NdisAllocatePacketPoolEx Question

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  - 1
    - Firmware binaries and where to store them We have firmware, represented by binary files, stored on the hard drive, which are loaded onto our chip (which resides on a PCI card) by an unclassified WDM driver in Windows XP. During development, we have just installed those files into %SYSTEMROOT%\system32\ourfolder, but everyone on our team has access administrative access to those directories. If a consumer installs our card as an administrator and wants another user, without administrative privs, to use the card, this is a problem, right? In the DDK, under Still Image Devices...File System Access, I found a note that a driver could use the "All Users" profile, and create a subdirectory under the Application Data directory. Is this the best place to store my binary firmware images? When I install stuff and I want to keep record of it in the system registry, should I put it in HKEY_LOCAL_MACHINE/SOFTWARE/MYFOLDER? Thanks in advance Tag: NdisAllocatePacketPoolEx Question Tag: 67529
  - 2
    - Safe String Functions on win2k Hi can i use the Safe String Functions with win2k ddk? (do the include and link with the lib..) ? i need a safe replacment for sprintf... Thanks Tag: NdisAllocatePacketPoolEx Question Tag: 67520
  - 3
    - stream header in single bulk packet in video class uncompressed bulk stream We're writing a video class device using XP SP2 built in driver. (Uncompressed, YUY2, 640x480, in bulk mode) Is it possible to send the stream header (as video class spec 2.4) at the beginning of a new frame in a separate packet, without any video data following in the same packet ? This is much easier when interfacing to external sensors without any external FIFO between, we can do that in the idle time between each frame. But seems that when we do this, Graphedit shows just a black screen. When we append some "test" YUY2 data, we see the test image. But "appending" video data in the same packet would be difficult, when interfacing to the real sensor (we're using FX2LP in slave fifo mode). Any experience on this ? Tag: NdisAllocatePacketPoolEx Question Tag: 67518
  - 4
    - Windows Vista Mainboard Drivers Problems I have installed Windows Vista (Beta 1) on my pc but there was a great problem. My mainboard is a Gigabyte Intel Chipset and Windows doesn't install the good drivers. I tried installing the "old" ones (Xp drivers) but it didn't work. And since the mainboard is not set properly there is no way I can set up my soundcard (wich is onboard Realtek AC'97) or my network adapter (PCI - Realtek). Everytime I install any of them my PC simply resets and Windows restarts. Another strage thing happening is that windows detects automaticly my network card but loads it's own but it doesn't set it correctly. When I checked the system configuration from Hardware Manager, I noticed that at the PCI bridge section -> Resources there is a messege that says that it is not functional. I certanly would like to get this working so any advice would be great. Thanks. Tag: NdisAllocatePacketPoolEx Question Tag: 67517
  - 5
    - Retrieving page data from bitmap driver I am working w/ the sample bitmap driver from the most recent ddk. The current sample renders multi-page documents into a single large output bitmap file. I want to capture the bitmap data for each page and then pass it to an external dll. Currently, I am capturing the entire bitmap data in EndDoc. Where is the best place to capture page data? Tag: NdisAllocatePacketPoolEx Question Tag: 67512
  - 6
    - Urgent - Mutex does not lock Hi I have a simple function that logs information in my driver. Most of the implementation is ZwWriteFile that is synchronize by a kernel mutex (i use MUTEX_ACQUIRE( LogMutex ) and alike). I have a DbgPrints befoer & after the mutex, and inside the code. For some reason, it seems that sometims there are 2 threads in the code section that supposed to be synchronized.. also, i somtimes get a BSOD from ZwWriteFile and i think this is the reason. Any idea why the mutex isn't working ? Thanks. Tag: NdisAllocatePacketPoolEx Question Tag: 67510
  - 7
    - vista driver compatibility Hi, A few general questions about device drivers in Windows Vista: - Will drivers for Windows XP work in Windows Vista? - If drivers are not compatible, how much work will it be to adapt them? Are there huge changes or is it a matter of recompiling with the new DDK? As you can see, I am not a driver developer myself, but I really need this information in order to push our suppliers in updating drivers. Maybe you can point me to some articles that answer these questions. With kind regards. Tag: NdisAllocatePacketPoolEx Question Tag: 67501
