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- Previous
  - 1
    - Where can I find the color format of source surface in DrvCopyBits function? I'm writing a mirror driver that is able to capture the display of the screen, and send the images to the remote machine through network, and then project them onto the remote screen. just like what netmeeting does. most of display were projected onto the remote screen correctly. But some images weren't. Especially, when I played a video, the clip was projected onto the remote monitor, but colors were change. Let me explain briefly what I have done here. for example, in DrvCopyBits function, I grab the bitmap in the source surface, psoSrc, and send the bitmap to remote machine. I create a DIB bitmap in remote machine, and display it using BitBlt. Now I found that the reason why the color looks changed in remote machine is RGB orders are different between color format of device context of remote machine and that of the bitmap. I really got stuck here. Where can I find the color format of SURFOBJ structure, such as RGB masks? I hope what I wrote won't confuse you. Does any driver masters please give me some suggestion? Thanks in advance, Tag: about autocheck Tag: 70997
  - 2
    - Installing network driver programatically on win98 Hello, I need a pppoe driver on windows from xp to 98. Xp has pppoe built in, but I need to install it from .inf file on previous versions. I tried using SetupDi* functions, but they don't seem to work on 98. Is there anything similar to SetupDi functions on 98? Thanks. Mike Tag: about autocheck Tag: 70987
  - 3
    - about IAMVideoProcAmp test. of HCT(video capture driver) I am watching ERRORs and WARNINGs of HCT(12.1.01) Result for our video capture driver. (A) is a part of IAMVideoProcAmp test. I don't understand (B). Our capture device didn't catch 128, but 1 as "High + 1" from what I watched CATC's log. Would do you have such a errata as this ? (A) Testing property Contrast Maximum Value 127, Minimum Value 0 Default Value 63, Current Value 63, Granularity:1 ProcAmp_Test Propset :Contrast, Set High (Valid) ProcAmp_Test Propset :Contrast, Set Low (Valid) ProcAmp_Test Propset :Contrast, Set LONG_MIN (Invalid) ProcAmp_Test Propset :Contrast, Set LONG_MAX (Invalid) ProcAmp_Test Propset :Contrast, Set High + 1 (Invalid) WARNING: ProcAmp Property Contrast: Could set to Invalid Range (0128) (MIN:0, MAX:127) ......(B) ProcAmp_Test Propset :Contrast, Set Low - 1 (Invalid) ProcAmp_Test Propset :Contrast, Walk from low to high (Valid) Setting To: 0 (Valid) Setting To: 1 (Valid) Setting To: 2 (Valid) Setting To: 3 (Valid) Thanks in advance shinji Tag: about autocheck Tag: 70979
  - 4
    - USBD_SHORT_TRANSFER_OK on Isochronous In I'm using the DDK (3790) isousb driver example to check out my high-speed hardware - it generates 1000 byte packets approx every 300uS, so sometimes when it is polled by the PC it has no data ready and so sends a zero-length packet (as req'd by the spec). However the driver doesn't seem to react to these. The USBD_SHORT_TRANSFER_OK flag is not set (in PerformHighSpeedIsochTransfer()), yet the driver just shows occasional zero-length packets received in amongst the 1000-byte packets. I was expecting to see something in urb->UrbIsochronousTransfer.IsoPacket[i].Status, but it is zero for all packets. [I am doing a 8000 byte read request (from the rwiso app), so the IRP is split into a single subsidiary irp/urb, containing 8 packets.] Shouldn't there be an error generated, or have I misunderstood the purpose of this flag? (in which case what is it for) Thanks Tag: about autocheck Tag: 70971
  - 5
    - USB stack gives misleading indications when Polling Interval not 1 [apologies for the repost; I didn't realise I could post as 'MSDN subscriber'] I am seeing some incorrect indications from the usb stack (XP SP2) when my device indicates a Polling Interval of 2 on its isochronous endpoint: My hardware has a high speed (not high bandwidth) iso In endpoint; it generates fixed size 1000-byte packets at an interval very slightly over 250uS. I have taken the isousb sample from the 3790 DDK, and adapted it to work with my configuration. Because of the data rate, it seemed sensible to increase the polling interval on that endpoint so as to only poll every other microframe, so I set a value of two. I use the test app (rwiso) to read an amount of data from the device, and the driver output is as follows: IsoPacket[0].Length = 0x03E8 IsoPacket[0].Status = 0 IsoPacket[1].Length = 0x0000 IsoPacket[1].Status = 0 IsoPacket[2].Length = 0x03E8 IsoPacket[2].Status = 0 IsoPacket[3].Length = 0x0000 IsoPacket[3].Status = 0 IsoPacket[4].Length = 0x03E8 IsoPacket[4].Status = 0 IsoPacket[5].Length = 0x0000 IsoPacket[5].Status = 0 IsoPacket[6].Length = 0x03E8 IsoPacket[6].Status = 0 IsoPacket[7].Length = 0x0000 IsoPacket[7].Status = 0 IsoPacket[8].Length = 0x03E8 