staticdv -> This is not a valid driver folder.

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  - 1
    - NDIS6 - Renew IP Address Hello, I'm writing a miniport driver for NDIS6 (Vista) which emulates 802.3 network device, but the actual physical device is different. Within a certain scenario I need the overlying protocol(s) to renegotiate the IP Address. I'm trying to follow the MSDN documentaion thus sending the status NDIS_STATUS_NETWORK_CHANGE with the specific NDIS_NETWORK_CHANGE_TYPE (NdisDefinitelyNetworkChange or NdisPossibleNetworkChange, i've tried them both). Unfortunatly, I couldn't obtain a new IP Address. when I run "ipconfig /renew" manualy I get a new IP easily. I've also seen in a sniffer that no DHCP Request is sent when my miniport indicates the status above (NDIS_STATUS_NETWORK_CHANGE ). In the past, for my previous miniport driver for NDIS5 (XP) the "trick" to renew the IP from the miniport was to indicate "link down" and "link up" in a row. in that case it worked fine. But now, running with NDIS6 I dont know the correct method for doing it. Can anybody help? Thanks Yogev Tag: staticdv -> This is not a valid driver folder. Tag: 102648
  - 2
    - File filter driver or MUP network redirector? Hi I have a design session coming up where the ultimate aim is to protect parts of the file system from prying eyes using either a MUP network redirector ( assuming file system mounted through remoted shares) or a file system filter driver using filter manager. I need to clear up some assumptions : Is mup a client or server side ( or both ? ) technology ? I understand I need to write a network redirector driver that owns a VNC path and will manage access to that path. If the unc path is on a file server - what needs to be done at the file server ? The file mini filter will need to intercept all calls to the filesystem. I have big fears about all the different MJ call types I will have to handle - fast IO, asynch io etc. What is the best plan to handle this - my opinion is to route them all through a common procedure and allow/disallow access as appropriate ut this can be a lot of different calls which expect different handling. This may lead to deadlocks and performance problems if not very carefully handled on a busy fileserver. The major benefit to me of the latter is that it can be installed everywhere - so a common build. Any commentsw or guidance as when to use one and when to use the other. The WDK docs on MUP haven't been terribly clear to me yet. regards Mike Tag: staticdv -> This is not a valid driver folder. Tag: 102645
  - 3
    - Bulkusb.sys performance hi, I have adapted bulkusb.sys (WDK 6000) for my usb device driver. With the driver communicating on interrupt endpoint i am not able to get performance more than 15Mbits/sec. However with the same device and application but driver from "thesycon" i.e. USBIO, performance is about 80Mbits/sec. Can some one tell why ? or if someone has the performance figures of bulkusb.sys or if some can guide how to improve the performance. Regards, Tag: staticdv -> This is not a valid driver folder. Tag: 102644
  - 4
    - Winusb.sys and winusb.lib source Hi , Is the source code of winusb.sys and winusb.lib available. It could be needed if some optimization is to be done. Regards, anshul Tag: staticdv -> This is not a valid driver folder. Tag: 102642
  - 5
    - NDIS setup and DTM seup for LAN is different Hi, 1. Are the NDIS setup and DTM setup for LAN is different ?Please let me know as I observed the difference between them. 2. In the DTM setup for LAN, local message device is not mentioned but in running the LAN test this is mentioned. This is confusing so please help to understand it. Rgds, Ram Tag: staticdv -> This is not a valid driver folder. Tag: 102639
  - 6
    - Problem reconfiguring PCI-e device in Vista Hi, I'm writing a driver for a proprietary PCI-e adapter. The board contains multiple FPGA-based PCI-e devices behind a PCI-e bridge. From time to time, we need to reconfigure the FPGA's while the system is alive. We do not however want the system to reboot (think of it as hot- swapping without physically replacing the device). The problem is that the FPGA's incorporate the PCI-e interface so that they cannot be reconfigured while they are active. In XP we finally managed to reconfigure the FPGA's by first calling CM_Query_And_Remove_SubTree() on the bridge (being the parent devices of our FPGA's). This causes the FPGA-devices to be switched to the D3- state, after which they can safely be reprogrammed. We then call CM_Reenumerate_DevNode() on the parent of the bridge device so that the new FPGA-devices are recognised again. In Vista however, the system seems to automatically re-enumerate the PCI bus immediately after the CM_Query_And_Remove_SubTree() has completed. This causes the FPGA's to be accessed while they are being configured resulting in a BSOD (Machine-check-excpetion). - Any idea how to disable (or delay) the re-enumeration of the PCI- bus? - Any link to more extensive documentation of the internals of the PnP system? I've found many ways to manage PnP devices, but little or no information about what is happening behind the scenes. - Any suggestions for alternative methods to achieve the reconfiguration? Note: redesigning our hardware is no option. Thanks in advance for your help, Koen Tag: staticdv -> This is not a valid driver folder. Tag: 102638
  - 7