  - 8
    - How can i get the Windows Vista beta1? If i stoped the order of MSDN Subscriber for half year? poly Tag: NdisAllocatePacketPoolEx Question Tag: 67493
  - 9
    - More 64 bit porting issues I hope someone can shed a little light here. I am trying to install a driver based on the bulkusb sample. It was recompiled successfully in an XP IA64 checked environment. The DDK is from the July 2005 DVD. I'm using VS .net 2003. No warnings, compiler linker state code being built for IA64. The target machine is a Dell 380 (Pentium D) and XP x64 Edition Version 2003 SP1. I'm building the driver on a 32-bit platform. The inf file was modified to use the decorations for ntia64. That got me beyond the "can't find software" hurdle. The New Hardware wizard finds the driver OK and then complains about not having a valid certificate but gives the option to install anyway. I select OK to install anyway. It then states "...driver is not intended for this platform". I've also built it using the Windows Server 2003 DDK for IA64 with the same results. There must be something else? Thanks for any pointers. Tag: NdisAllocatePacketPoolEx Question Tag: 67479
  - 10
    - How to detact a objects (Vector, text, or Image) in a customed printer driver Any one had any experience on detecting a object in customed printer driver level? Unlike in UNIDRIVER, to detect vector objects I have to intercept DrvFillPath, DrvStrokePath , but how to do it? It got to go through interpret CLIPOBJ or other parameters of these functions. Thanks in advance Tag: NdisAllocatePacketPoolEx Question Tag: 67469
  - 11
    - USBD support for Interrupt OUT transactions Am I correct in reading the DDK docs that UsbBuildInterruptOrBulkTransferRequest only supports interrupt IN transactions and not OUT transactions? TIA, SteveB, MCSD Welch Allyn, Inc. Tag: NdisAllocatePacketPoolEx Question Tag: 67467
  - 12
    - Virtual CDRom Control Panel Is source code available for the "unsupported" Virtual CDRom Control Panel driver? This is the MS utility that will mount an ISO image as a device. Is there an open source equivalent? -- Still trying to build a perpetual motion machine Tag: NdisAllocatePacketPoolEx Question Tag: 67464
  - 13
    - how to create user process in kernel mode ? Dear All: please help me,thanks. Br, Tag: NdisAllocatePacketPoolEx Question Tag: 67454
  - 14
    - hook to DrvGradientFill does not work in my Customed 2k/XP printer driver Hello, Every one: I need some help on my current project. According to MSDN's document, graphic drivers can optionally support DrvGradientFill() by setting HOOK_GRADIENTFILL flag when it calls EngAssociateSurface or EngModifySurface. we have a costomed printer driver using a GDI managed surface with standard bitmap format. I was trying to recognize a graphic (vector) object (filled with a Gradient color) by intercepting DrvGradientFill(). Somehow, if I hook up DrvGtadientFIll() in printer driver, and trying to print a Gradient object from MS WORD 2003, GDI just calls DrvFillPath() and DrvStretchblt(), never calls DrvGradientFill(), Any body give me a hint? Thanks in advance, Xiao Tag: NdisAllocatePacketPoolEx Question Tag: 67453
  - 15
    - Help me in writing win 2k Plug n Play driver for PCMCIA card Hi Everybody, We have win 2k device drivers(non plug n play) for PCI based add on card.Now we started writing Windows 2K device drivers(WDM, Plug n play) for 16 bit PCMCIA PC card.We are using ZILOG PCMCIA Adapter chip in our card. We filled the device related information like port base address,Port Range,Memory Range,Memory base and IRQ through Card Information Structure(CIS) touples. In case of pci card to detect a device we can check for Device ID and Vendor ID. How we can detect a PCMCIA device? For PCI card drivers we will get allocated resources from CM_RESOURCE_LIST structure. We can use that information as per standardized PCI configuration registers. In case of PCMCIA drivers, Allocated resources will be stored in the same CM_RESOURCE_LIST structure or no? If yes, in which format it is? Is it like same standardized PCI configuration registers? or any? Please guide me in writing the drivers for pcmcia card. If any mistake I have done in explainig my problem or if Iam going in a wrong way. Please guide me in right direction. Thank u Mahender Tag: NdisAllocatePacketPoolEx Question Tag: 67448