IsoPacket[8].Status = 0 IsoPacket[9].Length = 0x0000 IsoPacket[9].Status = 0 IsoPacket[10].Length = 0x03E8 IsoPacket[10].Status = 0 IsoPacket[11].Length = 0x0000 IsoPacket[11].Status = 0 IsoPacket[12].Length = 0x03E8 IsoPacket[12].Status = 0 IsoPacket[13].Length = 0x0000 IsoPacket[13].Status = 0 IsoPacket[14].Length = 0x03E8 IsoPacket[14].Status = 0 IsoPacket[15].Length = 0x0000 IsoPacket[15].Status = 0 IsoPacket[16].Length = 0x03E8 IsoPacket[16].Status = 0 IsoPacket[17].Length = 0x0000 IsoPacket[17].Status = 0 IsoPacket[18].Length = 0x03E8 IsoPacket[18].Status = 0 IsoPacket[19].Length = 0x0000 IsoPacket[19].Status = 0 IsoPacket[20].Length = 0x03E8 IsoPacket[20].Status = 0 IsoPacket[21].Length = 0x0000 IsoPacket[21].Status = 0 IsoPacket[22].Length = 0x03E8 IsoPacket[22].Status = 0 IsoPacket[23].Length = 0x0000 IsoPacket[23].Status = 0 So this suggests that every other packet is coming back zero-length. However, when I look at the entire buffer from the user-space app there are no gaps - every piece of data *is* there (and correct) from beginning to end - all 24 packets. The return value from the read() call is 12*1000 yet the whole buffer has in fact been written. I've also used SnoopyPro to examine what the stack thinks the packets contain, and diagrammatically (and very much simplified), this is what I'm seeing (with "." indicating a zero-length packet): According to stack Actually in buffer 0 1 2 3 0 1 2 3 . 4 5 6 7 8 9 A B 8 9 A B . C D E F 0 1 2 3 0 1 2 3 etc This is a problem to me because I will occasionally get genuine zero-length packets (due to the data generation being asynchronous to the usb frames), and I need to be able to detect them. The USBD_SHORT_TRANSFER_OK flag is not set. This only happens when the Polling Interval is 2; when it is set to 1 then the behaviour is as expected (albeit interspersed with genuine zero-length packets, generated by the h/w when it is polled but has no data available). I'm running a free build XP SP2, but with checked versions of ntoskrnl, hal, usbport.sys, usbccgp.sys and usbd.sys (also from an SP2 version). Is it a bug in the usb stack? There is a report of this kind of problem - http://support.microsoft.com/?kbid=837371 - but although it is dated only a few days ago, it seems to be saying that the issue is fixed in SP2; and I have newer versions of all the files indicated (though why don't I have usbccgp.sys - isn't that needed for composite devices??) [I'm having trouble with my Win2K installation at the moment, so I've not had a chance to compare]. In fact, as I repeat the test today to check my results (before hitting "Send"), I'm *also* now seeing an additional effect: a packet with a length of 1000, but contents all zero - but, again, without any loss of data - where there *is* data in the buffer it is continous and valid (the data stream contains a count to help spot discontinuities). What with the results I was seeing yesterday plus this additional weirdness I'm now seeing, I'm wondering if there are still issues with non-one values of polling interval? Anyone got any thoughts? Can anyone at MS confirm whether 837371 really is fixed? Thanks. Tag: about autocheck Tag: 70966
  - 6
    - Big allocation AND per process memory! Hi EveryOne! 0 See [ http://msdn.microsoft.com/newsgroups/managed/default.aspx?dg=microsoft.public.dotnet.languages.csharp&mid=7f32b8de-2204-47e7-9ed9-0e2f5f60c316 ] what MS guy is talking about memory allocation , i wonder that they say that process address space can be 4 GB [ 32 bit architecture ] memory with one half for kernel and another for user. Ok! lets say that you can just use 2 GB with any user application , fine. If i write a kernel mode code which can access user and as well as kernel space then it should be able to take care of 4 GB. But why Microsoft guys are just saying NO for big allocations? It might be possible that lack of addressing flat memory is due to other than OS itself like TLB , HW cache , VM manager architecture etc.. 1) Say Windows 32 bit OS for intel architecture. 0) Kernel space = 2 1) User space = 2 Total process space = 4 GB. User mode App. = You have just 2 GB to move around , you keep you data, routines and string for file mapping here. Kernel mode code = Ok here you can move around 3 GB. You can see that our system is consuming min 1 GB [PCB , stack etc.] in both cases. So we can see that system is spoiling 4 GB [ one process] for every four processes;-) that is what i'm thinking. Regards -ali Tag: about autocheck Tag: 70960
  - 7
    - Visual softice Urgent Line of vision softice, I need urgent the Line of vision softice, if somebody has it communicates to the mail hcapillo@gmail.com Tag: about autocheck Tag: 70959
  - 8
