHAR)))
{
len = (cb = RtlPointerToOffset(buf = (PWSTR)alloca(rcb - cb), stack)) / sizeof(WCHAR);
}
status = CM_Get_Device_ID_ListW(pszFilter, buf, len, CM_GETIDLIST_FILTER_CLASS|CM_GETIDLIST_FILTER_PRESENT);
if (status == CR_SUCCESS)
{
while (*buf)
{
DbgPrint("DeviceID = %S\n", buf);
PrintFriendlyNameByDeviceID(buf);
buf += 1 + wcslen(buf);
}
}
} while (status == CR_BUFFER_SMALL);
}
PrintFriendlyNames(L"{36fc9e60-c465-11cf-8056-444553540000}");或通过列表枚举设备接口，并为每个设备接口调用PrintFriendlyNameByInterface。
void PrintFriendlyNames(PGUID InterfaceClassGuid)
{
CONFIGRET status;
ULONG len = 0, cb = 0, rcb;
PVOID stack = alloca(guz);
PWSTR buf = 0;
do
{
if (status = CM_Get_Device_Interface_List_SizeW(&len, InterfaceClassGuid, 0, CM_GET_DEVICE_INTERFACE_LIST_PRESENT))
{
break;
}
if (cb < (rcb = len * sizeof(WCHAR)))
{
len = (cb = RtlPointerToOffset(buf = (PWSTR)alloca(rcb - cb), stack)) / sizeof(WCHAR);
}
status = CM_Get_Device_Interface_ListW(InterfaceClassGuid, 0, buf, len, CM_GET_DEVICE_INTERFACE_LIST_PRESENT);
if (status == CR_SUCCESS)
{
while (*buf)
{
DbgPrint("Interface = %S\n", buf);
PrintFriendlyNameByInterface(buf);
buf += 1 + wcslen(buf);
}
}
} while (status == CR_BUFFER_SMALL);
}您可以使用例如GUID_DEVINTERFACE_USB_DEVICE
PrintFriendlyNames(const_cast<PGUID>(&GUID_DEVINTERFACE_USB_DEVICE));方法的结果(其中的设备/interfaces)将是不同的。用GUID_DEVINTERFACE_USB_DEVICE说我的情结
Interface = \\?\USB#VID_046D&PID_C52E#5&18d671f8&0&4#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
DeviceID = USB\VID_046D&PID_C52E\5&18d671f8&0&4
NAME = USB Composite Device
Interface = \\?\USB#VID_051D&PID_0002#5B1120T12418__#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
DeviceID = USB\VID_051D&PID_0002\5B1120T12418__
NAME = American Power Conversion USB UPS
Interface = \\?\USB#VID_045E&PID_077B#5&18d671f8&0&3#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
DeviceID = USB\VID_045E&PID_077B\5&18d671f8&0&3
NAME = USB Input Device当通过GUID_DEVCLASS_USB字符串过滤器进行枚举时：
DeviceID = USB\VID_1F75&PID_0916\120709860570000024
NAME = USB Mass Storage Device
DeviceID = USB\ROOT_HUB30\4&33ed72c&0&0
NAME = USB Root Hub (xHCI)
DeviceID = USB\VID_0951&PID_168F\001A92053B6A0CA101340008
NAME = USB Mass Storage Device
DeviceID = PCI\VEN_8086&DEV_A2AF&SUBSYS_7A741462&REV_00\3&11583659&0&A0
NAME = Intel(R) USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)
DeviceID = USB\VID_046D&PID_C52E\5&18d671f8&0&4
NAME = USB Composite Device页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/46114110
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