Best way to acess to the parallel port

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  - 1
    - USB Driver problem with PTE (bugcheck 3f) We have deployed a wdm usb printer driver to a customer site. After 22-26 hours of idling, the application crashes, leaving a dump file naming the driver as the culprit and with a bugcheck id of 3f. This means that the system has run out of PTEs(page table entries) and is unable to proceed. What is puzzling is that the driver uses only allocations from the nonpaged pool. Running pooltag on a local test system (not the customer system) shows, in the nonpaged pool, no memory leaks from the driver. There is a possibility that the driver, over time, fragments the nonpaged pool, but it doesn't seem right that the system PTEs should be affected. Do, in fact, allocations from the nonpaged pool affect PTEs? If not, what other scenarios seem possible? Besides pooltag.exe and DriverVerifier, are there other programs that might be useful in diagnosing this problem? Thanks RH Tag: Best way to acess to the parallel port Tag: 60648
  - 2
    - How to use DeviceIoControl to deliver the user mode data to give the kernel?? Hi All I have use DeviceIoControl to send user mode data to the kernel, but it wiil crash down when I copy data to Kernal dma buffer, Does anyone can help this ?? any comment or sample code is wellcome Thanks a lot Ps: I define my CTL_CODE like this #define IOCTL_SEND_DATA CTL_CODE(MY_TYPE, 0x900, METHOD_IN_DIRECT, FILE_ANY_ACCES) and send data like this DeviceIoControl(hdevice, IOCTL_SEND_DATA, MyParam, MY_LEN, NULL, NULL, &dwRet, NULL); Myparam is allocate by (MY_PARAM*) malloc(MY_LEN); typedef struct _MY_PARAM { ULONG Channel; ULONG DataLen; ULONG Message[1]; } MY_PARAM #define MY_LEN (sizeof(MY_PARAM)+1024*sizeof(unsigned char)) My Driver code is write as this KeAcquireSpinLock(&pLDI->DmaSpinLock, &oldIrql); pMPG = (MY_PARAM*) pIrp->AssociatedIrp.SystemBuffer; RtlCopyMemory((PULONG) pLDI->DMABuffers[(pMPG->DmaChannel)].Virtual,pMPG->Message,pMPG->DataLen);---->crash down here!!!! KeReleaseSpinLock(&pLDI->DmaSpinLock, oldIrql); Thanks for you read this letter,Sorry for my poor english^^""" Tag: Best way to acess to the parallel port Tag: 60639
  - 3
    - a TOOL to dump memory.dmp into text file ? Hi Experts: Is there a tool which can "translate" all information saved in a memory dump file (a kernel memory dump, or a complete memory dump) into a plain text file? I'm looking at using dumpchk, kd or windbg. But not sure how to get it done. Thanks for your info. Polaris Tag: Best way to acess to the parallel port Tag: 60631
  - 4
    - Force Win98SE to use of WRONG USB2 driver? Force Win98SE to use of WRONG USB2 driver? I bought a no-name USB2 card off EBAY. It came with win98SE drivers, but the driver locks up my system. It's a NEC chip, but there's no clue to the vendor or driver site. I found a driver from a different vendor. I can force 98SE to let me install the wrong driver and it works, Problem is that every time 98SE boots, it thinks it has a new USB card and wants to install drivers. Can I edit the registry to attach the card to the driver? How? Or maybe rewrite the .inf file to point to the driver that works and reinstall? How? Tutorial on .inf files? Thanks, mike -- Return address is VALID but some sites block emails with links. Delete this sig when replying. . Wanted, PCMCIA SCSI Card for HP m820 CDRW. FS 500MHz Tek DSOscilloscope TDS540 Make Offer Wanted, 12.1" LCD for Gateway Solo 5300. Samsung LT121SU-121 Bunch of stuff For Sale and Wanted at the link below. MAKE THE OBVIOUS CHANGES TO THE LINK ht<removethis>tp://www.geocities.com/SiliconValley/Monitor/4710/ Tag: Best way to acess to the parallel port Tag: 60628
  - 5
    - Using DDK with previous version of VC Ok, I read the release notes for the Win2k3 DDK, and it claims that DDK examples should not be compiled on a previous version of the compiler than what the DDK was written for. However it also says that for Win98/ME drivers there are cases where the driver MUST be compiled using VC6, because a later compiler simply will fail. Does this mean that in order to compile drivers at all you must use the version of the compiler that the DDK is written in? Can I build a driver for 2K or XP using VC6 and the Win2K3 DDK? TIA Tag: Best way to acess to the parallel port Tag: 60627
  - 6
    - WIN DDK for x64 build Hi, Is the DDK downloadable? I'm looking for a kit where I can generate "Windows Server 2003 Free x64 Build Environment" . Thanks, S. Evensen Tag: Best way to acess to the parallel port Tag: 60622
  - 7
    - Winlog screen displayed I need to know when the Winlogon screen is displayed. I want this as it is at this point that my app is going to know that all services are up and running. Winlogon Notification will only send an event after a user logs in and I need to know that we are ready to accept a user to log in. If a user is not going to login to this machine by using the Winlogon Notification I will never know that we are in a run state according to my app. The event before this is Startup and this is too early in the boot process for me to say we are ready to go. Do any of you know how I can tell that the logon screen is there? Is there a service that I can check that will start right about the time of the logon screen? I know that if the machine is set to auto logon a user then I will not get a logon screen but I can then use the Winlogon StartShell to know that we are ready to go. Thanks Bob Tag: Best way to acess to the parallel port Tag: 60620
