using KeWaitForMultipleOjbects

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- Previous
  - 1
    - detecting USB device I have a need using C#.NET (Any .NET sample would help) to determine if a particular USB device is plugged in. The same way Windows XP/2000 detects the new device and displays the balloon indicating the new hardware has been found. Any samples or direction to the API would be greatly appreciated. Tag: using KeWaitForMultipleOjbects Tag: 75696
  - 2
    - Keeping a file exactly where it is... Dear all, I have a requirement that an open file should be non-movable, I plan to manipulate the user data cluster by cluster (like a secure overwrite or defrag product might). So, I have two questions for all you file system experts out there: 1. If a file is open, is the file system required to keep the user data where it is until the file is closed? I suspect that it is file system dependent and the file system is free to do whatever it likes, whenever it likes 2. If I lock the entire file, does that guarantee that the file will stay put until I unlock the file? I don't want to get into a situation where I am writing to clusters that I thought were allocated to a given file but finding that they have been moved by a defrag operation (or similar) and I end up trashing another file or some file system meta data. Many thanks in advance, Carly Tag: using KeWaitForMultipleOjbects Tag: 75694
  - 3
    - 2 dual-core processor system Hello everybody. Can I get your assistance with Windows 32-bit XP professional operating system? Can Windows 32-bit XP professional run 4 threads simultaneously on 2 dual-core processor system? Furthermore, can Windows 32-bit XP professional run 8 threads simultaneously (4 actual and 4 virtual using Hyper-Threading) on 2 dual-core processor system? Does Windows 32-bit XP professional supports 2 dual-core processor system? Regards, Sergei Tag: using KeWaitForMultipleOjbects Tag: 75687
  - 4
    - Syntax error in '.kdfiles When using Windbg, and issuing a .kdfiles command, I keep getting the following error: kd> .kdfiles ^ Syntax error in '.kdfiles' It doesn't seem to want to recognize the .kdfiles command. Anyone know what could be causing the problem. Tag: using KeWaitForMultipleOjbects Tag: 75686
  - 5
    - #pragma alloc_text Hi All, How to declare some methods of a CPP class to be paged segment? TIA Tag: using KeWaitForMultipleOjbects Tag: 75685
  - 6
    - Detecting deadlocks Hi, I just tried to run my driver on a multi-cpu platform - and unfortunately this results in a non-responding system (possibly due to a deadlock). I've reviewed my code several times, but cannot find a possible reason for this behaviour, so: - Is there a good way / a software that can help me on this? I've tried driver verifier, but it doesn't block the deadlock by bluescreen? - Is there any other possible reason for this behaviour than deadlocks? - Just to make sure: Is it possible to acquire more than one different (!) spinlocks? e.g. NdisAcquireSpinLock(&a); NdisAcquireSpinLock(&b); NdisReleaseSpinLock(&b); NdisReleaseSpinLock(&a); Best wishes and thanks for any help, Peter Tag: using KeWaitForMultipleOjbects Tag: 75684
  - 7
    - Signing driver on their own On OSR website I read "Microsoft has decided that only signed drivers will be loadable on 64-bit Windows Vista systems. .......developers can obtain a Publisher Identify Certificate (PIC) from Microsoft and use that to sign their code". 1) Is obtaining this PIC can be used to sign own driver even for Windows 2000 and Windows XP drivers? 2)Will this give same installation experience as Microsoft signed driver? Thanks, Raj Tag: using KeWaitForMultipleOjbects Tag: 75681
  - 8
    - Vista Audio Driver - WaveRT Dear All, I`am involed in Vista Audio drivers. The latest DDK(5270) does not contain any *new Audio Sample (WaveRT based). The Portclass header file gives little detail about MiniportWaveRT interfaces. It's missing one or two parameters which defined in WaveRT document. Now the Problem: I want to convert the working WaveCyclic (un signed driver) miniport adapter driver to WaveRT driver step by step. But my efforts to compile in Vista OS (5270 DDK) gives error. Can someone shed some **light in this regard. or i am in wrong track ?? if u need i will give further detail. Any suggestion WELCOME!!!! Tag: using KeWaitForMultipleOjbects Tag: 75679
  - 9