    - Vista 32 bit display driver for small lcd's on USB Hi I need to make a solution which permits having secondary monitors on USB (small ones - vga/qvga) As far as I seen the display driver model has changed completly from the XP. Does anybody know a good startpoint for a vista display driver? The R200Sample from the WDK is a good starting point? A second problem is that Vista does not permits having two WDDM display drivers from different vendors. Does anybody knows solutions for this? XPDM is not really an option (only last one) since it switches off aero on primary monitor too which is something would need to avoid ... regards, -- -Barni Tag: staticdv -> This is not a valid driver folder. Tag: 102637
  - 8
    - INF file for SMBus driver Folks, I am writing a client driver for an SMBus device on a PCIe card. The SMBus device gets detected by the host controller. I can see the device listed by utilities like SpeedFan. The SMBus device uses a persistent slave address (actually an I2C device posing as an SMBus device). My question is how does one write an INF file for such an SMBus device - more specifically, how does one describe the device. I found this entry in the acpi.inf file - %SMBALI.DeviceDesc% = SMBALI_Inst,ACPI\SMBUS&VEN_10B9&DEV_7101 I guess this will work for devices that use dynamic address and get their address using ARP because the device id and vendor id will be available to the SMBus host controller from the device's UDID. But for SMBus devices that do not have things like UDID how does one specify the device description. Thanks, Ashwat Tag: staticdv -> This is not a valid driver folder. Tag: 102634
  - 9
    - Bluetooth profile driver in vista Hi all, I have some confussed questions. Yes, I read some msdn about bluetooth profile driver development in MSDN. But unfortunately, I haven't find source code in WDK sample. There are some questions : 1) If I write a headset or handsfree profile driver, I should communiate with SPP profile or RFCOMM stack. But I can not find the programming interface. 2) What interface should profile driver provide? For handsfree or headset profile, it should cowork with windows audio stack in bluetooth vista stack. But how? And the last question, do we need develope alll profile driver for user? or Microsoft will provide all profile driver in vista? Tag: staticdv -> This is not a valid driver folder. Tag: 102631
  - 10
    - Network bridge interface configuration I am trying to configure a network bridge programmatically. I can create and remove one fine using devcon, but how can I add my interface adapters to the existing bridge programmatically? Can I use devcon, or must I do some DLL calls through hnetcfg.dll? If I have to go the latter route, how do I get the function signatures (and any associated info I might need, if they take complex structures as arguments)? I know netsh does a lot, but there isn't much/any bridge configuration capability with it. Thanks in advance, -- Kevin Tag: staticdv -> This is not a valid driver folder. Tag: 102619
  - 11
    - DDK Halftone Functions Hi, I notice that print drivers, through the DDK, have access to some pretty neat halftone functions, with various halftone patters like these... HT_PATSIZE_2x2 HT_PATSIZE_2x2_M HT_PATSIZE_4x4 HT_PATSIZE_4x4_M HT_PATSIZE_6x6 HT_PATSIZE_6x6_M HT_PATSIZE_8x8 HT_PATSIZE_8x8_M HT_PATSIZE_10x10 HT_PATSIZE_10x10_M HT_PATSIZE_12x12 HT_PATSIZE_12x12_M HT_PATSIZE_14x14 HT_PATSIZE_14x14_M HT_PATSIZE_16x16 HT_PATSIZE_16x16_M HT_PATSIZE_SUPERCELL HT_PATSIZE_SUPERCELL_M HT_PATSIZE_AUTO Is it possible to access these same halftone patterns throguh the regular Win32 API or SDK? I am not writing a driver, but I am trying to add halftone capabilities to an old legacy C Win32 application, and I thought there might be a way to leverage these pre existing microsoft halftone functions in the app. Is it possible to get these same patterns through BitBlt, or StretchBlt, etc? Thanks in advance, Skeet Tag: staticdv -> This is not a valid driver folder. Tag: 102618
  - 12
    - question about 64-bit compliant DDK samples I am playing around with the samples in the DDK. In the HTML document, it says "this is 64-bit compliant". Does this mean that it won't run on my 32-bit Windows XP system? I tried to install 64-bit compliant Msplotter sample on my machine. I could not see it after a successful installation. On the other hand, a 32-bit complaint software can run on 64-bit system. Am I right? I am wondering which option I should change so that I will build a 32-bit compliant samples so that they can run on my XP. Thanks in advance! Tag: staticdv -> This is not a valid driver folder. Tag: 102615
  - 13
    - Obtainning USB_DEVICE_DESCRIPTOR How can I go about obtainning the USB_DEVICE_DESCRIPTOR for my custom device without enumerating through all hubs, ports and connected devices (ddk usbview example)? I also would like to avoid creating a custom IOCTL (i.e. IOCTL_MYDEVICE_GET_DEVICE_DESCRIPTOR). Tag: staticdv -> This is not a valid driver folder. Tag: 102614
  - 14
    - SET_LINE_CODING and usbser.sys I'm trying to write a USB to serial device (and who isn't<g>?) Right now I'm using usbser.sys. I've read all the warnings but a custom driver is currently out of the question. I don't understand why I'm not getting SET_LINE_CODING messages. When I go into Device Manager and change the baud rate, I would think that would be the time to call into usbser.sys and pass on a SET_LINE_CODING. My ultimate goal is to have the converter get the baud rate, etc on startup from Windows. Tag: staticdv -> This is not a valid driver folder. Tag: 102613
  - 15