  - 8
    - WM_DEVICECHANGE/DBT_DEVICEARRIVAL is so slo-o-ow WM_DEVICECHANGE (with DBT_DEVICEARRIVAL) works fine but is so slo-o-ow in CD/DVD-rom case. It is not unusual to wait about 10 seconds between injecting the tray and the moment apps finally recieves WM_DEVICECHANGE/DBT_DEVICEARRIVAL notification. Is there any way for user-mode app to get "earlier" notification about media insert/tray inject event? Many thanks! Igor. Tag: Best way to acess to the parallel port Tag: 60610
  - 9
    - SCSI_PASS_THROUGH_DIRECT and SCSI_PASS_THROUGH documentation is wr I used following links to extract information: SCSI_PASS_THROUGH_DIRECT http://msdn.microsoft.com/library/en-us/storage/ hh/storage/structs-scsibus_64c46eef-e5bc-4e81-a479-2bdbd93605e7.xml.asp SCSI_PASS_THROUGH http://msdn.microsoft.com/library/en-us/storage/ hh/storage/structs-scsibus_6d017ae1-d61d-49b8-bfaf-b6b15341732b.xml.asp Look at SCSI_IOCTL_DATA_IN description for DataIn parameter - funny, but in both cases description is different but should be always same. In my opinion should be SCSI_IOCTL_DATA_IN -Read data from the device. Is not it? Furthermore I looked into latest MSDN Library from January, 2005 but found even more funny things, for both IOCTL documentation saying that SCSI_IOCTL_DATA_IN is â??Write data to the deviceâ??:) Is this correct? Tag: Best way to acess to the parallel port Tag: 60601
  - 10
    - Inter-Driver Communication Does anyone have any ideas about how I can Send a IOCTL message from one driver to another video driver. I only have access to the code from the sending driver. Thanks in advance, Anders Tag: Best way to acess to the parallel port Tag: 60586
  - 11
    - Printer driver on Serial port I'm using the Language Monitor in the DDK. My problem is when I install the printer on a serial port (COM), I can't use that port with any other applications. Is there a way to modifiy the Language Monitor to free the port when there are no jobs printing? -- Mario Tag: Best way to acess to the parallel port Tag: 60573
  - 12
    - Does my driver cause "Access Violation in svchost.exe" ? Hi, I have an Ndis driver for Windows XP. It seems to work fine. But the Windbg might catch an "access violation in svchost.exe" error during the XP shutdown every thundreds times. Is the error caused by my Ndis driver? Or, it's a bug of svchost.exe? Below lists the windbg messages: ===================================================================== *** An Access Violation occurred in C:\WINDOWS\System32\svchost.exe -k netsvcs: The instruction at 00650066 tried to read from an invalid address, 00650066 *** enter .exr 0189F9DC for the exception record *** enter .cxr 0189F9F8 for the context *** then kb to get the faulting stack Break instruction exception - code 80000003 (first chance) *** WARNING: symbols timestamp is wrong 0x41109494 0x4060f0f2 for ntdll.dll ntdll!DbgSsHandleKmApiMsg+0x14e: 001b:7c921230 cc int 3 kd> Tag: Best way to acess to the parallel port Tag: 60571
  - 13
    - Problems unloading a driver Hi, I am trying to write an unloadable driver, to achieve that I have created a minimal, presumably unloadable driver, Loading and initializing the driver succeeds BUT unloading ( using 'ControlService(SERVICE_CONTROL_STOP)' ) fails with the following error: "The requested control is not valid for this service.", What may cause such an error? I have added the required DeviceCreate and DeviceClose ICTL Handlers but it had no effectâ?¦ // The CreateClose IOCTL I have added... NTSTATUS DispatchCreateClose(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp) { Irp->IoStatus.Status = STATUS_SUCCESS; Irp->IoStatus.Information=0; IoCompleteRequest(Irp, IO_NO_INCREMENT); return STATUS_SUCCESS; } Any help, pointers or samples would be appreciatedâ?¦ Following is the short code with which I am experiancing the problem: The Driver: ********** #pragma code_seg("INIT") // This handler is NEVER called... VOID __stdcall Unload(IN PDRIVER_OBJECT DriverObject) { UNICODE_STRING uszDeviceString; DbgPrint("Simple C++ Driver - Unload.\n"); IoDeleteDevice(DriverObject->DeviceObject); RtlInitUnicodeString(&uszDeviceString, L"\\DosDevices\\ProcDrv"); IoDeleteSymbolicLink(&uszDeviceString); TerminateCppRunTime(); } NTSTATUS __stdcall DriverEntry(IN PDRIVER_OBJECT DriverObject , IN PUNICODE_STRING RegistryPath) { DbgPrint("Simple C++ Driver - DriverEntry\nCompiled at " __TIME__ " on " __DATE__ "\n"); NTSTATUS Status = InitializeCppRunTime(); if (STATUS_SUCCESS != Status) goto ErrorExit; UNICODE_STRING uszDriverString, uszDeviceString; RtlInitUnicodeString(&uszDriverString, L"\\Device\\ProcDrv"); RtlInitUnicodeString(&uszDeviceString, L"\\DosDevices\\ProcDrv"); DbgPrint("C++ runtime was initialized successfuly...\n"); PDEVICE_OBJECT pDeviceObject = NULL; Status = IoCreateDevice(DriverObject, 0, &uszDriverString, FILE_DEVICE_UNKNOWN, 0, FALSE, &pDeviceObject); if (STATUS_SUCCESS != Status) goto ErrorExit; DbgPrint("Device created successfuly...