Can we write kernel mode dll or application ?

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  - 1
    - _inp( ) and _outp( ) question .. Hi Can't we use _inp( ) and _outp( ) in Windows XP, should we use WRITE_REGISTER_UCHAR and READ_REGISTER_UCHAR and WRITE_PORT_UCHAR and READ_PORT_UCHAR in kernel mode ? How can I see the port of a device from Windows Device Manager ? I can see IO range of some devices, what's the deffirence between IO range and IO port ? Should I get IO port and register info by some function or IO control , or all of them should read from documents ? Thank for your teaching . Tag: Can we write kernel mode dll or application ? Tag: 107476
  - 2
    - Does Windows has built-in device driver ? Hi Does Microsoft Windows has USB device driver that we can define USB interfaces and endpoints to let our PC become an USB device ? Can we add an USB device port , how can I do that request ? Thank for your teaching. Tag: Can we write kernel mode dll or application ? Tag: 107473
  - 3
    - Allocate Continuous memory with specific boundary for DMA Dear all: In my case, i need a 64k boundary physical memory for DMA transfer. But AllocateCommonBuffer dont have a parameter to specify the boundary. How to achieve this requirement? (Use MmAllocateContiguousMemorySpecifyCache?) -- Sincerely Yours, Tag: Can we write kernel mode dll or application ? Tag: 107468
  - 4
    - Getting printer specific information stored in GPD file Hi all, Basically i have a custom UI and renderer plug-in for a printer driver using unidrv.dll. What i need to know in the plug-in are diffrent options set in the GPD file without reading(parsing) the GPD file. The only supported methods I found are in IPrintCoreHelper::GetOption which can give a feature - option return but not the particulars of that option. And the second method is IPrintCoreUI2::DrvGetDriverSetting which also given a feature name returns the selected option. The other close third is IPrintOemDriverUni::DrvGetGPDData which can only return the value of *OEMCustomData field. Is there a way to get other field from the GPD ? RM Tag: Can we write kernel mode dll or application ? Tag: 107467
  - 5
    - viewsonic driver n00b question I need some help - I had to reinstall Win XP on my system and all went relatively well except for the fact that I am having a driver issue with my Viewsonic vx922 lcd monitor. I get the XP boot screen and then the screen goes dark - I swapped in my trusty crt and I see everything which tells me the issue is tied to the drivers. I went to viewsonic's site and updated drivers to no avail. Any thoughts on this since I want to go back to my lcd monitor. TIA! Tag: Can we write kernel mode dll or application ? Tag: 107466
  - 6
    - you watch hot boobs hot video hot picture you watch hot boobs hot video hot picture ********************************************* http://anushkahollywood.blogspot.com/ ********************************************** Tag: Can we write kernel mode dll or application ? Tag: 107465
  - 7
    - How can know the Serial.sys Driver? My Driver is Boot start driver, Start set 0 in Service Registry. My Driver is Serial Driver. when was load serial.sys Driver? how load time serial.sys ? thank you for reading best ^^ Tag: Can we write kernel mode dll or application ? Tag: 107463
  - 8
    - DirectInput, USB HID filters, and EvtInternalDeviceControl I'm trying to write a filter for a USB HID device that will essentially override the device's HID Descriptors with a custom version, but otherwise function as a normal HID device. I've gotten the driver to compile, install, and execute but the EvtInternalDeviceControl function is never called. I've checked several of the KMDF samples and it appears I'm registering the function correctly. My EvtDeviceAdd and EvtDeviceD0Entry functions run, but nothing after. Further, will I need to do anything special in order to have DirectInput correctly recognize the device with the corrected descriptor? I'm using the hidkmdf HID minidriver KMDF sample as the function driver with this as my LowerFilter. I can post additional code and log data as needed. Below is the pertinent piece of my DeviceAdd function: WDF_IO_QUEUE_CONFIG queueConfig; WDFDEVICE hDevice; /* SNIP */ status = WdfDeviceCreate(&DeviceInit, &attributes, &hDevice); if (!NT_SUCCESS(status)) { DbgPrint("SIXCD: WdfDeviceCreate failed with status code 0x%x \n", status); return status; } WDF_IO_QUEUE_CONFIG_INIT_DEFAULT_QUEUE(&queueConfig, WdfIoQueueDispatchParallel); queueConfig.EvtIoInternalDeviceControl = SixcdEvtInternalDeviceControl; status = WdfIoQueueCreate(hDevice, &queueConfig, WDF_NO_OBJECT_ATTRIBUTES, WDF_NO_HANDLE ); if (!NT_SUCCESS (status)) { DbgPrint("SIXCD: WdfIoQueueCreate failed 0x%x\n", status); return status; } Tag: Can we write kernel mode dll or application ? Tag: 107462