    - Programmatic USB device eject I have a USB MSC device for which I've written a desktop application that can eject the device similar to using the Unplug or Eject Hardware utility. Currently, my code calls CM_Request_Device_Eject to cleanly eject the device. However, the device does not sense that it has been disconnected. If I call DeviceIoControl with IOCTL_STORAGE_EJECT_MEDIA, the device does sense that it was ejected but I also get the Unsafe Removal of Hardware dialog under Windows 2000. Is there a correct method to cleanly stop the device and have it sense that it has been disconnected under Windows 2000 and XP (no support needed for older OSs). Thanks. Glenn Tag: about autocheck Tag: 70958
  - 9
    - How to uninstall 1394 debugger device Hi, I have to PC's where my firewire card has been unavailable after installing MS Debugging tools 6.5.3.7. It seems that the drivers "1394 Host Debugger I/O Driver" and "1394 Windows Debug Driver(Kernel Mode)" is stopping the card from working. The problem is that it seems impossible to unstall the drivers/software !! Please help Thank you in advance. Peter Tag: about autocheck Tag: 70956
  - 10
    - Run unsigned PnP drivers by users without administrative rights I have been trough a lot of documentation, but I haven't got a good solution to this problem. We need to run unsigned PnP drivers, by users without administrative privileges. This has to be done silently without dialogs. We have tested the drivers and found them ok in our systems. Actually most of them are drivers included in the Windows XP, but with INF-files for additional hardware. We have also made packages of the driver installations, so that everything is in place. We have no control over when the devices are used for first time, but the device should just work when activated. Everything work ok except that the users get the "found new hardware" dialog and is prompted for an administrator account. Is there any way to get around this? We have full control over the driver files and the users have no access to change or remove the files. The computer and user accounts are also fully controllable with GPO's. Some white papers mention the use of "trusted path" but I can't figure out how and I assume that is referred to when an unattended installation is done. I also read something about using a local certificate. I couldn't find more info about that either. Any suggestions? Otherwise we have to grant our users administrative rights and I would really hate that. Tag: about autocheck Tag: 70948
  - 11
    - DIFxApp Hi, I have a problem installing a driver with DIfxApp. I recive an error in the MSI log that there is a problem with the install service section of the inf file... however it works fine with windows xp is in debug mode Any Ideas? Thanks Adam Tag: about autocheck Tag: 70947
  - 12
    - Keyboard FIlter Driver for Belking n52 on x64? The Belkin n52's a great device, but Belkin doesn't want to update thei software for x64, leaving us with a gamepad that maps to the left-mos side of the keyboard, as well as a second mouse. Sure, you could rema keys with a standard remapper, but that'd affect the regular keyboard a well. Has anyone written a remapper that can map a *specific* keyboar attached to a USB port? (and, perhaps, the secondary mouse) Bonus points if it can map to a script or other sequence of keyboar events, mouse events, and waits. If not, I've downloaded the DDK, but don't quite know where to begin. My background's in distributed software, not device drivers, though th examples *look* like they should be easy enough. But I know enough t see the big warning sign overhead - kfarme ----------------------------------------------------------------------- Posted via http://www.codecomments.co ----------------------------------------------------------------------- Tag: about autocheck Tag: 70945
  - 13
    - KeInitializeMutex on a struct Hi Folks, I am looking to create a mutex on a struct for a kernel device driver. >From the DDK it says you need KeInitializeMutex() but I was wondering how you initialize the mutex on the struct. KMUTEX mutex; KeInitializeMutex(&mutex,0); Where does the structure get allocated? Thanks in advance for the help, Cheers, Con Tag: about autocheck Tag: 70944
  - 14
    - What is the difference between ATSC and DVBT bda driver? I have developed a bda driver for dvbt, and now, I want to make it compatible with atsc. I modified the KSNODE_BDA_COFDM_DEMODULATOR to KSNODE_BDA_8VSB_DEMODULATOR, should I modify other things? Tag: about autocheck Tag: 70943
  - 15
    - Multiple terminal sessions, events not seen by all. I've got an multiple copies of an app running in multiple terminal sessions In the user mode, I've created an event (CreateEvent, manual reset) and I pass this off to a kernel driver. In the kernel, I do KeSetEvent, and then KeClearEvent right away to clear it. I am expecting that all the sessions , which I know are all waiting on the event, would see the signal. This is not the case. The signal is seen only by one session. And it does not matter which is the active session, it is only seen by the last session that created the event . Help? -- Gak - Finecats Tag: about autocheck Tag: 70935