\n"); Status = IoCreateSymbolicLink(&uszDeviceString, &uszDriverString); if(Status != STATUS_SUCCESS) { Unload(DriverObject); goto ErrorExit; } DbgPrint("Link created successfuly...\n"); DriverObject->DriverUnload = Unload; goto SafeExit; ErrorExit: TerminateCppRunTime(); SafeExit: DbgPrint("DriverEntry retruns 0x%.8x\n", Status); return Status; } #pragma code_seg() The driver Loading/Unloading routine ******************************* BOOL WaitForState(SC_HANDLE hDriver, DWORD dwDesiredState, SERVICE_STATUS* pss) { while (1) { if(FALSE == ::QueryServiceStatus(hDriver, pss)) return FALSE; // If the driver reaches the desired state if (pss->dwCurrentState == dwDesiredState) break; DWORD dwWaitHint = pss->dwWaitHint / 10; if (dwWaitHint < 1000) dwWaitHint = 1000; // At most once a second if (dwWaitHint > 10000) dwWaitHint = 10000; // At least every 10 seconds ::Sleep(dwWaitHint); } // while return TRUE; } int _tmain(int argc, _TCHAR* argv[]) { // Start the driver SC_HANDLE hSCM = ::OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS); SC_HANDLE hDriver= ::CreateService(hSCM, "ProcDrv", "ProcDrv", SERVICE_ALL_ACCESS, SERVICE_KERNEL_DRIVER, SERVICE_DEMAND_START, SERVICE_ERROR_NORMAL, argv[1], NULL, NULL, NULL, NULL, NULL); if(0 == hDriver && (::GetLastError() == ERROR_SERVICE_EXISTS || ::GetLastError() == ERROR_SERVICE_MARKED_FOR_DELETE) && (0 == (hDriver = ::OpenService(hSCM, "ProcDrv", SERVICE_ALL_ACCESS)))) return 0; SERVICE_STATUS serviceStatus = { 0 }; BOOL bResult = ::StartService(hDriver, 0, NULL); if (bResult) bResult = WaitForState(hDriver, SERVICE_RUNNING, &serviceStatus); else bResult = (::GetLastError() == ERROR_SERVICE_ALREADY_RUNNING); if (!bResult) { ::DeleteService(hDriver); ::CloseServiceHandle(hDriver); } else { // Stop the driver, returns "The requested control is not valid for this service." if(TRUE == (bResult = ::ControlService(hDriver, SERVICE_CONTROL_STOP, &serviceStatus))) bResult = WaitForState(hDriver, SERVICE_STOPPED, &serviceStatus); ::DeleteService(hDriver); ::CloseServiceHandle(hDriver); } ::CloseServiceHandle(hSCM); return 0; } Nadav. http://www.sophin.com Tag: Best way to acess to the parallel port Tag: 60569
  - 14
    - Isoch Read/Write with loopback (newbie) I am developing a driver for ISP1582/1583 for very high speed application ( ~200M). I build my driver based on isousb from WinDDK 2k3. My platform is WinXP Sp2. Now, the PC recognizes my board, but when I try using the testing application from isousb to read/write, it does not work. It seems that the testing application from DDK uses the name PIPE04 and PIPE05 directly to open the handle to the pipe. Is there any other way to overcome this problem ? I tried using the simple way, which is open a handle to the device using GUID with CreateFile(), then using ReadFile() and WriteFile() but that fails as well, GetLastError() return 22 - ERROR_BAD_COMMAND [The device does not recognize the command.] I will have to write a loopback mode application as well. The loopback will only depend on user-mode application. Am I right ? Pls enlighten me on this part. Thanks a lot ! Tag: Best way to acess to the parallel port Tag: 60563
  - 15
    - Isoch Read/Write with loopback (newbie) I am developing a driver for ISP1582/1583 for very high speed application ( ~200M). I build my driver based on isousb from WinDDK 2k3. My platform is WinXP Sp2. Now, the PC recognizes my board, but when I try using the testing application from isousb to read/write, it does not work. It seems that the testing application from DDK uses the name PIPE04 and PIPE05 directly to open the handle to the pipe. Is there any other way to overcome this problem ? I tried using the simple way, which is open a handle to the device using GUID with CreateFile(), then using ReadFile() and WriteFile() but that fails as well, GetLastError() return 22 - ERROR_BAD_COMMAND [The device does not recognize the command.] I will have to write a loopback mode application as well. The loopback will only depend on user-mode application. Am I right ? Pls enlighten me on this part. Thanks a lot ! Tag: Best way to acess to the parallel port Tag: 60562
  - 16
    - Serenum loads in Win XP, bu not on 2K; same inf !!! Hi, This is the snippet of .inf file. ... [ComPort.XXX.NT] AddReg=ComPort.XXX.AddReg CopyFiles=ComPort.XXX.NT.Copy Include=msports.inf Needs=SerialEnumerator.NT [ComPort.XXX.AddReg] HKR,,PortSubClass,1,01 [ComPort.XXX.NT.Copy] serxxx.sys [ComPort.XXX.NT.HW.AddReg] HKR,,"UpperFilters",0x00010000,"serenum" [ComPort.XXX.NT.HW] AddReg=ComPort.XXX.NT.HW.AddReg ... The same inf file loads serenum as upperfilter in Windows XP, but not on Windows 2000. Any ideas on what could be wrong? Appreciate any help. Thanks in advance. Ravi... Tag: Best way to acess to the parallel port Tag: 60560
  - 17
    - Can i create Multiple VLANs using MUX Hi, Can I create Multiple VLANs using the MUX Sample Driver. Recently very strange behaviuor is occuring. I installed and uninstalled the MUX 2-3 times and they are appearing as MUX Sample Driver # 2 , 3 , 4 , 5 etc. But I can actually set the OID_GEN_VLAN_ID in only 1 of them using NDISUIO. Pls Explain ?? What I meas is that why doesnt NDISUIO protocol binds to all Virtual Miniport Drivers(IM) but only one of them ?? Can I enumerate all the Virtual Network Adapters that the MUX creates ? TIA Regards Tarun Tag: Best way to acess to the parallel port Tag: 60549