    - USB Flash memory Arrive/remove notification Hi everybody, I'm developing a application to run over Windows XP embedded and have some troubles with the usb flash memory handling. My application needs to do some job when a USB flash memory is Removed/Inserted in any available USB port. I am using the Windows Messages WM_DEVICECHANGE with the flags DBT_DEVICEARRIVAL and DBT_DEVICEREMOVECOMPLETE. It works very well after the the usb flash memory has been used in the computer where the application run. But, When the application is running and a flash memory is inserted by first time in the computer, Windows sends the WM_DEVICECHANGE-DBT_DEVICEARRIVAL followed by a WM_DEVICECHANGE -DBT_DEVICEREMOVECOMPLETE and other WM_DEVICECHANGE-DBT_DEVICEARRIVAL. In this case, the behavior of the application is apparently wrong because it process the Device Remove message and the flash memory is still inserted in the USB Port. Is there any diference between the WM_DEVICECHANGE-DBT_DEVICEARRIVAL message sent by Windows the first time that a flash memory is inserted in a computer? Does anyone know how to identify this first WM_DEVICECHANGE-DBT_DEVICEARRIVAL? I have another issue, sometimes take few seconds to detect the WM_DEVICECHANGE- DBT_DEVICEARRIVAL or WM_DEVICECHANGE-DBT_DEVICEREMOVECOMPLETE. is this a isolated issue or any of you have seen something like that? Thanks for any help Tag: using KeWaitForMultipleOjbects Tag: 75678
  - 10
    - Can user app determine if remote debugger is attached? In an user application, is there any means for it to determine if a remote debugger is attached and if so what means of communication (i.e. COM or 1394) it is using that will work on Windows 2000? The CheckRemoteDebuggerAttached () seems to be the function to call if KD is running on a remote system, but it only shows support in XP SP1 and beyond. What we need is a means to achieve the same test which will work for W2K as well. Any help will be greatly appreciated! Del Fredricks Tag: using KeWaitForMultipleOjbects Tag: 75666
  - 11
    - Install driver on only one device How install driver on device with given device instance id int there are two ddevices and they have same hardware id? UpdateDriverForPlugAndPlayDevices install on both devices - it is not good. SetupDiXXX - Causes driver unsigned message to show multiple times (on each function call). Tag: using KeWaitForMultipleOjbects Tag: 75664
  - 12
    - problems while using MmAllocateContiguousMemorySpecifyCache Hai; I am using MmAllocateContiguousMemorySpecifyCache() function to allocate the memory. then i map that meory to user space by using function ZwMapViewOfSection(). I build that driver, that driver is working is fine. I put my pci cards in any pci slot it is working. Today i put that slot in pcix slot in my pc. Then MmAllocateContiguousMemorySpecifyCache() functions succeeds, but ZwMapViewOfSection() fails.I dont know what is the behaviour happening. I show my function code below. MmAllocateContiguousMemorySpecifyCache (numDescBytes, phyAddrLowRange, phyAddrRange, phyAddrMultiple, (MEMORY_CACHING_TYPE)MmCached); ZwMapViewOfSection(physicalMemoryHandle, (HANDLE) -1, &(PVOID)virtualAddress, 0L, 2, &viewBase, &size, ViewShare, 0, PAGE_READWRITE | PAGE_NOCACHE ); I dont know why it is not working in pcix slot.Please tell me what are the possibilities. Tag: using KeWaitForMultipleOjbects Tag: 75656
  - 13
    - NdisMAllocateSharedMemory, Bus logical address and Physical addre Hi We're developing a cardbus (dma master) NIC. I'm allocating shared memory in the Ndis driver using NdisMAllocateSahredMemory(). This call, gives me the virtuall address and physicall adress of the buffer. Now, How do I translate the returned physical address to a Bus logical address, which I can pass to my device.? Or Can the physical address reurned by the NdisMAllocateSharedMemory() be directly given to the dma master? Can a dma master use the physical address and access the system memory even if it has to go through PCI bridges. Thanks inAdance. ~suu_n_soup Tag: using KeWaitForMultipleOjbects Tag: 75655
  - 14
    - set Irp->MdlAddress = NULL When we allocate an IRP and set the Irp->MdlAddress to a MDL should we set Irp->MdlAddress = NULL before completing the IRP? Tag: using KeWaitForMultipleOjbects Tag: 75654
  - 15
    - Child Device Driver Hi, I've understood that I need to write a child display driver to be able to access the I2C bus using VIDEO_PORT_I2C_INTERFACE. But I have no idea how to create Child Driver for Mini Port Driver and the inf file. It would be great if someone help me in this regard. Thanks VK Tag: using KeWaitForMultipleOjbects Tag: 75652
  - 16
    - Filter Driver Testing? Hello, I am involved in testing Windows Filter Driver testing? I would like to know How do I do it? If I get a following information it will be great. 1. How to do white box testing on Filter drivers ? Do we need to any specific tools or code walkthru or any other methods. 2. What is the general issues always comes up in filter drivers while doing and also customer places? Thanks Amazon Tag: using KeWaitForMultipleOjbects Tag: 75650
  - 17