  - 16
    - Question about NtCreateProcess I have hooked NtCreateProcess but there is something extremely strange, in the documentaion for this api we find NtCreateProcess( OUT PHANDLE ProcessHandle, IN ACCESS_MASK DesiredAccess, IN POBJECT_ATTRIBUTES ObjectAttributes OPTIONAL, IN HANDLE ParentProcess, IN BOOLEAN InheritObjectTable, IN HANDLE SectionHandle OPTIONAL, IN HANDLE DebugPort OPTIONAL, IN HANDLE ExceptionPort OPTIONAL ); However, ObjectAttributes is optional. This is strange, how will the kernel know which process we want if it doesn't have it's name ? or in other words, how do I obtain the process name when ObjectAttributes is NULL? Thanks Tag: about autocheck Tag: 70919
  - 17
    - How can I DbgPrint a UNICODE_STRING ? Can someone help to print a UNICODE_STRING to the debig window? The string is in POBJECT_ATTRIBUTES ObjectAttributes ObjectAttributes->ObjectName I believe this is correct so far? But how can I print it, can I use DbgPrint ? DbgPrint(("message %s \n", buffer )); but buffer is normally ansi Thanks Tag: about autocheck Tag: 70913
  - 18
    - Storage spti example problems Hi, When I build & run this sample on a secondary hard disk (e:), I get "Incorrect function" errors on the write and read data buffer operations. Any reason this sample shouldn't work as is? Ultimately I need to read & write directly to a disk, as the sample should do. I can get read to work by changing to a read sector command 0x28, but still fail with write sector command 0x2A. Any help would be greatly appreciated, I'm new to SCSI i/o. -- Robert Tonsing Tag: about autocheck Tag: 70905
  - 19
    - Network Provider Hi all, I need to export NPCancelConnection function from my np.dll, what oridinal should I assign !? Thanks Ale Tag: about autocheck Tag: 70904
  - 20
    - AV Stream renderer Hi All, The situation: I wrote a virtual filter-centric AV Stream renderer and it works fine in the graphedit - I feed it from the WM ASF reader; I can see arriving frames in my Process callback- the renderer swallows them by setting BytesUsed = BytesAvailable - everything is ok, But when I access this renderer by the waveOutOpen function and as soon as I submit the only buffer by the waveOutWrite function, my Process callback is called in endless loop, it seems like the same frame is delivered again and again and again. Any ideas why it happens? What the difference between these two cases? TIA Andrew Tag: about autocheck Tag: 70901
  - 21
    - Memory leak with my virtual printer driver from genprint I had compiled the C:\WINDDK\2600.1106\src\print\genprint sourse code and made virtual printer driver which gives me spl files in emf format. It works perfectly when i try to print to it from MS word or Notepad. But one of our other programs when written to this drirver acted bit differantly. That particular program tried to print to particular driver many times in a loop and then we had a big memory leak which blowed the entire program. Please help Tag: about autocheck Tag: 70897
  - 22
    - How to open a file ? Is it possible to open a file in a device driver ? If so what do I use instead of CreateFile, WriteFile, CloseHandle? t. Tag: about autocheck Tag: 70894
  - 23
    - Device stack reordering when driver is reloaded Hi, On my system, my vendor (IBM) preinstalls a filter driver (IBM Active PCI a.k.a. ibmhpf.sys) that sits between the PCI bus and PCI device drivers (such as mine). It manages some IBM-specific PCI hotplug functionality and should be "transparent" to PCI device drivers. My device driver is not aware of this filter and continues to work as usual. However, after I reload my driver (Disable+Enable in the Device Manager), it would no longer operate normally, getting null MDLs in its DispatchRead routine. As you know, there can be two reasons for getting null MDLs: 1. Not having DO_DIRECT_IO in your DEVICE_OBJECT's Flags. (Obviously I always had this flag set.) 2. Passing a zero-sized buffer to ReadFile. (I don't do this.) Inspecting my device with Walter Oney's DevView revealed the reason: while my FDO has DO_DIRECT_IO in its flags, IBM's FiDO does not -- and IBM's FiDO has relocated from being between my FDO and the PCI bus, to be *on top* of my FDO! What can cause this FiDO (whose source code I obviously don't have) to be inserted at the right place on system startup, but at the wrong place on subsequent reload of my driver? Tag: about autocheck Tag: 70893
  - 24
    - Can you get the USB frame number without writing a driver? I am trying to synchronize the PC time to USB frame number for a device I am developing. I am using Cypress's CYUSB device driver. It does not provide a way to get the current USB frame number. Is there any way to get the USB frame number without writing a driver? Tag: about autocheck Tag: 70892
  - 25