    - Validating parameters for IoDeviceControl in KMDF -> KMDF verifier error When testing my driver to be crash safe for various user input, I came across an issue in my driver that I don't know how to handle. To eliminate my own driver, I tested the same thing with the original WDK (WDK 6000) sample osrusbfx2 driver. By modifying the testapp to send erronous input to the driver, I could get the error/break even there. The sample uses the parameters\wdf\DbgBreakOnError = 1. Now I wonder how it should be handled by the driver, as the KMDF says it's an error. How to reproduce: To have some common code to look at, I use the sample KMDF osrusbfx2. Modify the testapp to call the driver with IOCTL_OSRUSBFX2_GET_7_SEGMENT_DISPLAY and put erronous parameters in the call: if (!DeviceIoControl(deviceHandle, IOCTL_OSRUSBFX2_GET_7_SEGMENT_DISPLAY, &sevenSegment, // Ptr to InBuffer, NULL in example sizeof(UCHAR), // Length of InBuffer, 0 in example &sevenSegment, // Ptr to OutBuffer 0, // Length of OutBuffer &index, // BytesReturned 0)) { // Ptr to Overlapped structure I've only seen it when input buffer pointer and length is valid and the output buffer pointer is correct but oputput buffer length is zero. By turning on Parameters\Wdf\DbgBreakOnError, I get: >KMDF detected potentially invalid operation by canusb.sys. Turn on >framework verifier to break into the debugger. Turning on the verifier gives me >410: FxRequest::CompleteInternal - Caller of this WDFREQUEST 7A104170, Irp >0x862BB398 is passing an OuputBuffer address even though the >OutputBufferLength is zero <yes, there is a spell error in the log: OuputBuffer> So, here's my question: if this is a driver error, how can it be corrected? If this is just invalid parameters, why does the KMDF verifier break to the debugger? Regards, Carl-Magnus Segerlund Tag: staticdv -> This is not a valid driver folder. Tag: 102601
  - 16
    - Got few questions/doubts about MDL (after browsing archives/web) on this subject Hi, Working on a problem at hand with miniport network driver. I have few questions related to MDL & NET_BUFFER. My questions are: 1. What is the maximum size of virtual address-range that a single MDL can map? (I am under the impression that only one page of contiguous virtual address range can be mapped by a **Single** MDL. Let me know if this is wrong). 2. If a single buffer whose virtual address range is more than 8 K (size of receive buffer is more than 2 page assuming 4K page size), how many MDLs would be required in the *LEAST* to map the entire virtual address range? Answer to Q#1 will probably answer Q#2 as well. If not pls include answer for this as well. 3. Can ByteOffset be more than size of one physical page? I see that ByteCount value of Mdl returned by NdisAllocateMdl (length = 9k) set to 9K. 4. I have got a buffer whose size is more than 8K and I use NdisAllocateMdl to allocate Mdl to map this buffer passing start address of this buffer and complete length of this buffer. But I receive a single MDL in response to this operation? Does that not mean its mapping only part of buffer I passed? When I tried changing virtual address from (start address) to (start address + 5k), Mdl->StartVa & Mdl->ByteOffset changes to reflect next page which seems to answer my aobve question that it maps only part of the buffer. But still want to get it verified from experts on this list. How to get MDL chain mapping for the complete virtual address range and not just the first page of the receive buffer? Should I explicitly call NdisAllocateMdl() in loop for entire range starting from the start-address stepping through at size of 4k? 5. If I call NdisAllocateMdl on a buffer with address say X. I receive an Mdl and after executing some code, I realize that I need to indicate data to NDIS starting from X+5K. Can I pass the above allocated Mdl & NET_BUFFER to do this by manipulating DataOffset/ByteOffset? Thanks, -Praveen I see the following information in OSRonline doc on MDL: // Notice that while in the context of the subject // thread, the base virtual address of a buffer mapped // by an MDL may be referenced using the following: // // Mdl->StartVa | Mdl->ByteOffset typedef struct _MDL { struct _MDL *Next; CSHORT Size; CSHORT MdlFlags; struct _EPROCESS *Process; PVOID MappedSystemVa; PVOID StartVa; ULONG ByteCount; ULONG ByteOffset; } MDL, *PMDL; Also you know that StartVa is the page aligned virtual address of the start of the range and ByteOffset is the starting offset into the first page. TRIVIA POINT: MmBuildMdlForNonPagedPool sets the MappedSystemVa of the MDL to (Mdl->StartVa | Mdl->ByteOffset) and then sets the MDL_SOURCE_IS_ NONPAGED_POOL bit in the MdlFlags. Tag: staticdv -> This is not a valid driver folder. Tag: 102593
  - 17
    - Log Mejor Functions I want to log (in memory in circular list type space- so I get it on BSOD) all mejor function calls with some call parameters. I am thinking about setting all mejor function to a single function, log it there and forward to real function and log again on return. Would that be a good idea? Any idea or comment? -- Sincerely, Maruf Maniruzzaman, Software Engineer, KAZ Software Limited, Dhaka, Bangladesh. http://kaz.com.bd http://kuashaonline.com This posting is provided "AS IS", and confers no rights. Tag: staticdv -> This is not a valid driver folder. Tag: 102587
  - 18
    - How to delete the Tab "Layout" or "Paper/Quality" in Postscript Dr I'm writing a Customised Postscript Driver which is based on "PS5UI.DLL" and "PSCRIPT5.DLL". When Printing Perference window displays, I want to display the tab that I created by myself and I do not want to display the tab "Layout" or "Paper/Quality". The question is, how can I delete the tabs "Layout" or "Paper/Quality" from Printing Perference window? the following method I used is failed,because I can't get the handle of tab "Layout" or "Paper/Quality" . HRESULT __stdcall IPrintOemUI::DocumentPropertySheets( PPROPSHEETUI_INFO pPSUIInfo, LPARAM lParam) { if (pPSUIInfo) { HANDLE hPage[10]; LONG iPageCount; memset(hPage,0,sizeof(hPage)); iPageCount = (LONG)pPSUIInfo->pfnComPropSheet( pPSUIInfo->hComPropSheet, CPSFUNC_GET_HPSUIPAGES,(LPARAM)hPage,(LPARAM)10); if (iPageCount) { iPageCount = (LONG)pPSUIInfo->pfnComPropSheet( pPSUIInfo->hComPropSheet, CPSFUNC_DELETE_HCOMPROPSHEET,(LPARAM)hPage[1],(LPARAM)0); } } } Tag: staticdv -> This is not a valid driver folder. Tag: 102584
