我对“海量存储设备"有疑问 [英] I have a problem with "Mass-Storage Device"
问题描述
大家好，
"Mass-Storage Device"存在问题(MSD).我开发了一些管道，用于与设备之间的传递请求或响应数据.我在内核模式下工作，并为所有USB设备传递到OS GUID.我有一个可以识别的类(CDeviceList :: Initialize() )我的PC和CDeviceList中的所有USB设备都插入到arrayList这样的每个设备路径中( USB #Vid_04e8& Pid_503b#0002F9A9828E0F06#{a5dcbf10-6530-11d2-901f-00c04fb951ed} )和功能
Hello all,
I have a problem with "Mass-Storage Device" (MSD). I develop some pipe for pass request or response data to or from device . I work in Kernel mode and pass to OS GUID for all USB device. I have a class (CDeviceList:: Initialize()) that can identify all USB devices in my PC and CDeviceList insert to arrayList each device path like that(USB#Vid_04e8&Pid_503b#0002F9A9828E0F06#{a5dcbf10-6530-11d2-901f-00c04fb951ed}) and function Initialize() return number USB devices in my PC.
CDeviceList :: Initialize()
{
HDEVINFO信息= SetupDiGetClassDevs(& m_guid，NULL，NULL，DIGCF_ALLCLASSES | DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
>
>
如果(信息== INVALID_HANDLE_VALUE)
if (info == INVALID_HANDLE_VALUE)
span style ="color:blue">返回 0;
return 0;
SP_INTERFACE_DEVICE_DATA ifdata;
ifdata .cbSize = sizeof (ifdata);
ifdata.cbSize = sizeof(ifdata);
DWORD devindex;
>
for (devindex = 0; SetupDiEnumDeviceInterfaces(info，NULL，& m_guid，devindex，& ifdata); ++ devindex)
for (devindex = 0; SetupDiEnumDeviceInterfaces(info, NULL, &m_guid, devindex, &ifdata); ++devindex)
{
DWORD需要；
SetupDiGetDeviceInterfaceDetail (info，& ifdata，NULL，0，& need，NULL);
PSP_INTERFACE_DEVICE_DETAIL_DATA详细信息=(PSP_INTERFACE_DEVICE_DETAIL_DATA)malloc(需要);
>
详细信息-> cbSize = sizeof (SP_INTERFACE_DEVICE_DETAIL_DATA);
detail->cbSize = sizeof(SP_INTERFACE_DEVICE_DETAIL_DATA);
SP_DEVINFO_DATA did = { sizeof (SP_DEVINFO_DATA)};
SP_DEVINFO_DATA did = {sizeof(SP_DEVINFO_DATA)};
SetupDiGetDeviceInterfaceDetail (信息，& ifdata，详细信息，必需的，NULL和& did)；
TCHAR fname [256];
span style ="color:blue">如果(！SetupDiGetDeviceRegistryProperty(info，& did，SPDRP_FRIENDLYNAME，NULL，(PBYTE)fname， sizeof (fname )，NULL)&&！SetupDiGetDeviceRegistryProperty(info，& did，SPDRP_DEVICEDESC，NULL，(PBYTE)fname， sizeof (fname)，NULL))
if (!SetupDiGetDeviceRegistryProperty(info, &did, SPDRP_FRIENDLYNAME, NULL, (PBYTE)fname, sizeof(fname), NULL) && !SetupDiGetDeviceRegistryProperty(info, &did, SPDRP_DEVICEDESC, NULL, (PBYTE)fname, sizeof(fname), NULL))
{
(fname，detail-> DevicePath，256);
>
CDeviceListEntry e(detail-> DevicePath，fname);
免费(((PVOID)详细信息)；
m_list .Add(e);
>
}
SetupDiDestroyDeviceInfoList (info);
返回 m_list.GetSize();
return m_list.GetSize();
}
然后我想从我的设备中获取信息，例如VendorID或ProductID. t因为CreateFile返回错误的指针和我的问题 为什么???
CHWDetectDlg :: FindMass_Storage_Device()
{
DEVICE_DESCRIPTOR m_desc;
DWORD测试；
>
HIDD_CONFIGURATION config;
//CDeviceList devList(GUID_DEVINTERFACE_USBSTOR);
//hidguid = GUID_DEVINTERFACE_USBSTOR;
//HidD_GetHidGuid(& hidguid);
CDeviceList devList(GUID_DEVINTERFACE_USB_DEVICE);
int ndevices = devList.Initialize();
int ndevices = devList.Initialize();
for ( int i = 0; i< ndevices; i ++)
for(int i=0; i<ndevices; i++)
{
>
CString m_tmp_linkName = devList.m_list [i] .m_linkname;//文件://％3f/usb％23vid_13fe& pid_1c27％23070075881b000020％23％7ba5dcbf10-6530-11d2-901f-00c04fb951ed％7d
>
>
CString m_frendlyName = devList.m_list [i] .m_friendlyname;//USB大容量存储设备
h = CreateFile(devList.m_list [i] .m_linkname，0，FILE_SHARE_READ | FILE_SHARE_WRITE，(LPSECURITY_ATTRIBUTES)NULL，OPEN_EXISTING，0，NULL);
>
>
span style ="color:blue">如果(h == INVALID_HANDLE_VALUE)
if(h == INVALID_HANDLE_VALUE)
span style ="color:blue">继续;
continue;
>
HIDD_ATTRIBUTES attr = { sizeof (HIDD_ATTRIBUTES)};
HIDD_ATTRIBUTES attr = {sizeof(HIDD_ATTRIBUTES)};
/span>
BOOLEAN好的= HidD_GetAttributes(h，& attr);
>
span style ="color:blue">如果(attr.VendorID == VENDOR_MOUSE_ID)
if(attr.VendorID == VENDOR_MOUSE_ID)
{
span style ="color:blue">如果(attr.ProductID == PRODUCT_ID)
if (attr.ProductID == PRODUCT_ID)
span style ="color:green">//PHIDP_DEVICE_DESC dev;
span style ="color:green">/* PHIDP_REPORT_DESCRIPTOR reportDesc;
}
>
}
1.如何从设备中获取信息?
2.如何在GET_MAX_LUN中使用?
谢谢，
最好的问候.
推荐答案
尊敬的 ，
Dear Elephant,
感谢您参加MSDN论坛，但是此论坛部分保留用于Visual C ++常规问题.对于设备信息获取问题，您可以将问题发布到 development.device.drivers
Thanks for participating on the MSDN Forum, but this forum section is reserved for Visual C++ General Questions. For device information acquisition question, you can post your question on the development.device.drivers newsgroup, there you find experts and your question should be answered in no time.
谢谢！
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