    - How do i install/change a device driver by software? Hello. I am currently trying to create a setup, doing these things: 1. Copy some files 2. Copy a new driver for an USB to IrDA dongle to harddisk 3. Update the driver for the USB to IrDA dongle, using copied driver from point 2. 4. (?) Kill the standard Windows XP Driver to never see it again and force Windows to install the driver from point 3 _ALWAYS_. I have some Problems/Questions with this: 1. No problem here. Inno Setup 5.0.8 used. Setup is for Windows XP SP 2 only. 2. I have 2 files: .inf and .sys Where is the correct location in {win} for driver files? I am currently copying the driver to the new folder {win}\infrared, because the files are copied to the correct location, when the driver is installed. 3./4. Hm.. no realy idea here. I never needed to install a driver by a software before. I found nothing in the Inno Setup documentation, so i think i have to use external programs. I want to do: - Tell Windows to remove the current driver from Device USB\VID_[my VID]&PID_[my PID]* and install my driver instead, ignoring that the new driver is not signed. - Tell Windows to use this driver allways, when a device with USB\VID_[my VID]&PID_[my PID]* is deteced and never again install the standard windows driver for this device. I tested around with the Microsoft tool "devcon.exe" and tried this: >> devcon.exe remove *USB\VID_[my VID here]&PID_[my PID here]* >> rundll32.exe setupapi.dll,InstallHinfSection DefaultInstall 132 [my driver filename here].inf >> devcon.exe rescan Result: Windows XP seems to re-install the Windows XP standard driver for the device. But how can i force Windows XP to intall a different driver for the device? How can i force Windows XP to use this new driver always, when a new device with the same VID&PID is detected? If the device is deteced, i can do it via Windows: => device manager => open device, drivers tab => update driver => select new inf file to install => warning for windows logo but working But how can i do this via software setup? And how can i force windows to use this driver, when a 2nd device is detected? Note: There will be never any other IrDA device connected, so it should be no problem to "kill" the windows XP standard driver if required. Any help is greatly appreciated. Kind regards, Daniel Tag: using KeWaitForMultipleOjbects Tag: 75649
  - 18
    - enabling tcp segmentation offload leads to poorer perfomance I am adding TSO support to a NDIS driver for win 2003. After TSO is enabled, the driver works fine, only that the performance becomes worse. Netperf TCP thruput drops by +30%. Logging shows that NDIS does pass big packets to the driver and packet trace shows that the card does split the big packets into small pieces. Nothing abnormal (no excessive retransmission, csum error) is observed in the packet trace. But why enabling TSO can degrade performance so much? I am pretty new in driver development and I know it's hard to tell without actually looking at the source code. but I really want some suggestions, directions from those gurus out there. Are there anything I should pay attention to? what tools, perfomance counters I can use/watch to help trace down the root cause? Thanks a lot Tag: using KeWaitForMultipleOjbects Tag: 75646
  - 19
    - build error with KdPrintEx Hi, I am using KdPrintEx in my driver but i keeep getting the 'identifier not found' error. I have included ntddk.h where it is supposed to be defined. I am building teh driver using 'windows checked build environment for XP'. I have looked into teh sample DDK code 'cdrom' which uses KdPrintEx and I see no difference in the way its used in sample and my driver. The cdrom sample builds without errors. Please let me know what mistake I might be making. Regds. Nitin Tag: using KeWaitForMultipleOjbects Tag: 75639
  - 20
    - IoIsWdmVersionAvailable Hi, I would like to use IoIsWdmVersionAvailable(IN UCHAR MajorVersion, IN UCHAR Minor Version) call to check whether the driver is running in Vista. Is the MajorVersion and MinorVersion defined for Vista? Thanks KS Tag: using KeWaitForMultipleOjbects Tag: 75636
  - 21
    - multi-function USB drivers with IAD Hi.. I'm trying to get a multi-function USB device to talk with windows properly. One of the functions is RNDIS, which has 2 interfaces, along with a custom function with 1 interface. In my config, RNDIS is using interfaces 0 and 1, while the custom function uses interface 2. In the config descriptor, I use this IAD descriptor before the RNDIS interface (but not one before the custom interface): 08 0B 00 02 02 02 FF 09 The problem is that when I plug in the device, windows (XP SP2) doesn't detect it as a composite device and add the MI_xx field onto the id that it compares to in my .inf file. I set up a dummy config with 2 functions that had only 1 interface apiece and the composite driver loaded correctly, so my guess would be that the IAD is not being set up properly. Is IAD support in XP SP2? Are there debug logs I can look at to see what is going on? Do I have to set up my .inf file to load the composite driver somehow? thanks for your help, Ben Tag: using KeWaitForMultipleOjbects Tag: 75628