  - 19
    - PrinterDriver UI and MFC Hi NG, I'm writing a MsPlot based monotholitic printer driver. The question is wether it's possible, and if so what are the required steps, or not to use Mfc from withing Configuration Dll of a printer driver. I've already done some investigations, but weren't able to solve all Linker errors. - LNK2001 unresolved external symbol __afxForceEXLUDE - LNK2001 unresolved external symbol _afxPcNil I've included "afx.h". Which preprocessor defines must be set? Which header do I have to include? Which settings do I've to change in my sources file? Best regards, Lela Tag: staticdv -> This is not a valid driver folder. Tag: 102582
  - 20
    - suggestions needed for developing a printer driver I have no expereince on wrting a printer driver and need your advices or suggestions on developing a unidrive based image driver. I have downloaded WDK/WDF, built the samples by using "build -cZ", and tested the sample image driver in Print section. Now I need to modify the src code, integrate more stuff together, and do debugging soon. Is Visual Studio 6.0 a good IDE for this project? Do I need SDK for this? Is WDK the only one I need? Do you have any other advices or suggestions for me? Thanks in advance! Tag: staticdv -> This is not a valid driver folder. Tag: 102571
  - 21
    - Synchronising read and write ops All, I am writing a very basic on the fly encryption file system filter driver as a learning exercise. I was planning on: 1. Storing the real length of the file and other information in a header 2. Reading and writing the header as part of non-cached and paging IRP_MJ_READ and IRP_MJ_WRITE operations. 3. Returning the length from the header for IRP_MJ_QUERY_INFORMATION Irps. I was planning to use a driver managed queue of Irps so that I could ensure the I could update the header in response to a write before a another thread read the header; classic synchronization problem. However, I discovered that most (if not all) of the operations use Irp->UserBuffer, and in my driver dedicated thread I would have to change process context all the time to access the buffer, which strikes me as both dangerous and extremely slow. So, my question really is how would one generally synchronize this kind of thing? Could I use an ERESOURCE and have any read operations acquire shared and write operations acquire exclusively? Is it safe to enter a critical region for all read and write Irps? Many thanks in advance! Carl Tag: staticdv -> This is not a valid driver folder. Tag: 102570
  - 22
    - DiskId32 has trouble reading some SATA drives My DiskId32 tool, http://www.winsim.com/diskid32/diskid32.html , reads hard drive information directly from the hard drive in Windows Vista, XP, Win2K, Win9X, etc. DiskId32 works in three modes: direct using administrator rights, indirect using the scsi bypass and direct using user mode rights. The scsi bypass was dropped in Windows server 2003 and Vista. Please note that the source code for DiskId32 is there also. For some reason, the direct reading of the hard drive using user mode rights is failing for some SATA hard drives. However, the direct reading of the hard drive works fine in administrator mode. Specifically, what is failing is the reading of the serial number of the hard drive. The identify bank being returned by the hard drive is only 121 bytes long and the serial number pointer is at position 120 which has a zero in it. I would appreciate any insights or thoughts people might have for this issue. Thanks, Lynn Tag: staticdv -> This is not a valid driver folder. Tag: 102562
  - 23
    - KMDF filter driver not loading in safe boot mode We have several filter drivers using KMDF, and we noticed that under Windows XP SP2 they fail to load when you boot in safe mode. Seems that wdf01000.sys is not loaded in safe mode, causing the filter driver to not load. Issue is not present in Vista. Was able to fix this issue by adding the following registry key: HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\WdfLoadGroup Is this a known issue? Was not able to find any information on Microsoft, but seems that some other people had the same issue. Thanks for any help, Olivier Tag: staticdv -> This is not a valid driver folder. Tag: 102560
  - 24
    - Storport driver dropping HBA API events? Hi, I have taken the TempConsumer SDK example and converted it to consume the MSFC_AdapterEvent class. I have a Fibre Channel driver that fires multiple events (using ScsiPortFireWmiAdapterEvent) in rapid succession. However, the consumer only sees the first event. If the events are fired a few seconds later, again I only see the first event. Is there a limitation for firing events? If so, how is an event like this one supposed to work when there is unique data (the event type) each time the event is fired? Thanks, Scott Tag: staticdv -> This is not a valid driver folder. Tag: 102545
  - 25
    - Mysterious change in DbgPrint functionality I just solved a problem that was baffling me. I was trying to debug a driver on Vista Home Premium (32-bit) and, following advice I found online, I disabled User Account Control (UAC). All of a sudden, DebugView stopped showing messages from my driver. Turning UAC back on didn't fix it. I eventually solved my problem by creating a REG_DWORD value named DEFAULT, value -1, in HKLM\System\CurrentControlSet\Control\Session Manager\Debug Print Filter. My assumption is that disabling UAC deletes that key and re-enabling UAC doesn't put it back. -- Walter Oney, Consulting and Training http://www.oneysoft.com Tag: staticdv -> This is not a valid driver folder. Tag: 102541