  - 16
    - Could i use two or more cancel- safe-queues ? Could i use two or more cancel- safe-queues with different LIST_ENTRY declare and SPIN_LOCK, but share the callback functions? ex: LIST_ENTRY for read irp / LIST_ENTRY for write /LIST_ENTRY for device io control .... share the same call back function"csqInsertIRP". poly Tag: NdisAllocatePacketPoolEx Question Tag: 67439
  - 17
    - How to know if the last boot was successfull Hi Is there some registry key (or something else) that i can read from a boot driver in order to know if the last boot was successfull? (no BSOD) And if there was a BSOD, is there any way to know what driver caused it, or what was the last loading driver? Thanks Tag: NdisAllocatePacketPoolEx Question Tag: 67436
  - 18
    - storage filter, error when sector read redirect I write a storage filter driver; and I want to implement this function: Give sector5 when get sector0 I use this method: when(Parameters.Read.ByteOffset==0) Parameters.Read.ByteOffset=512*5 but I got that winxp auto reboot after a blue screen this is my code below: ///////////////////////////////////////////////////////////////////////// FilterRead( IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp ) { PIO_STACK_LOCATION currentIrpStack = IoGetCurrentIrpStackLocation(Irp); PIO_STACK_LOCATION nextIrpStack = IoGetNextIrpStackLocation(Irp); ... // Copy current stack to next stack. *nextIrpStack = *currentIrpStack; if(currentIrpStack->Parameters.Read.ByteOffset.QuadPart == 0) { // It's not matter to deleting this line currentIrpStack->Parameters.Read.ByteOffset.QuadPart = 512*5; // if add this line, // blue screen appear and auto reboot when winxp is booting nextIrpStack->Parameters.Read.ByteOffset.QuadPart = 512*5; } IoSetCompletionRoutine(Irp, RmFilterIoCompletion, DeviceObject, TRUE, TRUE, TRUE); return IoCallDriver(deviceExtension->TargetDeviceObject, Irp); } Tag: NdisAllocatePacketPoolEx Question Tag: 67433
  - 19
    - need help! Hello, I want to write a legacy multimedia driver which work in user mode. I did read MSDN and search the web and I have some understanding on how it would be implemented but I have some questions: 1- Is there any sample code that I can use as the base for development? 2- Do I need a specific version of DDK to develop such driver? 3- If I develop such driver, is it working with all versions of windows? Best regards Tag: NdisAllocatePacketPoolEx Question Tag: 67425
  - 20
    - Driver for a custom USB audio device Hello, This is a driver hierarchy for a USB audio device. http://msdn.microsoft.com/library/en-us/AudStream/usbaudio.wmf Let's assume an USB audio device which has extra functions. For example, LEDs on device, equalizer, 5.1 channels, etc. Where is a starting point of writing a driver of the device? Do I need to write a driver which replaces USBAudio or cooperate with USBAudio driver? Thanks. Tag: NdisAllocatePacketPoolEx Question Tag: 67397
  - 21
    - PCI Port Replication for boot drivers? Greetings! I've a situation where NIC drivers are bound to an NDIS IM driver and a more regular filter driver, and in the process are made to be boot drivers (Start=0), in order to get the virtual disks set up early enough in the boot process (i.e. disk activity is sent across the network, and the presence of disks is simulated to Windows). What I need to do is to-by hand it appears-make the NIC appear as if its been installed in other slots-ones its never been installed in-for clients with the same NIC in different slots (same motherboard type). So basically I have to go to HKLM/System/CCS/Enum/PCI/VendXX_DevXX.../ and create an entry for each slot I want to go into. The entry here has the form A&B&C&D, where A,B,C,D are numbers of unknown origin. A seems to correspond to PCI bus?, B is unknown, C might be function, and D is unknown. One thing I could do is insert a card in each PCI slot and see how they're rendered in the registry, but that's non-deterministic to say the least. Any ideas about how I might otherwise tackle this problem? I can't rely on the standard DIFx tools (at least as I understand them) to pre-install a driver, because that requires PNP, which comes later in the boot process for a boot driver-too late for me, it appears. Any ideas are welcome... Thanks! Best, Steve Tag: NdisAllocatePacketPoolEx Question Tag: 67391
  - 22
    - Stream class difference I am newbie to WDM Video drivers. I would like to know the difference between AV Stream and Stream Class Driver ? IS it is doucumented ? Any tip appreciated. Tag: NdisAllocatePacketPoolEx Question Tag: 67388