  - 22
    - How to get ACPI notifications I am writing an ACPI device driver. I have search/study for a long time to implement the WDM of getting the ACPI event which is trigged by the BIOS ASL code notify (, 80) and notify (, 81). Which approach I should try in order to get these ACPI notifications? Do you get any sample code, opinion or comment? Tag: using KeWaitForMultipleOjbects Tag: 75627
  - 23
    - What is the latest available DDK? Hi driver experts, What is the latest version of DDK? Is the DDK for future MS OS (Long horn?) available for download? Thanks. Tag: using KeWaitForMultipleOjbects Tag: 75624
  - 24
    - Driver installation signing issues This is a multi-part message in MIME format. ------=_NextPart_000_0007_01C62C07.E00931D0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Hello, I have a driver that I am attempting to create an installer for using DIFx. The driver has passed WHQL certification but I have since updated it. My inf file references a cat file named the same as my driver. This originally was the cat file supplied from WHQL that I just resigned using my Authenticode cert. I then tried to create a new cat file using makecat but I get the same results. When trying to install I get an error on the inf stating "Error code 0x57: The parameter is incorrect.) Searching MSDN and Google doesn't come up with anything useful. Anyone know what this is or what I might be doing wrong? Any help would be greatly appreciated. Thanks, -- Sean McGinnis ------=_NextPart_000_0007_01C62C07.E00931D0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2900.2802" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial>Hello,</FONT></DIV> <DIV><FONT face=3DArial></FONT> </DIV> <DIV><FONT face=3DArial>I have a driver that I am attempting to create = an=20 installer for using DIFx. The driver has passed WHQL certification but I = have=20 since updated it. My inf file references a cat file named the same as my = driver.=20 This originally was the cat file supplied from WHQL that I just resigned = using=20 my Authenticode cert. I then tried to create a new cat file using = makecat but I=20 get the same results. When trying to install I get an error on the inf = stating=20 "Error code 0x57: The parameter is incorrect.) Searching MSDN and Google = doesn't=20 come up with anything useful. </FONT></DIV> <DIV><FONT face=3DArial></FONT> </DIV> <DIV><FONT face=3DArial>Anyone know what this is or what I might be = doing wrong?=20 Any help would be greatly appreciated.</FONT></DIV> <DIV><FONT face=3DArial></FONT> </DIV> <DIV><FONT face=3DArial>Thanks,<BR>-- <BR>Sean = McGinnis</FONT></DIV></BODY></HTML> ------=_NextPart_000_0007_01C62C07.E00931D0-- Tag: using KeWaitForMultipleOjbects Tag: 75623
  - 25
    - Re-using a user mode DLL for implementing a HID joystick? Hello, I'm just playing around with an USB interface card ( http://www.velleman.be/ot/en/product/view/?id=351980 ). This interface card is controlled via calls to an (user mode) DLL (K8055D.DLL) for setting and getting the analogue and digital output/input. My idea is to use this card as a base for a custom build flight sim yoke. As far as I'm understanding the DDK docs, I will have to write an HID minidriver to get DirectInput to "see" the interface card as joystick device. Problem: The minidriver is a kernel mode driver. The provided DLL is user mode. So, I assume using the high-level (and comfortable) DLL calls out of the minidriver is not possible, isn't it? Is there a other solution than reverse-engineer and re-implement the low-level DLL to interface card USB communication to pretend the card to be a joystick for windows? Kind Regards, Horst. Tag: using KeWaitForMultipleOjbects Tag: 75611
- Next
  - 1
    - ACPI and Thermal zones Hi I try to get the data of the ACPI thermal zones. Currently I don't know how. As far as I believe I must access the acpi.sys driver "in a way" to get the data. Unfortunately I dont know how. When I searched the web for references I found a program named "mobilemeter". This programm accesses the ACPI in a way and displays the thermal zone. It looks like this programm accesses the ACPI driver since no driver is shipped with this program... Hope anybody has a idea or example. I use VC++ for development... Thnaks in advance P. Tag: using KeWaitForMultipleOjbects Tag: 75607
  - 2
    - netvmini sample bug? Hey, I just experienced a bugcheck in my NDIS driver in my MiniportInitialize() function. I had been inspired by the netvmini sample's use of the two macros MP_INC_REF() and MP_DEC_REF(). The latter calls NdisSetEvent() whenever the reference count has reached zero. However, this results in a problem in the MiniportInitialize() function. In the sample, one of the last things done in the function is to call NdisInitializeEvent(). But if initialization fails at an earlier point, NdisInitializeEvent() is never executed and when MP_DEC_REF() is called to clean-up memory a bugcheck occurs (as the event hasn't been initialized). What's up with that? Tag: using KeWaitForMultipleOjbects Tag: 75602