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  - 1
    - CreateFile not working in vista-32 Application is calling CreateFile("\\\\.\\xxxx", GENERIC_READ | GENERIC_WRITE, etc.). Works great on Vista Ultimate (64-bit) and all pre-Vista 32-bit systems. Fails on Vista Home Premium (32-bit) with ERROR_ACCESS_DENIED. IRP, if ever generated, is not getting to my driver. App is running from command prompt running as administrator. Device object is created with call to IoCreateDeviceSecure specifying a valid setup GUID and SDDL_DEVOBJ_SYS_ALL_ADM_ALL. Objdir shows that there is no DACL on the device object, which presumably explains why CreateFile is failing. (There is a DACL on the symbolic link, and it allows R/W access by administrators). -- Walter Oney, Consulting and Training http://www.oneysoft.com Tag: staticdv -> This is not a valid driver folder. Tag: 102540
  - 2
    - Synchronizing MiniportResetEx with other Miniport entry points Hi, When MiniportResetEx is pending in the Miniport Driver, will NDIS call any other MiniportXXX entry points till Miniport says NdisMResetComplete (mainly oid, tx, adapter state transition and tx/ oid cancel routines)? If not then this will greatly reduce the synchronization effort in the Miniport. Thanks, Aniketa Tag: staticdv -> This is not a valid driver folder. Tag: 102538
  - 3
    - Error on Smart Card Service Hi, this may be offtopic but this problem involves, I think, low level Windows knowledge: I've developed a smart card application; it works ok, but when the session of Windows XP is locked and the application is running and tries to call a winscard API, it hangs in that call; never returns. I have found this error in the System log of the Event Viewer: Smart Card Reader 'OMNIKEY CardMan 3x21 1' rejected IOCTL GET_STATE: Access is denied. Source: SCardSvr Event_ID: 610 I would really appreciate any hint about this problem or where to find information / a forum to ask these questions. Thanks, -- Federico Tag: staticdv -> This is not a valid driver folder. Tag: 102537
  - 4
    - pfnCreateContextCb I am working on a r200 umd driver. User mode driver call the D3DDDI_DEVICECALLBACKS function to create a new graphics processing unit (GPU) thread, but the pfnCreateContextCb is returning NULL. So who is supposed to fill its value either defined by user mode driver, or direct3d runtime or by kernel mode driver itself regards prashant Tag: staticdv -> This is not a valid driver folder. Tag: 102535
  - 5
    - Disable driver signature enforcement in vista x64 business edition I am working on pci driver development for visa x64OS, i wanted to test my driver, whether the driver is working correctly or not. I installed my driver as i did in xp-32, 64 bit driver loaded correctly but, driver is not running, it is stopped(i verified with sc query name), i have choosen the option to "SERVICE_SYSTEM_START", though i tried to restart the driver using devcon, it says it is stopped & it is not running in vista x64. Since i am under development phase, driver is not signed, While installing the driver, it asked a pop up saying that driver is unsigned, i have choosen to install it. is the driver stopped instead of running, is it because of driver signing problem? I tried to disable driver signature enforcement using F8 option during system startup, but i dont see any difference, also treid with some bcdedit options, its same. currently i am looking KMCS_walkthrough.doc about, how to test sign the driver. Is this is the only way to test the driver, do i have to test sign the driver everytime, when the driver code is modified? Is this is the problem related to driver signing? while booting the system, i have choosen F8 to disable & tried some bcdedit options, still the result is same. Driver platform: WDF, driver model-NT model. Tag: staticdv -> This is not a valid driver folder. Tag: 102534
  - 6
    - Select_Config in WinCE5.0 Hi, I'm developing a USB driver for WinCE5.0 and planning to support a device with multiple configurations. I don't see any USBD interface for Select_Config. Then I was planning to issue a vendor transfer for a select_config. However, in one of discussion forums, I found out that we should not issue a vendor request for a Select-Config. Instead it should be a Control transfer. As am writing a function (client) driver, I don't have the pipe_handle to issue a control transfer!! Then I found one more post regarding the same in another discussion forum. It highlighted the steps as below - You should be able to select any device configuration using the following CE USB functions: ClearFeature: Sends a CLEAR_FEATURE request to a USB device. GetDescriptor: Sends a GET_DESCRIPTOR request to a USB device. GetInterface: Sends a request to a USB device for information about alternate device settings. GetStatus: Sends a GET_STATUS request to a USB device. SetDescriptor: Sends a SET_DESCRIPTOR request to a USB device. SetFeature: Sends a SET_FEATURE request to a USB device. SetInterface: Sends a SET_INTERFACE request to a USB device, to change the device's settings The first step says, I should send a CLEAR_FEATURE. My question is, issue CLEAR_FEATURE to clear what? Should I send USB_REQUEST_SET_CONFIGURATION as the "wFeature" argument in the call lpClearFeature? I tried this, but I got a USB_STALL_ERROR in return! Any help is appreciated Thanks, Sri Tag: staticdv -> This is not a valid driver folder. Tag: 102532