    - Error parity UART Hi Development tool: visual c++ 2005 express Problem (s): 1) I'm sending 8 bits + parity + 1 stop bit (9600 bit/s) using the UART, how can I read the byte, even if there is a problem with the parity, because the byte with parity error is replace by the byte defined in ParityReplace! 2) I'm using timers with the UART, but sometimes, I donÂ´t read the bytes one by one, using the events. How can I put the events of the UART prior to the timers, so that I can't fail one read. If some one can help, i appreciate very much. Best Regards Vitor Amorim Tag: about autocheck Tag: 70887
- Next
  - 1
    - Extra Processing on CompletionRoutine Hi everyone I'm writing a filter driver for a device, which I install a completion routine so that I could do extra processing after the IRP has been processed by the lower driver. AFAIK, I've got two options for my CompletionRoutine 1. Do whatever I need to do inside the CompletionRoutine, then return with STATUS_SUCCESS. 2. Queue a work item, which will later call IoCompleteReturn, and then return STATUS_MORE_PROCESSING_REQUIRED. I've tried successfully with method 1 (which is simpler). However, I'm not sure if that's safe, since sometime my processing could take up 1-2 seconds to do. Could anyone tell in which case should i use the 1st method, and which case should I use the 2nd one? And the IRP being processed inside my CompletionRoutine will never be canceled by anyone, right? Another question, assuming that the lower driver completes the IRPs in its work queue (PASSIVE_LEVEL) most of the time, am I safe to say that my CompletionRoutine would be called in PASSIVE_LEVEL most of the time too, or is it system dependent? Thanks for your help Hai. Tag: about autocheck Tag: 70886
  - 2
    - IoQueueWorkItem accessing flag or return value? Hi folks, I am writing a custom kernel device driver that calls the RtlCheckRegistryKey to check the registry for a value on every keystroke. Basically I created a call-back function thread using the IoQueueWorkItem to get the RtlCheckRegistryKey to be ran at PASSIVE_LEVEL. I pass down a struct to the IoQueueWorkItem routine (IN PDEVICE_OBJECT DeviceObject, IN OUT strQueuedWorkItem *Context) That contains pIOWorkItem and certain flags etc. When the RtlCheckRegistryKey value is called I need to set a flag in the struct to say registryChecked. My problem is that I cant seem to get access to this structure and the set flag after it has been passed to the call-back routine even though I am passing the struct by pointer? Can anyone help me alleviate the problem or know of another way to access a global driver flag that I can check in the calling function to the IoQueueWorkItem Thanks in advance for the help, Cheers, Con Tag: about autocheck Tag: 70883
  - 3
    - Safe to remove hardware icon Hi, My question is : How to get rid of the icon in system tray? I writed a driver for our usb device, and every when the device was attached to the PC, the icon would appear in system tray. How to hide the icon? Should I add something in my driver or in the inf file? Advance thanks! Tag: about autocheck Tag: 70877
  - 4
    - IOCTL_STORAGE_RESET_DEVICE = error "incorrect function" The device is type CDROM, is not on a scsi bus and not a scsi device. This complies with the ioctl usage per MS. I code in pascal but the C version of devio I'm using would be I think ... DeviceIoControl(handle, IOCTL_STORAGE_RESET_DEVICE, NULL, 0, NULL, 0, &returned, NULL); ... devio returns an "incorrect function" error. The parameters are per MS as far as I can tell. I can substitute IOCTL_STORAGE_EJECT_MEDIA and it works fine. Thanks for any ideas, Bill Mudd Tag: about autocheck Tag: 70867
  - 5
    - snetcfg crashing...please help I'm trying to revive about 4 year old VPN Client written as a shim and a virtual adaptor. Installation program does something like this: 1) snetcfg.exe -l .\shimmer.inf -c s -i no_shimmer followed by 2) install.exe netvpntp.inf *no_vpntp Those two programs were checked-into code base and compiled as part of the build. I don't know if they were customized or not. Now, when I try to run those commands from command line, snetcfg.exe crashes and install.exe fails. Here are the respective stack trace and failure msgs. snetcfg.exe crash: msvcrt!wcscpy+0x8 netcfgx!HrCiInstallFilterDevice+0x192 netcfgx!CFilterDevices::InstallFilterDevicesIfNeeded+0x184 netcfgx!CModifyContext::ApplyChanges+0x5cb netcfgx!CModifyContext::HrApplyIfOkOrCancel+0x24 netcfgx!CImplINetCfg::Apply+0x2f snetcfg!HrInstallNetComponent+0x12f snetcfg!wmain+0x14d snetcfg!wmainCRTStartup+0x12b KERNEL32!BaseProcessStart+0x3d install.exe output: .\install.exe netvpntp.inf *no_vpntp Search for Device ID: [*no_vpntp] Compare device ID: [ACPI\ACPI0003] Compare device ID: [*ACPI0003] Compare device ID: [ACPI\PNP0000] Compare device ID: [*PNP0000] ....... ....... Compare device ID: [USB\ROOT_HUB] Compare device ID: [USB\OTHER_ID] EnumDeviceInfo FAILURE: No more data is available. GetINFClass FAILURE: The system cannot find the file specified. Any help on why snetcfg is crashing would be greatly appreciated. Also, is the failure in install.exe because of snetcfg crash or is there some other reason ? I will try to cut and paste .inf files in the next msgs. thank you very much Ramesh Tag: about autocheck Tag: 70863