  - 3
    - query regarding printer driver hi i am a software engineer & i am working on a UNIDRV printer driver using Microsoft plug-ins IPRINTOEMUI & IPRINTOEMUNI . I have some queries: 1. how can i reduce the size of TIFF image? 2. how can i get the name of Document from which i give a print command. ex: suppose i give a print command from Microsoft Word document name tmp.doc so i want to get the name (tmp.doc & Microsoft word) using functions & structures given with above mentioned plug-ins? 3. how i can implement TIFFSetField(tiff *, TIFFTAG_COMPRESSION,7). when i am trying this i am not able to build the TIFF file.? 4. how i can implement TIFFSetField(tiff *, TIFFTAG_COLORMAP,???).. what is the value of ?? in TIFFSetField function/ 5.how can i get the typeface of all the FONTS used in a document from which i give print command. ex: suppose i give a print command from a document named tmp.doc & i am using Times New Roman, Arial, Gothica fonts in that document so i want to know the name of these fonts using functions & structures given with above mentioned plug-ins? regards Himanshu himanshu.agar...@netcreativemind.com Tag: using KeWaitForMultipleOjbects Tag: 75601
  - 4
    - PnPAddDevice Return Value Hello Everyone, I am trying to return a error value from PnPAddDevice routine of my PCI Device driver for the system to not load the driver for that particular device. I am trying with STATUS_NOT_SUPPORTED. I see that the AddDevice keeps getting called. The background for this trial is as follows: My driver is a PnP Driver and there is a legacy driver available for the same PCI device with different functionality. The system has 10 similar PCI devices and I want to load my driver only on two of them. I am using the PCI three-tuples BUS-DEVICE-FUNCTION for choosing my devices. But, for automatic installation we have to use the PCI VendorID and Device ID which is same for all the 10 PCI devices. If I try automatic installation, the system tries to load my driver for all the 10 PCI devices. So, I check for specific BUS-DEVICE-FUNCTION in my AddDevice and return STATUS_NOT_SUPPORTED. I expect the system to ignore my driver and allow the legacy driver to use the device. But, it does not seem to happen and my AddDevice keeps getting called. Is there any specific STATUS_* value I have to return from AddDevice to achieve what I want? Please let me know the value or point me to the place where I can get it from. Thanks in advance for the big help from all of you Best Regards, Raj Tag: using KeWaitForMultipleOjbects Tag: 75600
  - 5
    - Question about IoAllocateIrp and IoInitializeIrp Hi all, the DDk document say that "Do not use IoInitializeIrp to initialize the IRP before its first use". If I misuse IoInitializeIrp next to IoAllocateIrp will cause any problem ? Is it possible to cause system crash ? Tag: using KeWaitForMultipleOjbects Tag: 75594
  - 6
    - Pre-loading USB Device Drivers I have a client who has created a USB device. The chipset vendor of the USB chipset provides a set of driver files. The drivers install correctly and everything is working so far. The customer would like me to have the primary software installation program pre-load the USB drivers so that if the user plugs in the device, Windows will automatically install the drivers without prompting the user for the CDROM, etc. The installation files that I have for the USB chipset is a series of INF files, dlls, and device drivers. Can anyone give me an idea of how I can pre-load these drivers on the user system to meet the customer's goal? Tag: using KeWaitForMultipleOjbects Tag: 75586
  - 7
    - CSQ and IoMarkIrpPending Hi, I had an impression that I don't need to call IoMarkIrpPending before IoCsqInsertIrp, as the latter internally marks the inserted IRP pending anyway. Is this correct? Thanks -- Tag: using KeWaitForMultipleOjbects Tag: 75584
  - 8
    - determine x64 Hi, I need to determine which version of my driver to load depending of if it is a 32-bit or 64 bit OS. What's a reliable way to determine if I am running on some x64 version of windows. I could always check the OS version with GetVersionEx but that doesn't seem reliable. Thanks Hua-Ying Tag: using KeWaitForMultipleOjbects Tag: 75579
  - 9
    - SetupDiCallClassInstaller getting error 0xE000023B on DIF_REMOVE My code uninstalls an NDIS driver with SetupDiCallClassInstaller(DIF_REMOVE,..), much as in the DDK example. On Windows 2003 Server, I get an error 0xE000023B, and can't figure out what this means. The nearest error I could find was STATUS_CONNECTION_ACTIVE (0xC000023B), but that doesn't seem to make sense-- I tried disabling my driver and still get the same error. The same code works fine on Windows 2000 and XP. Anyone know what this error means or what might be causing it? Tag: using KeWaitForMultipleOjbects Tag: 75577