  - 9
    - DPINST - ReInstal l- scan for hardware change Hi, I am using DPINST for install & removal for the driver. To update a driver first i am removing the driver using dpinst /U inf /D and for reinstllation I have to do the hardware scan using devcon utility before installing again, otherwise, DPINST wont be able to find the device, it returns that no devices are found. Because for XP OS, with out hardware scan, installation wont be succesful, it is not the case for vista. Problem: When i do the hardware scan with devcon, Add hardware wizard comes up, i want to supress that. Question: 1) Is there any way to supress this wizard here? 2) using DPINST, before installing, is there any way to scan the device with out any pop-up coming? Thanks, Kota Tag: Can we write kernel mode dll or application ? Tag: 107461
  - 10
    - question on class guid I have filter driver which sits below file system driver. My LoadOrderGroup is "filter". These many days I didnot use inf file to install the driver. I was just adding entry in the registry and copying the driver files to system directry for my installation application. Now I am planning to install it thru inf file. Is class and classguid entry in the inf file mandatory. wdk doc says that if the LoadOrderGroup is filter the class is not specified. But when I run the chkinf tool without including class and classguid entry I get errorrs. Is it ok if I dont have class entry. My driver is a mirroring driver. Thanks in advance The wdk doc says that Tag: Can we write kernel mode dll or application ? Tag: 107460
  - 11
    - Must USB Iso transfer use selectInterface ? 1. If there is only 1 interface and 1 alternative setting in descripter of the device, must select interface be sent ? Since for bulk, it is not necessary, and the pipe can be directly used after get pipe handle from set configure. 2. If select interface have to be sent. Must there be 2 alternative settings ? Tag: Can we write kernel mode dll or application ? Tag: 107459
  - 12
    - XcvData broken on Vista I have a print driver/port monitor pair that use XcvData and XcvDataPort to communicate. When the printer is being used as a network printer and connected to by a client, the driver on the client calls XcvData with a custom string in pszDataName. My XcvDataPort function in the port monitor recognizes this string and responds with the requested data. It's very simple, fully supported according to the documentation, and works flawlessly between XP boxes. But throw Vista into the mix and it's completely broken. If the server is XP and the client is Vista, XcvData returns error 2 (file not found). The port monitor on the server is *not* called. Conversely, if the server is Vista and the client is XP, XcvData returns error 122 (insufficient buffer). And again, the port monitor on the server is not called. However, despite the fact that XcvDataPort was never called, XcvData gives me back error 2 as XcvDataPort's return code. The actual printing works flawlessly in both cases, so I know it's not a fundamental permissions or network issue. It's purely a problem with XcvData. I strongly suspect it's a security issue since most things Vista are, but even if I turn off the firewall, UAC, print as admin, set permissions on the printer to full control for everyone, etc, I get the same results. It's as if Vista is simply refusing to allow XcvData to communicate with the port monitor. Any clues? Simplified code follows to give you an idea.... On the client I do this: // open the port on the print server HANDLE hServer; if (!OpenPrinterW(L"MyServer\\,XcvPort DIRPS:", &hServer, NULL)) return false; // request the data char *pBuff = new char[dataSize]; if (!XcvData(hServer, L"GetConfigData", 0, 0, (PBYTE)pBuff, dataSize, &dataSize, &status) || status != ERROR_SUCCESS) return false; On the server, the port monitor does this: DWORD WINAPI XcvDataPort(HANDLE hXcv, LPCWSTR pszDataName, PBYTE pInputData, DWORD cbInputData, PBYTE pOutputData, DWORD cbOutputData, PDWORD pcbOutputNeeded) { if (pszDataName && !wcscmp(pszDataName, L"GetConfigData")) { *pcbOutputNeeded = dataSize; if (cbOutputData < dataSize) return ERROR_INSUFFICIENT_BUFFER; *pOutputData = myData; return ERROR_SUCCESS; } return ERROR_SUCCESS; } Tag: Can we write kernel mode dll or application ? Tag: 107448