  - 18
    - setting "custom" dvd book type I am curious if anybody can help me with the following info: 1) what CDB/SCSI command is to be used to set DVD book type? 2) how to determine whether this particular dvd-writer supports changing book type? Many thanks! Igor. Tag: Best way to acess to the parallel port Tag: 60548
  - 19
    - Multiple monitor video What APIs are available to query and/or manipulate the multi-monitor support in WinXP? Specifically, I want to be able to determine if multiple screens are configured, and toggle on/off screens other than the primary. The second can be achieved through the UI by going into the Display Properties applet, choosing the settings tab, right clicking the second (or other) screen, choosing "Attached", then clicking OK. I'm hoping there's a straightforward way to do that simple action programmatically. Erik J Sawyer Appro Systems Tag: Best way to acess to the parallel port Tag: 60546
  - 20
    - How to detect mouse double click and simultaneous click Hi everyone, I would like to detect mouse double click and (almost) simultaneous click of two or more buttons in moufiltr. Do I need a timer for that or I can do it by detecting the bits in ButtonFlags in the same or consecutive MOUSE_INPUT_DATA? Thanks in advance. Liang Fu Tag: Best way to acess to the parallel port Tag: 60544
  - 21
    - Winsock 2 & Ethernet fragmentation Hi , I'm writing this code in VC using Winsock 2, the Ethernet frames I receive are fragmented to 1524 byte due to Ethernet limitations, my code is based on this simple TCP sniffer http://www.sol-biotech.com/code/Sockets/Main.cpp Is there any way I can instruct Winsock to assemble the frame before I'm sending it to the application layer, I want to avoid the overhead of reassembling the frames Thank you, Sharon.G Tag: Best way to acess to the parallel port Tag: 60542
  - 22
    - windows xp pro x64 compatible hardware Is there a list of compatible hardware for win xp pro x64 edition? I built an athlon 64 system but most of my hardware does not work and I am not finding current drivers on manufacturer websites and the previous drivers don't seem to work. Any suggestions? Tag: Best way to acess to the parallel port Tag: 60541
  - 23
    - Who will free Irp from IoBuildDeviceIoControlRequest? From MSDN DDK document, IRPs created using IoBuildDeviceIoControlRequest must be completed by calling IoCompleteRequest and not by merely deallocating the IRP with IoFreeIrp. IoBuildDeviceIoControlRequest queues the IRPs it creates in the IRP queue of the current thread. Freeing these IRPs without completing them might result in a system crash when the thread terminates as the thread attempts to deallocate the IRP's memory. However, from DDK examples and likes from other sources, I didn't see any FreeIrp or CompleteIrp for this reason. Seems to me the IRP is not freed anywhere through the code. Who frees this IRP? Tag: Best way to acess to the parallel port Tag: 60536
  - 24
    - how to find out at kernel level if a drive Letter is map network d Hi All, on Windows 2k/XP/2k3 Is there a way to find out at kernel level if a drive Letter is a mapped Network Drive. Thanks Tag: Best way to acess to the parallel port Tag: 60531
  - 25
    - Kernel Polling for Correctable Machine Checks Is it possible to disable the Windows kernel polling for correctable machine checks on an AMD processor? I have other functionality that does the polling for these types of errors so they can be logged to a BMC and I am getting race conditions where some of the errors are caught by the OS and some are caught by my functionality. I'd like to be able to disable the OS and allow my functionality to handle all of the correctable errors. Thanks. Bob Tag: Best way to acess to the parallel port Tag: 60530
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  - 1
    - Driver for USB Flash Drive wanted - Desperate pl. HELP Hi, Sorry for spamming to most popular news groups :) I am desperate and I dont think a lot of people visit drivers news groups. I bought a Jetway iVogue 512 MB Flash USB drive recently. It did not come with driver for Windows 98. Could not locate Manufacturer website though I googled all I could. Can some one tell me how to get a Manufacturer/ Generic driver for this device ? Appreciate any help. Thanks Sanchez Tag: Best way to acess to the parallel port Tag: 60526
  - 2
    - ddraw.lib Hi All, I have a driver for WIN CE 4.2 OS, Mydriver.dll. In this driver I need to use direct draw objects. So, included ddraw.lib under the linker options. When I run the dll module, I get the following error: ddraw.lib(ddmain.obj) : error LNK2005: _DllMain already defined in MyDriver.obj MyDriver.dll has the entry point as DllMain and ddraw.lib also has the entry point as DllMain and hence the multiply defined symbols. How can I overcome this? I cannot do away with ddraw.lib. Thanks in Advance, Johns Tag: Best way to acess to the parallel port Tag: 60523
  - 3