  - 10
    - Device Co Installer and Microsft In Box Drivers I have developed a Device coinstaller that utilizes in box MS drivers based off the DDK toaster sample. Since I cannot redistribute in box drivers how to I have my co installer point to the in box driver without the Files needed box showing up? I noticed if I copy the driver to my distribution folder and tell the installer the location I do not recieve the Files needed box anymore. But leaving the driver in the system32 drivers directory and pointing the driverpath to that directory I get the box Any suggestions? Tag: using KeWaitForMultipleOjbects Tag: 75576
  - 11
    - Windows VISTA and SCSI drivers Does anyone possess or know where to find Adaptec SCSI drivers for Vista? -- Dennis @ H-P Tag: using KeWaitForMultipleOjbects Tag: 75575
  - 12
    - Sending Irp from SCSI miniport driver to bus driver I have a bus driver similar to the toaster bus driver from the DDK. I create a PDO (by using an application to send IOCTL_BUSENUM_PLUGIN_HARDWARE), and then I load my SCSI miniport driver onto that PDO. My bus driver exports an interface that the SCSI miniport driver uses. In the SCSI miniport code, I want to send IRP_MN_QUERY_INTERFACE to the child PDO that corresponds to the PDO on which the miniport driver is installed. In the miniport code, I have been sending the IRP by using the code below, where targetObject is the DEVICE_OBJECT field of the DRIVER_OBJECT parameter passed to the miniport's DriverEntry function. I believe that targetObject would then correspond to the FDO (not the child PDO that I want), but, nevertheless, this was working with no problems at all. However, I recently switched to another test PC, and now I get Bug Check 0x35 (NO_MORE_IRP_STACK_LOCATIONS) on the call to IoCallDriver. 1) Any idea why I get this Bug Check? 2) Is there a way for the miniport driver to get the PDO pointer that I need? KeInitializeEvent(&event, NotificationEvent, FALSE); irp = IoBuildSynchronousFsdRequest(IRP_MJ_PNP, targetObject, NULL, 0, NULL, &event, &ioStatusBlock); if(NULL == irp) { status = STATUS_INSUFFICIENT_RESOURCES; goto End; } irpStack = IoGetNextIrpStackLocation(irp); irpStack->MinorFunction = IRP_MN_QUERY_INTERFACE; irpStack->Parameters.QueryInterface.InterfaceType = (LPGUID)&ChannelBusProtocolGuid; irpStack->Parameters.QueryInterface.Size = sizeof(CHANNEL_BUS); irpStack->Parameters.QueryInterface.Version = 1; irpStack->Parameters.QueryInterface.Interface = (PINTERFACE)pChannelBus; irpStack->Parameters.QueryInterface.InterfaceSpecificData = NULL; irp->IoStatus.Status = STATUS_NOT_SUPPORTED; status = IoCallDriver(targetObject, irp); if(STATUS_PENDING == status) { KeWaitForSingleObject(&event, Executive, KernelMode, FALSE, NULL); status = ioStatusBlock.Status; } Tag: using KeWaitForMultipleOjbects Tag: 75574
  - 13
    - Howto extract info from an HTASK Hi, I am conscient that it might not be the place to ask that question here. I am trying to identify which task is presently active for the user. I am trying to filter WM_ACTIVATEAPP: But the param is an htask How do I get information such as which application name is? Or perhaps convert htask in ProcessID so I can extract the module name. Thanks Denis Tag: using KeWaitForMultipleOjbects Tag: 75570
  - 14
    - training with focus on device driver installation Is anyone offering training with focus on Windows device driver installation Thanks Tag: using KeWaitForMultipleOjbects Tag: 75569
  - 15
    - Non-paged pool leak in HID Class driver Hi, I used pooltag and found that the non-paged pool bytes used in HID Class driver is increasing about 200 KB per hour and the number of allocations minus the frees is also increasing (1 per second). The problem occurs in Windows 2000 but does not occur in XP. We have a program and a driver that interacts with the Hid Class driver. What in our program/driver can cause a leak in Windows 2000 and not in XP? Thanks, Daniel Tag: using KeWaitForMultipleOjbects Tag: 75567
  - 16
    - why do the encrypted files become plaintext when i reboot computer I develop the encyrpting/decrypting file system based on sfilter.c (IFS kit) . In fat32 file /NTFS file format , all are rigth. But in NTFS compressed file format , when i reboot computer , the file is in plaintext. I dispose the IRP_READ & IRP_WRITE, only disposed ' if((Irp->Flags &(IRP_NOCACHE|IRP_PAGING_IO|IRP_SYNCHRONOUS_PAGING_IO)))'. in IRP_WRITE dispatch function , encrypt file , in IRP_READ dispath function , decrypt file . Why? Tag: using KeWaitForMultipleOjbects Tag: 75565
  - 17