  - 13
    - Microsoft RNDIS driver failed to handle multi config descriptors Does Microsoft Window (XP Host) RNDIS driver support multiple configuration descriptors? We changed the WinCE RNDIS driver code to provide two configuration descriptors to the host. When we pass the 2 configuration descriptors per the USB specification the host(XP) accepts them by returning a "SetConfiguration" message with a valid configurationValue, and then subsequently dies with an error 10. Tag: Can we write kernel mode dll or application ? Tag: 107446
  - 14
    - Troubleshooting Sleep Issues Please, Does anyone know how to determine what application, service, or driver is resetting the idle timer on an XP system, thus causing the machine to never enter a sleep state on it's own? Any Ideas would be great. Thx a bunch. -- Thx. Y_not Tag: Can we write kernel mode dll or application ? Tag: 107442
  - 15
    - How do get to RS232 COM Port List? My Driver Code is Boot start RS232 Serial Driver. [Window NT Driver on Windows XP] I don't know. How can get actuality COM port list? If actuality my comport have COM1 and COM3, I must open only COM1 and COM3. but My code is try to open the COM1 to COMX. because, this method is occur a Blue Screen, Sometimes. How can get actuality COM port list in NT Style Driver (base Windows XP) ? Thank you for reading~ best regards Tag: Can we write kernel mode dll or application ? Tag: 107438
  - 16
    - Echo sample driver is not loaded windows XP Hello All, The Echo sample driver is not loaded in the windows XP system. i am using the WDK 6000 driver development kit. the Kmdf library version is 1.5. Regards Sulabh Tag: Can we write kernel mode dll or application ? Tag: 107435
  - 17
    - KMDF sample driver not loaded in windows XP - WDK 600 Hello All, Hello All, I compiled the echo sample driver which is avilable in the WDK 6000 driver delopment kit. this is a KMDF based driver, i give proper libray version which is mentioned the echo.inf file. I tryied to install this driver into the windows XP professioanl . The Windows XP operating system is not loaded this driver ,it is returning the error code 37. Note: I am not able to load any kmdf sample driver Windows XP professional. Kindly help me as soon as possible it is very urgent. Thanks in advance. Regards Sulabh Tag: Can we write kernel mode dll or application ? Tag: 107434
  - 18
    - [KMDF Echo Sample Driver not loaded in Windows XP] Hello All, I compiled the echo sample driver which is avilable in the WDK 6000 driver delopment kit. this is a KMDF based driver, i give proper libray version which is mentioned the echo.inf file. I tryied to install this driver into the windows XP professioanl . The Windows XP operating system is not loaded this driver ,it is returning the error code 37. Note: I am not able to load any kmdf sample driver Windows XP professional. Kindly help me as soon as possible it is very urgent. Thanks in advance. Regards Sulabh Tag: Can we write kernel mode dll or application ? Tag: 107433
  - 19
    - Checked build driver with free build OS.... Hi, I know, to help debugging, its required to have the windows checked build and with checked build driver (driver under development). But what happens if checked build driver is loaded and used with free build os ? (XP SP2). As far as I know, the checked build driver 1. Does not have optimization enabled 2. Lots of DbgPrint 3. The size of the binary is huge (because of symbols and etc). 3. The driver will be slow. Are there anything more to add to the above list ? If I manage to remove all the prints and if the driver is meeting the performance criterion, is it advisable to deploy the checked build driver with free build OS ? Regards Esha Tag: Can we write kernel mode dll or application ? Tag: 107430
  - 20
    - NDIS encryption hi, i try to crypt the buffer but it fails with, irq_less_or_equal OR with bad_pool_handel thanks for some ideas or a little help here is the code: NdisAllocatePacket(&Status, &MyPacket, pAdapt->SendPacketPoolHandle); if (Status == NDIS_STATUS_SUCCESS) { NDIS_PHYSICAL_ADDRESS HighestAcceptableAddress; ULONG ulBfrCnt, ulTotPktLen, ulCurrBfr, ulAmtToMove; PUCHAR pCurrBfr; ULONG TotalPacketLength; PSEND_RSVD SendRsvd; PVOID pBuf; PNDIS_BUFFER pNdisBfr; HighestAcceptableAddress.LowPart = -1; HighestAcceptableAddress.HighPart = -1; NdisQueryPacket(Packet, // Get information from packet descriptor. NULL, NULL, &pNdisBfr, // Output variable for address of first buffer descriptor. &ulTotPktLen // Output variable for number of bytes in packet payload. ); Status = NdisAllocateMemory(&pBuf,ulTotPktLen,0,HighestAcceptableAddress); GetPktPayload(Packet, // Copy payload pBuf, // to area. szPayloadCopy, // Amount of space in area. &ulOrigPayload // Return number of bytes in packet. ); NdisAllocateBuffer( &Status, &newbuffer, pAdapt->SendPacketPoolHandle, pBuf, ulOrigPayload ); Encrypt(pBuf,ulOrigPayload); if(Status == NDIS_STATUS_FAILURE) { NdisFreeMemory(pBuf, ulOrigPayload, //Maybe add a checksum length 0); Status = NDIS_STATUS_FAILURE; DBGPRINT(("exit NDIS_STATUS_FAILURE 9\n")); break; } SendRsvd = (PSEND_RSVD)(MyPacket->ProtocolReserved); SendRsvd->OriginalPkt = Packet; NdisGetPacketFlags(MyPacket) = NdisGetPacketFlags(Packet); NdisChainBufferAtFront(MyPacket,newbuffer); ======================================= void Encrypt(PVOID pData,ULONG uDataLen) { NDIS_PHYSICAL_ADDRESS HighestAcceptableAddress; ULONG i; int b; PVOID tmp; PVOID cur; NDIS_STATUS Status; char * tmep; HighestAcceptableAddress.LowPart = -1; HighestAcceptableAddress.HighPart = -1; Status = NdisAllocateMemory(&tmep,uDataLen,0,HighestAcceptableAddress); if (Status != NDIS_STATUS_SUCCESS) { NdisFreeMemory(tmep, uDataLen, //Maybe add a checksum length 0); return; } Reset(); tmep = (char *) ExAllocatePool(NonPagedPool ,uDataLen); for (i = 0 ; i<uDataLen; i ++) { ((unsigned char *)cur) = ((unsigned char *)pData) +i; *(tmep+i) = ((int)cur) ^ 5; } i++; *(tmep+i) = 0; NdisMoveMemory(pData,tmep,uDataLen); NdisFreeMemory(cur, uDataLen, //Maybe add a checksum length 0); } i hope my many questions can help other developers :D Tag: Can we write kernel mode dll or application ? Tag: 107428
  - 21
    - Port Monitor: referencing external libraries in sample code Hi, I am new to Driver development. I am implementing the Port monitor for our printer driver. Basically I am migrating from a previous Port Monitor( visual studio project) which implements the MONITOR structure to the recent MONITOR2 structure using the DDK environment. As can be seen, there is some similarity in the MONITOR2 and MONITOR structure and some of the existing functionality can be reused. So I planned to export the functions required by MONITOR2 from the current port monitor library and use it in the DDK sample port monitor(ddklocalmon). For this I implemented the header file for the existing Port monitor and compiled it as a static library. Added the function names to the .DEF file. I included this library in the TARGETLIBS section of the Sources file in localmon directory. Also added the path to the header file in the INCLUDES section. However when I added a call to the logerror() function in the imported library, I get the following error on linking Linking Executable - objchk_wxp_x86\i386\ddklocalmon.dll errors in directory d:\doccreator\actino\p4root\jaws\niknak\win\localmon d:\doccreator\actino\p4root\jaws\niknak\win\localmon\localmon.obj : error LNK2019: unresolved external symbol _logerror@0 referenced in function _LcmStartDocPort@20 d:\doccreator\actino\p4root\jaws\niknak\win\localmon\objchk_wxp_x86\i386\ddklocalmon.dll : error LNK1120: 1 unresolved externals Questions: 1] Can someone please let me know what could have gone wrong with this implementation.? 2] Is adding a reference to a Visual studio library to the DDK project possible? 3] Have I added the library and header file to the correct sections in the Sources file? Please let me know if you need more explaination. thanks Mangesh Tag: Can we write kernel mode dll or application ? Tag: 107425
  - 22
    - Getting SID of process owner Hi, Getting SID of user account under which a process is running can be easily done by user-mode code via WIN32 APIs: OpenProcess(), OpenProcessToken(), GetTokenInformation(TokenUser). But in device driver, if PID of a process is known, how difficult is it to get owner SID? Thanks, Boris Tag: Can we write kernel mode dll or application ? Tag: 107424
  - 23
    - Errorcode c0000005 ndis passthru sample hi, iam changing the buffer with a original copy of it and always get the error c0000005 does anyone have an idea? i have googled a little bit but didnt find any answers greetz FAULTING_IP: passthru+b7b f7967b7b 833a00 cmp dword ptr [edx],0 EXCEPTION_RECORD: f7a05a48 -- (.exr 0xfffffffff7a05a48) ExceptionAddress: f7967b7b (passthru+0x00000b7b) ExceptionCode: c0000005 (Access violation) ExceptionFlags: 00000000 NumberParameters: 2 Parameter[0]: 00000000 Parameter[1]: 0000007f Attempt to read from address 0000007f Tag: Can we write kernel mode dll or application ? Tag: 107417