    - RtlPrefixUnicodeString WindXPDDKSp1 I'm trying to use RtlPrefixUnicodeString in my driver on XP. Can someone *please* tell me: 1. Why my project, built within the standard Build Environment shells provided with the DDK install, can't find ntddk.h 2. Why the ddk doco doesn't tell me which lib to link to use RtlPrefixUnicodeString 3. Why linking with ntdll.lib causes my driver to fail loading. Regards, Mark Tag: Best way to acess to the parallel port Tag: 60519
  - 4
    - COM port application snooping I have a few devices that connect to PC using COM ports. I want to develop a protocol. Application will open the COM port(non-exclusive access) and send a protocol message. When it receives proper response(if at all) application knew the device and continues to talk. If the data is not expected response, may be this COM port is in use by some other application. So how can I snoop data and take it if it for my application and 'not capture' it if it is not for my application. I am not sure if I can achive it at user level itself. Do I need to dig into driver level. Is upper filter driver needed on all COM ports? Please give guidance on how I can accomplish this simple(for my boss), but not so simple. People who worked on embedded devices think COM port is piece of cake, but dont believe PC side complexities. Atleast educate me complexity here. I saw posts on virtual COM ports, but here I am not looking for any virtual COM ports, only existing ports. May be this snooping is needed on virtual COM also because from PC application all are same, but I dont need to develop any virtual ports. Thanks, Raj Tag: Best way to acess to the parallel port Tag: 60517
  - 5
    - Asking TDI send packets without calling TdiBuildSendDatagram Hi, I previously used TDI to send UDP packet, by calling TdiBuildSendDatagram, passing destination information. TDI will build the UDP packet for me. Now I'd like to build the packet myself. Is it possible that I can pass the constructed UDP packet to TDI, just ask TDI to send it? (By going through DDK, it looks like I can construct the IRP and make the TDI_SEND_DATAGRAM request. Is that the correct way?) Thanks, Tag: Best way to acess to the parallel port Tag: 60501
  - 6
    - Monitor CDROM read/write operations using filter driver Hello I want to monitor read and write operations from CDROM (on win xp and 2000). >From what I've read so far, I understand that I need an upper filter driver over scsiport.sys, and to monitor writing for example I need to check for IOCTL_SCSI_PASS_THROUGH. Is this correct? Any guidance on how to do it? Does this method monitor writing from all burning programs? Can anyone supply me with information about ASPI, IMAPI and why CD writing is done through the SCSI bus and not through the cdrom driver? Thanks, Sharon Tag: Best way to acess to the parallel port Tag: 60498
  - 7
    - Find out the source port of socket created using ZwCreateFile Hi, I am using ZwCreateFile to create a raw udp socket, with dynamic source port. After creating the socket, how can I find out what the source port is? //code looks like: Status = ZwCreateFile ( (PHANDLE)&AddressHandle, GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE, &ObjectAttributes, // object attributes. &IoStatusBlock, // returned status information. 0, // block size (unused). 0, // file attributes. FILE_SHARE_READ | FILE_SHARE_WRITE, // share access. FILE_CREATE, // create disposition. 0, // create options. EaBuffer, // EA buffer. Length); // EA length. Thanks Tag: Best way to acess to the parallel port Tag: 60497
  - 8
    - Trying to send multiple small IRPs -- thread hangs? I have a problem with my driver which is a disk filter. I have to break up read/write requests into multiple smaller requests to send to the disk driver. IoMakeAssociatedIrp() is exactly what I need, but the DDK states that IoMakeAssociatedIrp() can only be used by the top-most driver (FSDs). Heeding the DDK's warning, I have instead written code that calls IoBuildSynchronousFsdRequest() to build an IRP to be sent synchronously to the disk driver. The code is essentially copied verbatim from the DDK samples: KEVENT ke; PIRP Irp; KeInitializeEvent(&ke, NotificationEvent, FALSE); Irp = IoBuildSynchronousFsdRequest(...); stat = IoCallDriver(NextDevice, Irp); if (stat == STATUS_PENDING) KeWaitForSingleObject(&ke, Executive, KernelMode, FALSE, NULL); For some reason all threads that go down this code path end up hanging in IoCancelIrp() when they try to terminate. My event gets set to indicate that the IRP has completed, but the IRP is still queued to the thread. Since the kernel does not BSOD, I presume IoFreeIrp() isn't actually called. My question is two-fold: 1) Is there any reason why IoMakeAssociatedIrp() wouldn't work? I don't see any intrinsic reason for the DDK's stern warning against using this in a lower-level driver. 2) If IoMakeAssociatedIrp() is out of the question, why is my driver causing threads to hang? TIA -Matt Tag: Best way to acess to the parallel port Tag: 60496
  - 9
    - multicast configuration on windows What are the configurations I need to setup to respond to multicast packets ? I am working on Windows 2003 server, I start a ping to 224.0.0.1, I dont get response back from my own server or the other windows server which is in the same subnet. But I am getting responses back from linux hosts which are also on the same subnet. Thanks Tag: Best way to acess to the parallel port Tag: 60488