    - SP_DEVICE_INTERFACE_DETAIL_DATA Are the following facts trivial? Maybe not trivial enough. In the C and C++ languages, if the name of an array is used in an expression then it usually converts to a pointer type, but not always. Also array types in function parameters usually convert. However, if an array is being defined and storage is being reserved for the elements, then the name of the array is the name of the array itself, and does not convert to a pointer. Let's hope those facts are understood by most device driver writers, so that they don't cause many blue screens. Let's hope. Let's hope those facts are understood by big software vendors who have been known to write device drivers. Oops. http://msdn.microsoft.com/library/default.asp?url=/library/en-us/devio/base/sp_device_interface_detail_data_str.asp says: > DevicePath > Pointer to a NULL-terminated string that specifies the device path. Tag: using KeWaitForMultipleOjbects Tag: 75563
  - 18
    - Libc.lib is missing in WDK. Hi all, I am new to WDK development and hope that I can get from helps from the experts. My device driver built fine on DDK but I cannot get build success on WDK. The error messages: BUILDMSG: error BLD1004 : MSVCRT lib listed explicitly - use USE_MSVCRT=1 (c:\s b2\smbslave\exe\server) BUILDMSG: error BLD1006 : LIBC lib listed explicitly (c:\smb2\smbslave\exe\server) NMAKE : U1073: don't know how to make 'C:\WinDDK\5270\lib\wxp\i386\libc.lib' BUILD: nmake.exe failed - rc = 2 Does anyone know how I can resolve the above error message? Thanks. HS Phuah Tag: using KeWaitForMultipleOjbects Tag: 75560
  - 19
    - "Driver" or "Interface Object" - yes or no? I am having the following debate: I am trying to convince a vendor that the proper way to provide an interface to their embedded system (that hooks up to a PC using TCPIP) is to provide a software component on the PC (like a driver). For some reason, they are of the oppinion that just providing the syntax for the messages that go back and forth should be enough (i.e. the actual data that corresponeds to a particular message in an agreed format). I believe that it is better software engineering to provide an encapsulation and buffer layer in shape of a software component (such as a DLL etc.). Am I right? Wrong? How do I convince them? Any litterature to refer to? Thanks Tag: using KeWaitForMultipleOjbects Tag: 75552
  - 20
    - BroadcastSystemMessage and system-level device drivers according to the sdk "The BroadcastSystemMessage function sends a message to the specified recipients. The recipients can be applications, installable drivers, network drivers, system-level device drivers, or any combination of these system components" Note: system-level device drivers Is this documentation correct? If so, how does the WDM-type system-level device drivers get this message, possibbly via IoRegisterPlugPlayNotification? which parameters to pass to this call? Or maybe another registration function? And also, if so what parameters to pass in BroadcastSystemMessage( DWORD dwFlags, LPDWORD lpdwRecipients, UINT uiMessage, WPARAM wParam, LPARAM lParam ) ??? such that it can be seen by a wdm driver thanks tom Tag: using KeWaitForMultipleOjbects Tag: 75548
  - 21
    - PS/2 Mouse Packets and USB Mouse Reports under Windows Vista Hello Everybody, Back in 2004, Microsoft said that Vista was going to support the new WM_MOUSEHWHEEL message for horizontal scrolling (tilt wheel), which implies that tilt wheel data will be part of the standard data packet sent by a mouse to the OS. Does anyone know if any information has been published about the standard PS/2 packet structure for a mouse with a tilt wheel? Will there be any other information contained in the new packet format, such as the 4th and 5th buttons? If there are more buttons, what functionality is expected from them? How should a tilt-wheel PS/2 mouse report itself to the system to inform that it supports the new packet structure? Has any information been published about HID usage pages and usages to be used to transfer tilt wheel values to the OS over a USB connection? Any leads will be greatly appreciated. Thank you! Tag: using KeWaitForMultipleOjbects Tag: 75542
  - 22
    - UniDriver plugin -- "custom papersize" does not appear in my DEVMODE UniDriver plugin -- "custom papersize" does not appear in my DEVMODE Why is it that when I enter a "custom papersize", in an application like MS Word, that I don't see the same values (conversions accounted for) in my public DEVMODE (dmPaperSize, dmPaperWidth, dmPaperLength) in the driver, especially when printing? What do I need to do? Any ideas? Rudy Tag: using KeWaitForMultipleOjbects Tag: 75539
  - 23