  - 7
    - Why 1c_setmulticast Test mandates 32 addresses?? Hi, My NIC supports setting 16 multicast addresses and I advertise same while initializing the Miniport Driver (NDIS60). But 1c_setmulticast NDIS Test mandates that the driver must support 32 multicast address. Why is that? Why 32? Thanks, Aniketa Tag: staticdv -> This is not a valid driver folder. Tag: 102531
  - 8
    - How to start working for developing a virtual printer driver? I am new to device driver development... I have studied some thing about windows DDK...i want to develop a virtual printer driver.... The first step is to convert it to EMF (Then finally to JPEG). I have been subscribed to OSRONLINE also.. They said me to refer to GENPRINT sample given in ..../Windows DDK../src/print/genprint sample.. I have build it using WinXP checked build environment... It now generates a GENPRINT.DLL... ("I haven't changed any of the source code") Now how to run the sample? They say me write a INF and GPD file... Whether this is needed or not? If it is needed, how to write a INF and GPD... Which material to refer for a beginner? Do I need to change the source code of genprint? Please help me.... Thank you for all your valuable suggestions... Tag: staticdv -> This is not a valid driver folder. Tag: 102530
  - 9
    - Minispy delete file Hello, I`m writing a user space application that interact with the minispy minifilter driver from the Microsoft examples. What I want to do is intercepting delete, create and write on a file. I have some troubles with the deleting: I look for an IRP_MJ_SET_INFORMATION with the FileDispositionInformation flag set. It all run fine if the file is deleted directly without using the recycle bin, but I cannot understand what is going on if the file is deleted using the recycle bin. Can someone help me? Thanks Tag: staticdv -> This is not a valid driver folder. Tag: 102527
  - 10
    - Windows Vista wireless interface Medai unauthenticated Hi, I am currently testing wifi compatibility on Windows Vista. To connect our Wifi adapter to the network we use our own application and supplicant. Our driver blocks windows from changineg the driver state and we have our own OIDs to associate and authenticate. We use IPHelper to catch IP configuration. This all works fine on XP but does not work on Vista. On Vista this works great for the radio, and my wifi interface become "Enabled" in Network Connection Panel, but DHCP never succeed to give me an IP configuration. On the command line, by typing "ipconfig", I can see my wifi interface hanging in media state "Media unauthenticated". Well sometimes if the ap is WEP only it works after a long delay but if the the security is WPA or WPA2 we never get an IP address. It also seems that if I set a static IP on the interface then IpHelper never reports the static IP. Any thoughts? Thanks Tag: staticdv -> This is not a valid driver folder. Tag: 102516
  - 11
    - WinUsb - multi device multi application Hi, I am going through documentation available on Winusb and it says that Winusb shoud be used when "the device is accessed by only a single application". My question is 1) if i use multiple instances of same application to communicate with different intances of same device(i.e. many boards of same kind connect to PC via hub) , can i use winusb. 2) if my application communicates with different intances of same device(i.e. many boards of same kind connect to PC via hub) . Communication with each instance happens in separate thread. Can i use WinUsb. 3) Can i use WinUSB in both case Thanks for an answer -Anshul Tag: staticdv -> This is not a valid driver folder. Tag: 102513
  - 12
    - WdfUsbTargetDeviceSelectConfig -> STATUS_INVALID_PARAMETER on Vista Hello, I am writing a KMDF driver for a USB device for Windows Vista, but I'm having problems selecting the only endpoint descriptor available (WdfUsbTargetDeviceSelectConfig always returns STATUS_INVALID_PARAMETER). The same driver works fine on Windows XP. This is the code I'm using (taken from a WDK sample): ----------------- ... status = WdfUsbTargetDeviceCreate(Device, WDF_NO_OBJECT_ATTRIBUTES, &pDeviceContext->UsbDevice); WDF_USB_DEVICE_SELECT_CONFIG_PARAMS_INIT_SINGLE_INTERFACE(&configParams); status = WdfUsbTargetDeviceSelectConfig(pDeviceContext->UsbDevice, WDF_NO_OBJECT_ATTRIBUTES, &configParams); ----------------- Since I read somewhere that Vista is much more strict regarding devices following USB standards, I decided to "dump" all the descriptors and see if everything was correct. Here is the result: *********** DEVICE_DESCRIPTOR *********** bLength: 18 OK bDescriptorType: 1 OK bcdUSB: 100 OK bDeviceClass: 0 OK bDeviceSubClass: 0 OK bDeviceProtocol: 0 OK bMaxPacketSize0: 8 OK idVendor: 4512 OK idProduct: 1000 OK bcdDevice: 100 OK iManufacturer: 1 OK (?) iSerialNumber: 0 OK bNumConfigurations: 1 OK *********** CONFIGURATION_DESCRIPTOR *********** bLength: 9 OK bDescriptorType: 2 OK wTotalLength: 19 OK bNumInterfaces: 1 OK bConfigurationValue: 1 OK iConfiguration: 4 OK (?) bmAttributes: A0 OK MaxPower: 10 OK *********** INTERFACE_DESCRIPTOR *********** bLength: 9 OK bDescriptorType: 4 OK bInterfaceNumber: 0 OK bAlternateSetting: 0 OK bNumEndpoints: 1 OK bInterfaceClass: 0 INVALID bInterfaceSubClass: 0 INVALID bInterfaceProtocol: 0 INVALID iInterface: 5 OK (?) *********** ENDPOINT_DESCRIPTOR *********** bLength: 7 OK bDescriptorType: 5 OK bEndpointAddress: 81 OK bmAttributes: 3 OK wMaxPacketSize: 15 OK (?) bInterval: 2 OK (?) - The values marked as "OK" follow the USB specification - The values marked as "OK (?)" should follow the USB specification, but I don't know if Vista is happy with them - The values marked as "INVALID" do NOT follow the USB specification Do you have any idea why selecting the descriptor doesn't work on Vista, while it works flawless on XP? Are those values really ok, or is there something wrong? Is my code fine, or is the device the problem? Thanks, - AS Tag: staticdv -> This is not a valid driver folder. Tag: 102504