  - 10
    - TDI driver calling ClientEventReceive handler problem I have a TDI driver (for a message-oriented protocol, not TCP/IP) which I am trying to run with a WinSock interface by using a helper DLL. The basic functions such as bind, accept, connect, recv and send are working, but I have found a problem when testing the select function which is not indicating when data is available for reading. The driver in its original form did not provide for the registration of a ClientEventReceive handler, so I have had to change the code to cater for this. Now, when data is received and I call the handler, it is always returning STATUS_DATA_NOT_ACCEPTED: this is with a test program where a single byte of data is available and the ReceiveFlags parameter is set to TDI_RECEIVE_NORMAL | TDI_RECEIVE_ENTIRE_MESSAGE. I have traced into the handler code and can see that it is checking AfdPollListHead which indicates that there is nothing on the list, though of course without access to the AFD source code it is impossible to tell whether this is really relevant to my problem. Does anyone have any ideas about what might cause this problem? Am I right to assume that the WinSock select depends on the ClientEventReceive handler accepting the data? Thanks, Geoff Oakes Tag: Best way to acess to the parallel port Tag: 60487
  - 11
    - Hyper-Threading Technology I have a problem with my PCI device driver ( Windows XP). It does not work properly on computers with Hyper-Threading Technology CPU. Even if I canceled Hyper-Threading option in the BIOS Setup! The computer has stuck after a few hours of work. That not happened on computers without Hyper-Threading. This is an example of my code: affinity = KeQueryActiveProcessors(); vector = HalGetInterruptVector(deviceExtension->InterfaceType, deviceExtension->BusNumber, deviceExtension->InterruptLevel, deviceExtension->InterruptVector, &irql, &affinity ); What I do wrong? Thanks. Victoria Tag: Best way to acess to the parallel port Tag: 60485
  - 12
    - VirtualPC & SoftIce Hi, I am tring to install Numegas SoftIce debugger on a VirtualPC WinXP, the installation succeed BUT when I try to start SoftIce ( Concerning it was installed in Manual startup mode ) I get Catastrophic CPU faliure and the VirtualPC restart... I wonder... Is it possible to install SoftIce on VirtualPC? if so, what am I doing wrong? what should i do to enable SoftIce on VirtualPC ??? Any help, samples or pointers will be appreciated. Nadav http://www.sophin.com Tag: Best way to acess to the parallel port Tag: 60483
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    - x64 driver Hi, I am developing storage driver. migrating for WindowsXP x64 edition from 32bit. I got link errors: 1>addev.obj : error LNK2001: unresolved external symbol __imp_KeGetCurrentIrql 1>isr.obj : error LNK2001: unresolved external symbol __imp_KeGetCurrentIrql 1>r592.obj : error LNK2019: unresolved external symbol __imp_KeGetCurrentIrql referenced in function R592_CreateClose 1>pnp.obj : error LNK2001: unresolved external symbol __imp_KeGetCurrentIrql 1>control.obj : error LNK2001: unresolved external symbol __imp_KeGetCurrentIrql 1>power.obj : error LNK2001: unresolved external symbol __imp_KeGetCurrentIrql 1>addev.obj : error LNK2019: unresolved external symbol __imp_KeInitializeSpinLock referenced in function R592_AddDevice 1>objchk_wnet_amd64\amd64\rimsptsk.sys : error LNK1120: 2 unresolved externals I'm usging Windows DDK 3190.1289. and using "Windows Server 2003 Free x64 Build Environment" instead of WindowsXP x64.(because WindowsXP x64 not found in menu ) Anyone have any help ? ---- ishikawa Tag: Best way to acess to the parallel port Tag: 60478
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    - ServiceMain Hi... I am trying to call the API StartService(), which I assume in turn will call back my â??ServiceMainâ?? function. In the Servicemain function all I am doing is â??RegisterServiceCtrlHandlerâ?? followed by a SetServiceStatus() with the current state as SERVICE_RUNNING. Thatâ??s itâ?¦ However, with this my StartService() call fails with the following error â??The service did not respond to the start or control request in a timely fashionâ?? Not sure whatâ??s missingâ?¦â?¦ Thanks... Tag: Best way to acess to the parallel port Tag: 60476
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    - CDRW I recently replace my CDROM hard drive with a CDRW 52x32x52 Rosewill and I am having problems. It does not display under "My Computer" nor does it automatically start working on a CD when you put in a software program, however if I put a CD in the CDROM drive, then go to "MY COMPUTER" it shows the 'D' drive and I have to double click to start my program running. WHY IS THIS? Tag: Best way to acess to the parallel port Tag: 60466