  - 23
    - How to get info of common dialog box in Print Hello newsgroups: I want get dialog box info in Print, but the PrintDlg() function display a Print Dialog Box, I don't want display it. Have another function can get common dialog box info? Thanks for a lot Dake Sun Tag: NdisAllocatePacketPoolEx Question Tag: 67387
  - 24
    - Questions on KeRegisterBugCheckReasonCallback Hi I've read that this function only exists in winxp and later. Any replacment for win2k ? What things can i do from it's 2 callbacks BugCheckSecondaryDumpDataCallback BugCheckDumpIoCallback Can i write to registry and to files from these callbacks ? Thanks Tag: NdisAllocatePacketPoolEx Question Tag: 67355
  - 25
    - usb device power down Can windows power down a usb device (put down +5V)? I would like to use a software switch on PC instead of a power swith on device. The device has external power supply. Tag: NdisAllocatePacketPoolEx Question Tag: 67139
- Next
  - 1
    - a basic question Hello, I want to write a virtual driver that appears as an audio device but doesn't contact with any hardware but instead doing some user mode process ( for example saving the data to a file). Do I need to write a kernel mode driver to do this? Any help appreciated. Best regards Tag: NdisAllocatePacketPoolEx Question Tag: 67120
  - 2
    - Sending child a resource at IRP_MN_START time I have been out out NT kernel mode for a while so I would appreciate if anyone can help me. Is there currently a way for a Physical Device Object to respond to PnP IRPS (defining a new resource or sharing one of its own) such that the child's Functional Device Object receive its PnP IRP with minor function START and its stack location points to that resource? thanks Tom Currently I am defining an internal irp that the fdo sends to the pdo and the resource is returned. Also I saw a suggestion to do a filter with a custom connection between the filter and pdo. but in that case I see no advantage of that rather than a custom call between fdo and pdo. Tag: NdisAllocatePacketPoolEx Question Tag: 67113
  - 3
    - replace mobile number to a Text with GSM modem and AT commands What is the AT command that replace my phone number to a Text while sending the SMS through a GSM modem. For example, when I send in an SMS through my GSM modem, I don't want my cell no i.e. +18167867865; instead of the number I want to have ICS displayed. Is that possible to do with the help of AT commands and GSM modem? Tag: NdisAllocatePacketPoolEx Question Tag: 67104
  - 4
    - AVStream generating INVALID scatter/gather DMA mappings in Windows XP x64... Oh dear, look what AVStream is passing to my BDA minidriver as KSSTREAM_POINTERS on Windows XP x64: KsStreamPointer->Offset structure: Count = 12 (mappings) Remaining = 12 Mappings[ 0]: PhysicalAddress = 0x00000000:AE772400, ByteCount = 3072 Mappings[ 1]: PhysicalAddress = 0x00000000:AE76B000, ByteCount = 4096 Mappings[ 2]: PhysicalAddress = 0x00000000:AE76B000, ByteCount = 4096 Mappings[ 3]: PhysicalAddress = 0x00000000:AE76B000, ByteCount = 4096 Mappings[ 4]: PhysicalAddress = 0x00000000:AE76B000, ByteCount = 4096 Mappings[ 5]: PhysicalAddress = 0x00000000:AE76B000, ByteCount = 4096 Mappings[ 6]: PhysicalAddress = 0x00000000:AE76B000, ByteCount = 4096 Mappings[ 7]: PhysicalAddress = 0x00000000:AE76B000, ByteCount = 4096 Mappings[ 8]: PhysicalAddress = 0x00000000:AE76B000, ByteCount = 4096 Mappings[ 9]: PhysicalAddress = 0x00000000:AE76B000, ByteCount = 4096 Mappings[10]: PhysicalAddress = 0x00000000:AE76B000, ByteCount = 4096 Mappings[11]: PhysicalAddress = 0x00000000:AE76B000, ByteCount = 4096 Mappings 1 through 11 point to the same physical address. Thus the DMA transfer can never work right X-( Now what's puzzling is that when I use pretty much the same code on different _hardware_, AVStream generates correct mappings perfectly ok. One noticeable difference between the hardware that works and the one that AVStream generates invalid mappings for is that plugging in the latter card reduces the memory displayed by the BIOS(!) from 4GB to 3.75GB, whereas the working hardware does not. So I figure there must be something about the PCI configuration space that makes the BIOS reduce the available memory by 256MB _and_ Windows XP x64 generate incorrect scatter/gather DMA mappings. But what could that be? And how can I work around that? Puzzled,« -- Robert Schlabbach e-mail: robert_s@gmx.net Berlin, Germany Tag: NdisAllocatePacketPoolEx Question Tag: 67092