  - 13
    - Printer driver GDI punting problem I am writing my first printer driver, based on the DDK sample. It is a user-mode driver for a monochrome printer. I want to hook the GDI DrvXxx graphics calls (DrvBitBlt, DrvStrokePath etc.), punt back to GDI to perform the drawing operation, and then access the resulting bitmap so that I can transmit the relevant portion of it to the printer. In DrvEnableSurface I create an engine-managed surface to use when punting back to GDI, and a device-managed surface so that I can hook the DrvXxx drawing functions :- HSURF DrvEnableSurface( DHPDEV dhpdev ) { PPDEV pPDev = (PPDEV) dhpdev; SIZEL SurfaceSize; LONG lWidth; SurfaceSize.cx = 808; SurfaceSize.cy = 592; lWidth = 101; // create bitmap... pPDev->pbBitmap = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, (SIZE_T) ( 808 * 592 ) ); // create engine-managed surface using our bitmap... if ( ! ( pPDev->hsurfEng = (HSURF) EngCreateBitmap( SurfaceSize, lWidth, BMF_1BPP, BMF_TOPDOWN, pPDev->pbBitmap ) ) ) { return NULL; } // create device-managed surface so that we can hook the DrvXxx drawing functions... if ( ! ( pPDev->hsurfDev = (HSURF) EngCreateDeviceSurface( (DHSURF) pPDev, SurfaceSize, BMF_1BPP ) ) ) { EngDeleteSurface( pPDev->hsurfEng ); return NULL; } // associate device-managed surface with GDI engine's hpdev... if ( ! EngAssociateSurface( pPDev->hsurfDev, (HDEV) pPDev->hpdev, HOOK_BITBLT | HOOK_STRETCHBLT | HOOK_COPYBITS | HOOK_STROKEPATH | HOOK_FILLPATH | HOOK_STROKEANDFILLPATH | HOOK_TEXTOUT ) ) { EngDeleteSurface( pPDev->hsurfEng ); EngDeleteSurface( pPDev->hsurfDev ); return NULL; } return pPDev->hsurfDev; } And then in the DrvXxx drawing routines I punt back using the engine-managed surface. For example, in DrvTextOut :- BOOL DrvTextOut( SURFOBJ *pso, STROBJ *pstro, FONTOBJ *pfo, CLIPOBJ *pco, RECTL *prclExtra, RECTL *prclOpaque, BRUSHOBJ *pboFore, BRUSHOBJ *pboOpaque, POINTL *pptlBrushOrg, MIX mix ) { BOOL bResult; SURFOBJ *pSurfObj; PPDEV pPDev = (PPDEV) pso->dhpdev; // obtain a SURFOBJ for our engine-managed surface... pSurfObj = EngLockSurface( pPDev->hsurfEng ); // punt back to GDI using our engine-managed surface... bResult = EngTextOut( pSurfObj, pstro, pfo, pco, prclExtra, prclOpaque, pboFore, pboOpaque, pptlBrushOrg, mix ); EngUnlockSurface( pSurfObj ); return bResult; } The problem that I have is that although EngTextOut returns TRUE, nothing is drawn onto the bitmap. This is true for all the DrvXxx drawing functions that I hook. Can anybody tell me why this should be so? Tag: staticdv -> This is not a valid driver folder. Tag: 102485
  - 14
    - How to Call IoRegisterFsRegistrationChangeEx? Hi, I want to call IoRegisterFsRegistrationChangeEx in my ifs driver. But I can't find where it is. Who can help me? Thank you! yang. -- Help Tag: staticdv -> This is not a valid driver folder. Tag: 102476
  - 15
    - Looking for USB device driver developer in Taiwan We are an IC design company focusing on USB peripheral development. We are looking for driver developer whom we can outsource our driver development to. If anyone feel interested, please contact with me. nk22nick@gmail.com Nick Liu Tag: staticdv -> This is not a valid driver folder. Tag: 102475
  - 16
    - KeGetCurrentProcessorNumber returning wrong value? A friend of mine is seeing this function return 256, on a system with 2 CPUs. Why might it be doing this? Thanks -- Andy Tag: staticdv -> This is not a valid driver folder. Tag: 102472
  - 17
    - trouble installing debug bootloader for debugging boot drivers Hi, This with WinDBG 6.8.0004.0 and WDK 6001.17051, target is Server 2003 sp2. I'm attempting to follow the instructions in the WinDBG help in "Mapping Driver Files" for replacing boot drivers with the image replacement feature (kdfiles). The directions are a little thin, but I'm trying to do the gist of what they're saying by copying WinDDK's debug\i386\ntkrpamp.exe over \windows\system32\ntkrnlmp.exe. I've also tried also copying \debug\i386\halmacpi.dll over \windows\system32\HAL.DLL. This results in a message: Windows could not start because of an error in the software. load needed DLLs for kernel. What am I doing wrong? Can I use the 6001 debug bootloader on Server 2003? (Additional wrinkles: Target is running in SMP PAE mode under Xen -- debugging non-boot drivers works fine.) Thanks -- Regards -- Andy Tag: staticdv -> This is not a valid driver folder. Tag: 102471
  - 18
    - OID_802_3_MULTICAST_LIST issued by multiple protocols Hi, What happens if two protocol drivers set their own multicast address list with OID_802_3_MULTICAST_LIST? Is it Miniport's responsibility to OR those two list, create a global list and send to the adapter or NDIS will take care of creating a global list of multicast address and send to Miniport via OID_802_3_MULTICAST_LIST? Also who will route the RX frames filtered via global multicast address list to the respective protocol drivers? Thanks, Aniketa Tag: staticdv -> This is not a valid driver folder. Tag: 102470
  - 19