  - 6
    - Disconnect network from Explorer... Hi, I need to intercept the "Disconnect Network Drive" It close the NetRoot and I need my redirector to close the session assigned to that drive... Where have i to looking for!? Thanks Ale Tag: about autocheck Tag: 70861
  - 7
    - IFS Driver losck Excel file Hi, I've a FS Driver working as MiniRDR... It works fine with all files type but it fails on Excel file. Opening a remote "Excel 2003 only" file it always reports that file has been modified by other user and prompt me to save with a different name/overwrite... It only happens on XP + Office 2003 !!! I know it's not enought but maybe someone might help... I'll start with a remote debug on driver as soon as I wont got any suggest... Thanks Ale Tag: about autocheck Tag: 70858
  - 8
    - USB drivers oddity on Win2K This is strange, and I'm wondering if it's something I've done. We have a USB composite device that has two endpoints, one of which is used as a debug channel and one which is a mass storage interface. The mass storage interface works just fine.. however.. When our system (Windows 2000) crashes, it sometimes forgets that it needs the "USB Composite Device" driver and we have to manually reinstall it! This is somewhat tedious and painful, as you might expect, since it looks like that driver has to be reinstalled for each port that we're putting one of these devices on (ugh). I've looked over our debug interface driver code and I can't find anything that would cause Win2K to decide it doesn't need the composite interface any longer. Has anyone seen anything like this before? Does WinXP handle composite devices better? Are there any known issues with composite USB devices under Win2K? All help appreciated, I'm running out of hair to pull out! Tag: about autocheck Tag: 70857
  - 9
    - UNIDRV Banding Line Count error? Hello, I've got a rendering plugin with ImageProcessing doing RGB24 to CMYK custom halftoning. (That is, DevNumPlanes = 4, DevBPP = 1, DrvBPP= 24.) The conversion itself works fine, *except*: when UNIDRV is doing banding, if the last band is shorter than the previous bands, the difference (in lines) is added to the print as garbage raster data. E.G: for a 3300 line Letter page: ImageProcessing reports 4 x bands of 664 lines, then one of 644. What is printed is the 3300 lines expected, plus (664 - 644 =)20 lines of garbage. For a 3750 line page: ImageProcessing reports 4 x bands of 752 lines, then one of 742. The expected 3750 lines print, plus 10 lines (752 - 742) of garbage. It *looks* like when Unidrv splits the page into bands, it's not tracking the actual count when passing the bands to Output. Comments? Suggestions?? I'd rather not do the compression and output to spooler myself, if there's a known fix for this issue. Thanks! -- Joe C. -- J.C. Tag: about autocheck Tag: 70856
  - 10
    - How to bind the adaptor to ndis. Ok ,I have a problem binding the adapter to ndis driver. Please somebody can look to my code and tell me whats wrong.Thanks !!! It is very important to me to know how to send raw packets. I have c++6. /////////////////////////////////////////////////////////////////// // test1.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include <windows.h> #include <winioctl.h> #include <stdio.h> int main(int argc, char* argv[]) { int copying=0,lol=0,lol2=999,bufsize,pointerull1=0,pointerull0=0,lungimeaaa=0; char output[1000]="",filtredoutput[1000]="",adapterid[524]=""; struct NDISPROT_QUERY_BINDING { unsigned long BindingIndex; // 0-based binding number unsigned long DeviceNameOffset; unsigned long DeviceNameLength; // in bytes unsigned long DeviceDescrOffset; unsigned long DeviceDescrLength; // in bytes }; struct NDISPROT_QUERY_BINDING ndisprot; ndisprot.BindingIndex=0; //Adaptor number bufsize =sizeof(ndisprot); HANDLE hDevice; // handle to the adapter to be examined BOOL validAdapter,bindadadapter; //handle DWORD bytesread,uiBytesReturned; // number of bytes for output buffer //Opening driver with create file hDevice = CreateFile("\\\\.\\\\NdisProt"/* drive to open*/,GENERIC_WRITE|GENERIC_READ, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); validAdapter = DeviceIoControl(hDevice/* device to be queried*/,0x12C80C/* operation to perform "Enumerate Adapters"*/,(void*) &ndisprot/*input buffer*/,bufsize/*input buffer size*/,output/*output buffer*/,lol2/*output buffer size*/,&bytesread/*number of bytes returned*/,NULL); /////////////////////////////////////////////////////////// if (!validAdapter) printf("Error\n"); do{ if(strncmp(output+copying,"\x00",1)) strncat(filtredoutput,output+copying,1); copying++; }while(copying<bytesread);//getting adapter id from iocontroldevice data do{ pointerull0++; }while(strncmp(filtredoutput+pointerull0,"\\",1)!