  - 5
    - avstream/bda driver uninstallation and re-installation issues Basically this has to do something with the sw-enumerated drivers. I install the avstream/bda sample drivers by right clicking the inf file. all is fine. I un-install the drivers in this way.. 1>Uninstalling from device manager 2>running rundll32 with streamingdeviceremove option. I thought these 2 issues should be sufficient to remove the driver. Now I wanted to update the driver and therefore, I copied the updated drivers into the directory and installed the driver by right clicking the INF file.For some reason it still installed the old drivers from the previous install. I found out that, this happens because Windows is caching the data in repository directory under windows\system32\driverstore. if I remove all references to my inf and drivers from the repository, then the newer drivers get installed. But this all is just too messy. Isnt there a better way ? 1>How do I update the drivers ? assuming I change something and want to test them 2>un-install and reinstall them without going through and deleting references to the INF and drivers that I had previously installed. Thanks. Tag: NdisAllocatePacketPoolEx Question Tag: 67086
  - 6
    - Is the MUX Sample Drive Incorrect? According to MSDN here (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/network/hh/network/204_802p_7a58dda8-5561-496c-bcac-5ac7b0bdac2e.xml.asp), on receive miniport drivers are supposed to remove the tag header vlan information and place it into the OOB data if the configured VLAN ID of the NIC is 0 and the packet contains a tag header. Therefore, if a packet was being received, it will have to go through the miniport driver before ever reaching the MUX driver --- right? So wouldn't the VLAN information be stripped out of the tag header and the MUX driver would never see it? Tag: NdisAllocatePacketPoolEx Question Tag: 67084
  - 7
    - XP log in notification Hi all, Is there an easy way to tell from a "C/C++" application if a user has logged on to XP and the desktop is being displayed ? I'm seeing some problems because I have a thread in my printer driver that XP starts up before any users have logged in. And this thread tries to add a status icon in the system tray. I get an error on Shell_NotifyIcon, and I'm assuming this is because the login has not happened yet, because if I log on right away, there is no problem. There must be some function that returns this kind of system status, but I can't seem to find it. Thanks! Tag: NdisAllocatePacketPoolEx Question Tag: 67080
  - 8
    - AVStream driver On changing frequency from graphedit I expect to receive multiple calls to the set property handler for KSPROPERTY_TUNER_FREQUENCY. Under what circumstances would an AVStream driver receive just one call. Also this follows a call for KSPROPERTY_TUNER_STATUS which is missing in my case. The result of this misbehaviour is that the analog tuner control in graphedit always says "Locked". Tag: NdisAllocatePacketPoolEx Question Tag: 67077
  - 9
    - modifying the bios from a driver I have recently inherited a driver for a family of PCI expansion products. The driver is written in C++ and attempts to be one of those that supports every OS/platform etc. known to man. This of course makes it incredibly hard to maintain. Simply the driver (filter to PCI.SYS) needs to discover the devices below it and make sure there are enough resources to support them. (I/O and memory) If need be, the driver modifies the PCI BIOS so that any bridges above it have enough resources and then requests the user reboots. One of the products is a carbus, so we don't know what resources we need at boot time which is the reason for the reboot. This driver broke with Windows XP SP2, I found a white paper that provided a workaround located at the link http://www.microsoft.com/technet/prodtechn...n/sp2mempr.mspx however the driver appears to still have the problem with the 64 bit AMD Turion (running 32 bit windows XP SP2). I suspect the problem is during the modification of the BIOS. I can't seem to find a lot of documentation on how to do this. The current driver does it by switching the machine to V86 mode and calling the BIOS. Where can I find the correct documentation I need to figure out how to modify the BIOS from a windows driver. As I said the driver is hard to maintain, and there is a lot of code using undocumented techniques in windows that are no longer supported for example hooking on kernel functions. I would like to re-write the driver the correct way (at least in my opinion), so I am attempting to collect all the info I need. I'm also not locked into any method, if there is a simpler way to do things that minimizes user interaction I'm all for it. Thanks, Brian Tag: NdisAllocatePacketPoolEx Question Tag: 67076