    - Video data to the USB -- from the Noob again I'm not even sure how to ask this question, but I'll give it a shot. The standard disclaimer about my cluelessness applies. I'm supposed to find out how we present our post-DSP MPEG-4 streaming data to the USB. In other words, what is the data supposed to look like so the USB likes it? Am I supposed to be looking at MPEG-4 specs of some kind, and MPEG-2 transport stream specs? How do the drivers figure into all this? Is there a book or online tutorial of some kind that talks about this stuff in English instead of technical-ese? Thanks again, mic key@nospam.nospam "I used to be clueless, but I turned that situation around 360 degrees." -- Ratbert Tag: staticdv -> This is not a valid driver folder. Tag: 102467
  - 20
    - Video Driver Stack question from the Noob Again, please keep in mind my complete lack of training and experience with drivers, video, and the DDK, not to mention etc. We're building a handheld device, a PC running Vista. We're designing a camera to stream MPEG-4 video through a Blackfin DSP and over the USB. I'm looking at the Layered Driver Architecture diagram in the DDK documentation. It says "few (if any) driver stacks contain all these types of drivers", so naturally I'm wondering which ones ours will include. More specifically, which ones will we have to write? It sounds like most are supplied by Microsoft, with the exception of the user-mode client driver (which it says input devices don't typically have?), and the miniclass and miniport drivers, which are provided by vendors. Since we're just getting the camera modules from ST and doing the rest ourselves, will we be required to write the minis? Thanks, mic key@nospam.nospam "I used to be clueless, but I turned that situation around 360 degrees." -- Ratbert Tag: staticdv -> This is not a valid driver folder. Tag: 102464
  - 21
    - Binding modifying LWF between Microsoft Native Wi-Fi LWF and Miniport Hi - Can anyone please let me know how to bind a modifying LWF (like the one in the WDK sample) between the microsoft supplied Native Wi-Fi LWF (nwifi.sys) and the miniport driver? I have tried setting the FilterClass to custom, but it did not work. Appreciate any help! Thanks, Anand Tag: staticdv -> This is not a valid driver folder. Tag: 102461
  - 22
    - POISONED_TB: nt!MmPoisonedTb is non-zero Hello, Maybe related to my question about a device driver mapping memory it does not own, these messages appear in windbg, and no useful information on this was found on the internet: *** WARNING: nt!MmPoisonedTb is non-zero: *** The machine has been manipulated using the kernel debugger. *** MachineOwner should be contacted first Thanks in advance. Kevin Tag: staticdv -> This is not a valid driver folder. Tag: 102455
  - 23
    - Direct disk device access based upon size etc... Hi, I have two storage devices (say A & B) in my system. I want to divert the traffic to one of them based upon the sizes. Say all requests smaller than 4KB goes to device A while all other goes to device B. How can I achieve that? I was thinking of putting a filter driver somewhere in the stack? But I'm not sure which is the most appropriate place. I may have some other criteria also for diverting the traffic like "OS data vs User data" etc. Also can this be done without a filter driver or any other driver like for example writing some kind of windows service? If "yes" can you point me to some documentation about windows services. Thanks in anticipation. Tag: staticdv -> This is not a valid driver folder. Tag: 102453
  - 24
    - modifying outgoing/incoming packets in ndis 6.0 I am working on IM driver. I want to modify the src mac address of outgoing packet. I am doing this as 1. create a new mdl for ethernet header 2. create a one more mdl for the rest of data 3. modify the data in the 1st mdl 4. adjust the mdl linkage in netbuffer and send it out on packet completion , put the original mdls back in the packet But I found that while running ndistests , protocol driver does not receive the packet though packets look proper (thr ethereal) So what is the correct way to modify the packet (packet size remains same , only change packet data) in ndis 6.0 ? I checked MUX driver for vlan but vlan changes the packet size and mdls are inserted and deleted with advance and retreat. Is it necessary , in this case too ? Tag: staticdv -> This is not a valid driver folder. Tag: 102452
  - 25
    - Boot message device driver mapped memory it does not own Hello, I don't have the checked build installed, so is there a way to find out what driver did this after bootup? Will Driver Verifier help with this? How can I find which process have this physical memory mapped into their virtual address space? Thanks in advance, because people are blaming our driver for some random problem, which could be true, so I want to eliminate this situation first. ******************************************************************************* * * A driver is mapping physical memory 00097000->0009EFFF * that it does not own. This can cause internal CPU corruption. * A checked build will stop in the kernel debugger * so this problem can be fully debugged. * ******************************************************************************* Tag: staticdv -> This is not a valid driver folder. Tag: 102447

Hi,

IÂ´m trying to use staticdv for a audio codec and i get the follow error
(tested in checked and free):

---------------------------------------------------------------------
Microsoft (R) Windows (R) Static Driver Verifier Version 1.4.251.0
Copyright (C) Microsoft Corporation. All rights reserved.
---------------------------------------------------------------------
Warning: A driver (or a library) will be processed in the CHK build
environment.

Build 'ACM.AudioCodec' ...Done
This is not a valid driver folder.

which is the correct structure for this check ? the build and prefast works
fine.

Thanx,
Daniel

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