    - pci expansion support I have finally found some time to rewrite a filter driver for a pci expansion system. Given the product I have a requirment to increase the resource windows of buses that are upstream of my product, because the system may be hot plugged, some BIOSes don't support us, and some of the devices downstream (third party) may require more then the default 64MB/64MB/4K. My driver acts as an upper filter to PCI.SYS. I would like to modify the PCI config space of the upstream buses before PCI.SYS reads them. The information I am looking for is at what point in the process does PCI.sys read the config space before resource arbitration to decide what resources to allocate? I will figure it out through expirimentation, but if someone out there has some street knowledge, or can point me to some relevant documentaion in this area that could save me some time I would appreciate it. The driver I am replacing makes modifications in the IRP_MN_FILTER_RESOURCE_REQUIREMENTS pnp IRP, this is a direction I could go as I have a mostly working example, it just seems like modifying the config space and letting PCI.sys do its job is an cleaner route to take. My worry is that I have somewhat of a chicken and egg dilema as I need pci.sys to make modifications to the config space, but I don't want to make the modifications too late. I want to work within the accepted practices of the OS as I want the driver to support Vista and 64 bit versions as well without too many modifications. Thanks, Brian Tag: using KeWaitForMultipleOjbects Tag: 75538
  - 24
    - !obtrace Hi All, How to set the "Object Reference Tracing" in the gflags to enable the !obtrace to work for _DEVICE_OBJECT objects? TIA Andrew Tag: using KeWaitForMultipleOjbects Tag: 75535
  - 25
    - IoCallDriver() returns STATUS_INVALID_DEVICE_REQUEST 0xc0000010 Hi All, I have a problem formatting and sending an Irp with Urb. I have an usb upper function filter driver and inside my custom IOCTL handler I call UsbBuildSelectConfigurationRequest to format an Urb and then I call SendAwaitUrb to sumbit the Urb. However, IoCallDriver inside SendAwaitUrb is returning STATUS_INVALID_DEVICE_REQUEST 0xc0000010. I must be wrong somewere in the code below, because as we all know the SendWaitUrb and the other code from W.Oney's book is a great source to learn and practicise. I have checked the chain Fido->Fdo->Pdo, it's ok, I believe UsbBuildSelectConfigurationRequest with NULL formats a proper setup packet... but still I am stuck and could not go ahead. Please take a look at the code below and let me know what do you think. Best regards, Dim switch (irpStack->MajorFunction) { case IRP_MJ_CREATE: DebugPrint(("Create \n")); break; case IRP_MJ_CLOSE: DebugPrint(("Close \n")); break; case IRP_MJ_CLEANUP: DebugPrint(("Cleanup \n")); break; case IRP_MJ_DEVICE_CONTROL: ; switch (irpStack->Parameters.DeviceIoControl.IoControlCode) { //Here comes our predefined custom code case IOCTL_MY_CUSTOM: // Create the URB urb = (PURB)ExAllocatePool(NonPagedPool, sizeof(struct _URB_SELECT_CONFIGURATION)); UsbBuildSelectConfigurationRequest(urb, sizeof(struct _URB_SELECT_CONFIGURATION), NULL); status = SendAwaitUrb(DeviceObject, urb); if (!NT_SUCCESS(status)) KdPrint((DRIVERNAME " - sending urb failed with status %X\n", status)); break; default: status = STATUS_INVALID_PARAMETER; break; } default: break; } return CompleteRequest(Irp, status, 0); } NTSTATUS SendAwaitUrb(PDEVICE_OBJECT fdo, PURB urb) { // SendAwaitUrb PIO_STACK_LOCATION stack; IO_STATUS_BLOCK iostatus; KEVENT event; NTSTATUS status; PIRP Irp; PDEVICE_EXTENSION pdx; PAGED_CODE(); ASSERT(KeGetCurrentIrql() == PASSIVE_LEVEL); pdx = (PDEVICE_EXTENSION) fdo->DeviceExtension; if(pdx->NextLowerDriver == NULL) return STATUS_UNSUCCESSFUL; KeInitializeEvent(&event, NotificationEvent, FALSE); Irp = IoBuildDeviceIoControlRequest(IOCTL_INTERNAL_USB_SUBMIT_URB, pdx->NextLowerDriver, NULL, 0, NULL, 0, TRUE, &event, &iostatus); if (!Irp) { KdPrint((DRIVERNAME " - Unable to allocate IRP for sending URB\n")); return STATUS_INSUFFICIENT_RESOURCES; } stack = IoGetNextIrpStackLocation(Irp); stack->Parameters.Others.Argument1 = (PVOID) urb; status = IoCallDriver(pdx->NextLowerDriver, Irp); if (status == STATUS_PENDING) { KeWaitForSingleObject(&event, Executive, KernelMode, FALSE, NULL); status = iostatus.Status; } return status; }// SendAwaitUrb Tag: using KeWaitForMultipleOjbects Tag: 75515

Hi,

I wish to know which event was signalled when my thread is waiting on
more than one events using
KeWaitForMultipleOjbects

. Depending upon which event was set to signalled state my code path varies.
Once the wait is satisfied, I wish to know which event has been signalled.
How can I do this?

Regds.
Nitin

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Re: using KeWaitForMultipleOjbects by DavidP

DavidP
Wed Feb 08 23:20:43 CST 2006

It can return STATUS_WAIT_0 through STATUS_WAIT_63. More here:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/Kernel_r/hh/Kernel_r/k105_03342f87-b6a7-4e26-a7e8-5a8157026c4a.xml.asp

Make sure you read the part about the WaitBlockArray parameter also.

David

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