  - 10
    - 8GB nonpaged pool alloc I am writing a driver for PCIe hardware that needs an 8GB system RAM buffer. The memory does not have to be contiguous. Attempting a single 8GB nonpaged pool memory allocation using ExAllocatePool fails. System has 32GB and running Windows 64-bit. Is this possible? If not, how much RAM is needed to satisfy the allocation? Tag: NdisAllocatePacketPoolEx Question Tag: 67075
  - 11
    - IP reassembly timeout Is there a way to set the IP reassembly timeout on win2k/XP systems ? When an IP fragment is lost, the partial IP packet will remain alive until the reassembly timer expires. When the Microsoft TCP/IP layer runs out of free Reassembly headers (100 by default) all IP fragments are dropped until one of the pending reassembly expires. Which means that in the worst case quickly loosing 100 IP fragments from different IP packets will cause all incoming fragmented IP traffic to be discarded for 60 seconds !!!! On top of that with a 60 sec timeout (the current default value), the 16bit IP Identification field can wrap easily in realistic usage scenarios causing many other problems. We tried changing the MaximumReassemblyHeaders registry key, and it does not really help since using a significantly higher value (e.g. 1000) causes a huge performance degradation (e.g. mouse pointer close from frozen). Changing the number of reassembly headers also does not help with the IP identification field wrapping problem. Also there used to be a 'IpReassemblyTimeout' registry key but apparently it has been removed in some version of NT. Marc de la Gueronniere - Senior Software Engineer Tag: NdisAllocatePacketPoolEx Question Tag: 67059
  - 12
    - SFilter detach on shutdown problem Hello. I'm using sfilter (filter-high) from "NT File System Internals" book as a basis for my filter driver. The problem I found that this sample produce BSOD on system shutdown. It's happend in the folowing call stack: SFilterFastIoDetachDevice(fastio.c) -> SFilterDetachTarget(attach.c) -> IoDetachDevice Does anybody knows the reason? Tag: NdisAllocatePacketPoolEx Question Tag: 67055
  - 13
    - Another install/INF question I have a strange (to me) problem installing a driver. I've written a MIDI miniport that installs and works fine on my development machine. Installation on the test machine appears to work OK, but in fact the ActiveMovie\devenum registry keys aren't being created in the test environment. (( The end result is that the device only shows up as "input" to apps on the test machine, instead of "input" AND "output" as it does on the dev box )) Dev and test machine are both WinXP Pro, SP2 etc. I'm using the exact same INF and sys files in both cases. How does one "trace" the install/registry key creation process? TIA Tag: NdisAllocatePacketPoolEx Question Tag: 67053
  - 14
    - Preventing Specific USB device How can we prevent USB devices from being detected and allow only specific types of devices to be detected? e.g. We should allow users to connect only USB Memory. If user connects USB Keyboard, we should disable/remove it. Any pointers will be appreciated. Thanks Kiran Tag: NdisAllocatePacketPoolEx Question Tag: 67051
  - 15
    - problems with NetBT Hi all, I try to do a software bridge using NDIS IM. My computer has two NICs each connected into one network segment. The idea was that in created (logical) networ my computer would have two IP adresses (for each NIC one), so it should look like a multihomed computer. Problem occured when I tryed to "use" created network using "My Neighbourhood". Sometimes everything works fine, but sometimes not and message "Network Path Not Found" appears when I try to show list of computers in workgroup. It happens ussually in situation when a NetBT packets are sent into one network segment using (as source) IP address of NIC connected to the other one. There shouldn't be problem in used IP address, my computer should have same behaviour for both IP's (associated with my NICs). Can there be any conflict inside of NetBT ? Any ideas are welcome. Thanks for answers Michal Tag: NdisAllocatePacketPoolEx Question Tag: 67043
  - 16