=NULL); do{ pointerull1++; }while(strncmp(filtredoutput+pointerull1,"}",1)!=NULL); strncpy(adapterid,filtredoutput+pointerull0,pointerull1-pointerull0+1); /////////////////////////////////////////////////////////// lungimeaaa=strlen(adapterid); bindadadapter=DeviceIoControl(hDevice/* device to be binded*/,0x12C800/*operation to perform "Open Device"*/,(void*) &adapterid,lungimeaaa,NULL,0,&uiBytesReturned,0); if (!bindadadapter) printf("Error not binded %d\n",uiBytesReturned); printf("filtredoutput=%s\nsize=%d\nbytesread=%d\n",filtredoutput,lol2,bytesread); printf("Adapter ID =%s\n",adapterid); CloseHandle(hDevice); printf("Hello World!\n"); return 0; } /////////////////////////////////EOF/////////////////////////////// Tag: about autocheck Tag: 70852
  - 11
    - Unload what SetupDiCallClassInstaller loaded After disabling/enabling a device with a call to SetupDiCallClassInstaller, my program's memory usage jumps from 900Kb to 9.5 MB (WinXP, according to TaskManager and ProcessXP). Msdn explains: SetupDiCallClassInstaller calls the class installer and any co-installers that are registered for a device or a device setup class. <b>This function loads the installers if they are not yet loaded.</b> The function also calls the default handler for the DIF request, if there is a default handler and if the installers return a status indicating that the default handler should be called. How do I UNLOAD the class installer and co-installers, that are eating my memory? Tag: about autocheck Tag: 70851
  - 12
    - WHQL Failure during user defined functions I am running WHQL test and I am failing on test 2.2.3. What is happening is that it runs through the Windows functions (1-2048), but once it comes in to test the user defined functions it fails out the test. The nStatus is equal to 0. Do I need to do some kind of check that if it is equal to 0, return STATUS_INVALID_PARAMETER? Thanks for you help. ck Tag: about autocheck Tag: 70847
  - 13
    - user mode printer drivers We had an existing kernel mode printer driver that we converted to user mode following documentation in the driver kit. The new user mode driver installs and runs correctly on Windows XP and Server 2003. Attempting to install the driver on the Vista beta fails with the following error message: "The driver that you are trying to install is not compatible with Windows Server 2003 family. Please contact the manufacturer for an updated version." Any ideas? Thanks. Tag: about autocheck Tag: 70845
  - 14
    - Miniport's IOCTL interface performance issue. Hi all, I have written a NDIS 5.0 virtual miniport driver that send and receive packets from a usermode application via Direct IOCTL interface. All seems to be working well, except that the miniport drops packets if it receives more that about 3000/second. I have implemented a receive buffer in the miniport and it is clear that the miniport receive all the packets from the above protocols and queue them accordingly but the IOCTL interface seems to be to slow to handle all of the packets, so the queue overflows. Is there any way to improve the IOCTL interface's performance? Thanks, Amos Tag: about autocheck Tag: 70836
  - 15
    - Driver design thoughts Yes, I'm a driver newbie... We have an open source kernel driver that needs accurate and high-resolution timestamps in order to stamp communication packets. Then, we have an external reference clock producing these timestamps. The problem is to forward these timestamps to the driver. My plan is to write a new driver that interfaces the clock (with serial based protocol) and exports a method for the existing driver in order to request timestamps when needed. This way the existing driver would stay as intact as possible. Does this sound reasonable to you? As far as I understand, my new driver would not be a real "device driver" representing any device, but a kernel-mode helper library. So, what type of driver it should be? Any other thoughts of architectural design? Thanks Ali Tag: about autocheck Tag: 70832
  - 16
    - how to map drive letter (eg. H:) to usb (vid, pid)? the problem I encountered : what I know is logical drive letter(assume this drive based on usb) what I want is the serial(vid, pid) of the drive's underlying usb device Can anyone help ? Thanks a lot! Tag: about autocheck Tag: 70831
  - 17