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    - NDIS Miniport Serial Driver Hi, i currently have two modems attached on serial ports which i would like to run TCP/IP over when a link is established. Although i can get one machine to accept a connection and one to dial in, i ideally want a bi-directional link... that is either side can initiate a connection. From my exeperiments once a port is listening for incoming calls an outgoing connection cannot be made. This is purely with the available services on our XP machines. I have played about with the windows DDK and have seen the virtual serial port driver which emulates the responses of a Hayes AT modem. One of my thoughts is to have the modem appear as a network device under the network and dialup connections folder. When an incoming call is accepted the network device would be available, and appear disconnected at all other times. I would control the logical link (dialing and link detection) in the driver layer. >From my short searches on newsgroups it seems this question is similair to other peoples. Even if the bidirectional dial in / dial out can be done by other means, i am still interested in creating a network device which controls a device on the serial port for our propriatory radio modems. Many thanks for your time, Chris Tag: Best way to acess to the parallel port Tag: 60462
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    - HPGL Plotter Driver Does one exist for XP ? Tag: Best way to acess to the parallel port Tag: 60460
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    - NDIS_TASK_TCP_LARGE_SEND NDIS_TASK_TCP_LARGE_SEND structure member definition from MSDN Home > MSDN Library > Win32 and COM Development > Driver Development Kit > Network Devices and Protocols > Reference > NDIS > Structures Used by NDIS Drivers MinSegmentCount A miniport driver set this to the minimum number of segments that a large TCP packet must be divisible by before the transport can offload it to a NIC for segmentation. The transport will not offload a large packet to the miniport driver for segmentation unless the miniport driver can create at least MinSegmentCount segments from the packet. If a large TCP packet does not meet the minimum-segment requirement, the TCP/IP transport itself segments the packet into smaller packets. The 1st sentence and the 2nd does not seem to match each other. Is it the expected minimum segment count input from TCP/IP transport to NIC before segmentation offload (my interpretation from 1st sentence) or is it the expected minimum segments that the NIC segmentation offload can create for a given packet passed from TCP/IP transport (my interpretation from 2nd sentence)? Regardless, I am not quite sure why this parameter is important. How does any value other than 1 make sense? Anyone can explain? Doesn't "MaxSegmentCount" by NIC offload engine make more sense? If PDU is larger than MaxOffloadSize*MaxSegmentCount, the NIC offload engine won't be able to do the right segmentation. TCP/IP transport should not offload in this case. Thanks! Heng-Hsin Tag: Best way to acess to the parallel port Tag: 60457
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    - network connection icons I am trying to figure out when and how network connection icons are created while a network device driver is installed. I see that this is directly related to the keys in the registry at HKLM\CurrentControlSet\Control\Network\{}, but what cases them to be created? The reason why I am interested is because I have a MUX IM based driver that keeps creating new entries upon installation and de-installation and I would like that to stop. -- davidg Tag: Best way to acess to the parallel port Tag: 60433
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    - Is it possible to use named pipes in a kernel mode device driver? Hi, please forgive me if that's a stupid question, but I'm currently starting to write my first device driver. I'm trying to use named pipes in the devide driver code and therefore had to include kernel32.lib. The code is compiled and linked fine, but upon driver installation XP says that it cannot load the driver. If I remove kernel32.lib from TARGETLIBS, the driver is loaded without problems. Any help greatly appreciated. Thanks Michael Tag: Best way to acess to the parallel port Tag: 60432
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    - Smartcard Device Path exerciser test fail Hi, I have two questions if anyone could help... 1) I have a smartcard driver that does not implement the IRP_MJ_READ or IRP_MJ_WRITE, however in the device path exerciser test, it pounds the driver with zwwritefile and zwreadfile requests. This of course gets rejected by the OS as I do not register any IRP_MJ_WRITE or IRP_MJ_READ handling routines. The test then says the DevPathExer has stopped making progress... Attempting to resume thread. Is this normal or do I need to do something about the WRITE and READ? 2) Also after the above occurs, the test will think the thread is hung and continue to the next case. the next case sends a zwDeviceIoControl command (which I can't find any info on) and hangs... in my windbg, I can see the message telling me an IRP dispatch handler has returned without passing down or completing this IRP or someone forgot to return STATUS_PENDING. When I do a !IRP, it tells me Irp is active with 2 stacks 2 is current but not much more info. It seems to be the IRP_MJ_DEVICE_CONTROL, but in my code that handles that call, all I do is pass the IRP to the smartcarddevcicecontrol API which is suppose to handle, complete, pass on...etc... the IRP for smartcard readers. Thus I'm not understanding why I'm getting the error. Anyone have any ideas? Thanks! Tag: Best way to acess to the parallel port Tag: 60431