    - why is the checked build of usbvideo.sys smaller than free build version? Hi, I am trying to get the checked build of USBvideo.sys loaded instead of free version. I extracted the debug build from the SP2 debug build self extracting archive downloaded from msdn. After replacing the freee build with checked build I realise that the driver wasn't even loading and the size of teh debug build is smaller than that of teh free build. Any comments? Tag: NdisAllocatePacketPoolEx Question Tag: 67040
  - 17
    - BDA driver, question about get properties from node We write a BDA driver which have two nodes, one is Tuner node and the other is Demod node, and we let the driver support all the property sets (for BDA) defined in DDK, like KSPROPSETID_BdaAutodemodulate, KSPROPSETID_BdaDigitalDemodulator, KSPROPSETID_BdaSignalStats ...etc. But we found that some properties can not access form our utility, for example, we define KSPROPSETID_BdaSignalStats in Demod node, but only KSPROPERTY_BDA_SIGNAL_QUALITY and KSPROPERTY_BDA_SIGNAL_LOCKED can be accessed, other ID like KSPROPERTY_BDA_SIGNAL_STRENGTH is fail to access. If we define this property in Tuner node, all ID can get. Another example is that, although we define KSPROPSETID_BdaAutodemodulate in Demod node, but it fail when QueryInterface for this interface. Strangely, call GetNodeInterfaces on Demod node, it return IBDA_AutoDemodulate is exist. Can anyone give me answer or hints, thanks in advance. Tag: NdisAllocatePacketPoolEx Question Tag: 67031
  - 18
    - The problem in ProtocolReceive() Hi all, In the prototype in ProtocolReceive, there are several paramaters: NDIS_STATUS ProtocolReceive( IN NDIS_HANDLE ProtocolBindingContext, IN NDIS_HANDLE MacReceiveContext, IN PVOID HeaderBuffer, IN UINT HeaderBufferSize, IN PVOID LookAheadBuffer, IN UINT LookaheadBufferSize, IN UINT PacketSize ); The parameters HeaderBuffer and LookAheadBuffer might be useful when the driver fails to get the packet from Packet = NdisGetReceivedPacket(pAdapt->BindingHandle, MacReceiveContext); But what I confuse is the difference of HeaderBuffer and LookAheadBuffer. How can I check the content of the received packet and indicate the target packet to the upper layer if PtReceive can not get the packet from NdisGetReceivedPacket directly? Many thanks! -Liang Tag: NdisAllocatePacketPoolEx Question Tag: 67030
  - 19
    - Difference between Win 2000 and Win XP build environments I am facing a strange issue : I have a WDM USB filter driver which I built using the WinXP free build environment of Win XP DDK (2600.1106) It works fine in Win 2K and Win XP However it crashes in Win Me and Win 98 Gold If however I build the same filter driver using the Win 2000 free build environment of Win XP DDK (2600.1106) ,it works fine in Win 98 Gold . Can I not build drivers for Win 98 Gold by using the Win XP free build environment ? Tag: NdisAllocatePacketPoolEx Question Tag: 67023
  - 20
    - Device Driver Signing I'm working with a company who wants to get their device drivers signed, but they don't want to have go through the process of get the 'Designed for Windows' logo. Is it possible to just get the driver signed? If so, what would you need to do? Thank you in advance. Tag: NdisAllocatePacketPoolEx Question Tag: 67019
  - 21
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Does ProtocolReservedLength have to be no more than
PROTOCOL_RESERVED_SIZE_IN_PACKET (16) bytes? I seem to recall that the value
for ProtocolReservedLength can be any length.

Thanks!

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Re: NdisAllocatePacketPoolEx Question by Thomas

Thomas
Wed Aug 03 21:15:37 CDT 2005

"Soquel Dude" <ImInSoquel@nospam.nospam> wrote in message
news:u03eRBJmFHA.2656@TK2MSFTNGP14.phx.gbl...
> Does ProtocolReservedLength have to be no more than
> PROTOCOL_RESERVED_SIZE_IN_PACKET (16) bytes? I seem to recall that the
> value for ProtocolReservedLength can be any length.
>
> Thanks!
In the past this specification was truly vague. Now it's "less vague".

The facts are that YES, the ProtocolReserved length can be greater (even
MUCH greater) than the 16-byte minimum.

The 16-byte minimum guarantees that higher-level protocols have a 16-byte
ProtocolReserved area for their use when you are making receive indications
(as a miniport).

The "NDIS Packet Discussion - Part 2" at NDIS.com discusses this. See:

http://www.ndis.com/papers/ndispacket/ndispacket2.htm

Good luck,

Thomas F. Divine, Windows DDK MVP
http://www.ndis.com

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