    - how to install a LM i want to write a inf file.so that i can install a printer with a LM. i write it as follows: LanguageMonitor=%LM% [DestinationDirs] //?? DefaultDestDir=66000 [SourceDisksNames.x86]//?? 1 = %disk1%,,, [SourceDisksNames.ia64]//?? 1 = %disk1%,,, [SourceDisksFiles]//?? PJLMON.Dll=1 [Strings] LM=="Language Monitor,PJLMON.Dll" However,the second time i installed the printer,the pjlmon.dll is not updated. I have to stop the spoolsv.exe and then delete the dll manually. Now I want to install the dll item for the printer from the curren directory to windows(WINNT)\system32 directory.what can i do? thank you - hy ----------------------------------------------------------------------- Posted via http://www.codecomments.co ----------------------------------------------------------------------- Tag: about autocheck Tag: 70828
  - 18
    - error on CreateDialog thanks for all your hints. In fact,I have an app that implements a dll. the dialog belonging to a class is showed in the win32 ap sucessfully. that is ok! Surely I can create a dialog successfully without register a class. but it seems that is necessary when i want to add a icon for th dialog. it still failed! the differences between my test app and my ddk are: (1) ddk uses unicode, (2) the instance of ddk is the dllmain 1st input parameter,while the instance of my test program is winmain 1st input parameter, BTW,i dont want to use MFC or any class,only api funcs are used. Thanks - hy ----------------------------------------------------------------------- Posted via http://www.codecomments.co ----------------------------------------------------------------------- Tag: about autocheck Tag: 70827
  - 19
    - Switch off Caps Lock from kernel mode driver Hi, Is there any way in kernel mode driver to check the status of capslock key and turn off if it is ON? I thought of accessing Bios address space 40h:17h for this purpose. But I don't know how to do that in Kernel mode. Please help on how to access 40h:17h address from kernel mode driver. Any other way to do the thing also welcome. I am a newbie. Thanks, Krishna Tag: about autocheck Tag: 70824
  - 20
    - Installing Unsigned Drivers in Vista Hi, It seems that Vista Beta 2 (Build 5219) no longer allow unsigned driver set to be installed by default. Anyone knows any method to install an unsigned driver set at this stage if I wish to test for compatability? Thanks Thanks. Kee Seng Tag: about autocheck Tag: 70823
  - 21
    - Thread Safe Is the NdisAllocatePacket and NdisAllocateBuffer function thread safe? Best Regards, -Niranjan Tag: about autocheck Tag: 70822
  - 22
    - PCL to EMF How can i convert PCL to EMF, is there a way so that i can program this. Similar to this I am keen to know if I could convert Postscript(PS) to EMF with out depending on Ghostscript. Basically i would like to render PCL or PS files in my VC++ programs and try to extract the text from it. I am not bothered about the graphics with in these files and only bothered about the text with in. Somebody please help me with this. Thanks... Tag: about autocheck Tag: 70813
  - 23
    - PCL to EMF conversion How can i convert PCL to EMF, is there a way so that i can program this. Similar to this I am keen to know if I could convert Postscript(PS) to EMF with out depending on Ghostscript. Basically i would like to render PCL or PS files in my VC++ programs and try to extract the text from it. I am not bothered about the graphics with in these files and only bothered about the text with in. Somebody please help me with this. Thanks... Tag: about autocheck Tag: 70812
  - 24
    - scsi rescan caching Hi, Regarding the Microsoft own rescan.exe, as found at: http://support.microsoft.com/default.aspx?scid=kb;en-us;308669 I have found this very utility and particulary the CM_Reenumerate_DevNode() call, which is used within to do actual bus rescan, are behaving as if there is some caching involved. Test as follows: 1. run rescan over and over, from command line, as fast as you can (or write a shell script to do it) 2. Observe how long does it take, each time, for rescan to finish You will see the very 1st rescan does take some time to finish while all subsequent are returning IMMEDIATELLY. Then again, after 30 or some iterations, rescan AGAIN takes some time, as if it actually doing something. I made no device additions in that time. Machine was idle. Test is reproducible. Note I did above test with both NORMAL and CM_REENUMERATE_SYNCHRONOUS setting for CM_Reenumerate_DevNode(), same behaviour. Any thoughts on this? Thanks, Robert Tag: about autocheck Tag: 70808
  - 25
    - A question about EngCopyBits When I implemented the DrvCopyBits function in the mirror driver, I just punted to EngCopyBits call, but unfortunately, I got a blue screen. Is there anything else that I should do before punting it back to EngCopyBits? Could any guru please give me some suggestions? Thanks, Tag: about autocheck Tag: 70806

Hi!

I have a filter device, it is used to filter file system. when use it, on
some OS, such as Windows XP Home, will introduce to autocheck while booting
?

can you tell me the reason and how to avoid it ?

thanks!

Xiaorun

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