  - 22
    - _CL_ setting in DDK's setenv.bat Curious about these explicit settings in the DDK's setenv.bat (3790): set _ML_=/Zvc6 set _CL_=/Ztmp set _LINK_=/Tmp There seems to be no documentation of any of them anywhere, and the only reference appears to be in "i386mk.inc" in the entire DDK. I believe they have stayed like that for a while. Now that it gives a warning (warning D4002 : ignoring unknown option '/Ztmp') for each and every single user-mode component that I build with PREfast, I've come to a point that I'd like to understand better the intent behind these settings and what to do to get rid of the warning without introducing problems down the road (yep, I cannot bear with any dust in the code, and am living in a glass house 8-) Thanks in advance for any insight. Apologize if this is a wrong forum for the question, or if it was answered before (I did look left and right before the post). Regards, -Brian Tag: Best way to acess to the parallel port Tag: 60430
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    - Printer driver installation from Windows 2003 Clustere server to W Windows 2003 Clustered server has a new method to install printer drivers. Previously, the admin had to install the printer drivers to the each node of the clustered server and delete the printers. Then he/she could install the printer driver to the clustered server. The new way is to install the printer driver to the clustered server directly from an outside the machine (no nodes for the clustered server). Installing the printer driver to the Windows 98 client fails if I use the new installation method. The installation process does not know where to find some/all driver files. But the old installation method does not have any problems. Is Microsoft aware of this issue? Is Windows 98 client officially not supported by Windows 2003 Clustered server? Is there a workaround or solution? Please let me know. Thank you. Tag: Best way to acess to the parallel port Tag: 60428
  - 24
    - Printer Driver for Windows 2003 Clustered Server Printer drivers installed on NT4.0 client from the Windwos 2003 Clustered server has a serious performance problem with displaying the Properties and Printing Preferences. When I opened the Properties on NT4.0 client, "General", "Sharing", "Ports", "Advanced", "Color Management", and "Security" pages open fine. But the vendor specific pages load extremely slow. It takes about one to two minutes to open a page. Then when I press "OK" or "Cancel" button, it also takes the same long time to close the Properties window. Samething happens to opening the Printing Preferences page. I checked other vendor's drivers by installing them to Windows 2003 Clustered server and NT4.0 client environment. The same thing happens. Opening the vendor specific pages takes a long time. Could you please let me know if Microsoft is aware of this problem and if there is a walk-around or a solution? Thank you. SL Tag: Best way to acess to the parallel port Tag: 60426
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    - Changing the name of a driver's DriverEntry entry point? The DDK says that this is possible, but I can't figure out how to do this. I tried to override the options to the linker, providing a new '/entry:' option, but the utility simply puts it's own "/entry:DriverEntry" at the end, after my change. The line that sets the driver's entry point is in makefile.new, but I can't figure out a way to override that setting (sets DRIVER_ENTRY macro) either from the command-line or from the SOURCES file. Any help would be greatly appreciated. Thanks in advance. Brian Tag: Best way to acess to the parallel port Tag: 60414

Hi!
First,let me explain the situation : I have a special device that is
connected to the parallel port(Using ECP or EPP) and I need to
communicate with,use DMA(PC to the device) and IRQ under Windows
2000/XP.
For the moment, I have successfully used some I/O drivers to access
directly to the port(PortTalk,DLPortIO...),but it seems to be in a
dirty way(and I am not sure that I can use DMA),as these drivers are
using some undocumented functions to LOCK/UNLOCK ressources,overriding
the parport.sys driver.
For the moment,I am quite confused,because I don't know what is the
best way to access to the parallel port.
Must I write an UpperFilter driver for parport.sys that handle some
custom IOCTLs?
Must I write a parallel port class driver(Like parclass)?
Or,can I just lock ressources when I use the application,as it is going

to be the only one that access to the parallel port,when loaded?
I also heard that if It's also possible to remove parport.sys and to
replace it with a "home made" driver,but I am not interested by this
case cause I want to keep the parallel port working normally with other

applications.

Thank you in advance and sorry for my bad english.
Nassim.

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