  - 24
    - Can more than 3 packets be transfered per microframe in iso? For ISO transfer, we need to send 4 of 1024 per microframe for speed needed. The protocol says that bit12-11 define the number of packets per microframe. And it can only be as many as =92b10 for 3 packets per microframe. However, in USB 2.0 spec Table 5-5 =91High-speed Isochronous Transaction Limits=92, it clearly shows that packets per microframe can be more than 3. (e.g., for 1024 bytes packet, it can be 7 ; for 64bytes packet there can even be 73 packets per microframe). Thanks Tag: Can we write kernel mode dll or application ? Tag: 107416
  - 25
    - RS232 Boot Start Driver My Driver is BootStart Driver. RS232 When Windows Start then Driver load, then try Open COM PORT. for instance,[ just algoritm ] while(1) { handle = CreateFile("COM1"....); if(handle == ERROR) continue; } next work; --- but this algoritm is occur Blue screen, sometimes. I want, first question how can open to COM port at time? (can't open com port at boot started. but my code is try open, always) sencond question How do know enumeration com port? (if exist com2, com3, but my code is try open 1~N. it's bad.. i will com2, com3 open) sorry my English is bad :-) thank you for reading~ best Tag: Can we write kernel mode dll or application ? Tag: 107415
- Next
  - 1
    - Automate a test that has included reboots Suppose we want to add a test to a DTM suite that has one or more reboots. Outside of DTM, the test add's itself back to the registry using the RunOnce key to continue after reboot. When using DTM, what is the correct setup (i.e. does DTM restart the test application following reboot)? Currently, what I'm seeing is that if the test issues a reboot, DTM marks it as a Control-C failure. Thanks... Tag: Can we write kernel mode dll or application ? Tag: 107414
  - 2
    - Driver Installation in Vista using DpInst 2.01 Dear All, I have a package which installs device driver on Vista for CardMan SmartCard reader. Installation is fine if the hardware is pluged-in during installation. The problem occurs, if the package is installed with out the hardware pluged-in. After instalallation when the hardware is pluged-in, New Hardware Found window pops up. Is their a solution for this? Also, Is their a method whein we can exit the installation if hardware is not connected? Kind Regards, Chetan G S Tag: Can we write kernel mode dll or application ? Tag: 107413
  - 3
    - The origin of the popup messege when you plug a USB device? Hi all, I would like to use WinUsb with a Personal Health Care USB class device. What would be the name of the device on the windows pop-up that appears when you plug a new USB device? What is the origin of that device name? A registry entry? The device itself? Thanks, Assaf Tag: Can we write kernel mode dll or application ? Tag: 107404
  - 4
    - Does WinUsb would work with a Personal Health Care device? Hi all, I would like to use WinUsb (instead of writing a custom UWDF driver). My device is of the class "Personal Health Care" (USB class - 0Fh), Will it work with WinUsb? Thanks, Assaf Tag: Can we write kernel mode dll or application ? Tag: 107403
  - 5
    - Regarding "bTemporalCompression" in avshws of DDK Hello, I am developing a PCI capture driver, and I use "avshws" as sample to develp the driver. I can capture AVI with H.264 codec by AMCAP, and the avi file can play well. My problem is as following: I would like to set bTemporalCompression(in KS_DATARANGE_VIDEO) to be TRUE. Then, the captured AVI frames will be not all marked as key frame. I connect capture pin to dump filter. When I trace in avshws, bTemporalCompression is really true. But when I trace into dump filter, it shows bTemporalCompression as FALSE. In addition, in "IntersectHandler" function, the sample code doesn't copy "bTemporalCompression" and "bFixedSizeSamples" into "Data"(PKS_DATAFORMAT_VIDEOINFOHEADER). If I write following code: FormatVideoInfoHeader->DataFormat.SampleSize = 0; Then, I can see "bFixedSizeSamples" in "Dump" filter is updated to FALSE. Therefore, should I copy "bTemporalCompression" into somewhere to make the flag enable? Can somebody kindly help me to solve this problem? My data range defines as following: KS_DATARANGE_VIDEO FormatH264_Capture = { // // KSDATARANGE // { sizeof (KS_DATARANGE_VIDEO), // FormatSize 0, // Flags DMAX_X * DMAX_Y * 2, // SampleSize 0, // Reserved STATICGUIDOF (KSDATAFORMAT_TYPE_VIDEO), // aka. MEDIATYPE_Video 0x34363248, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71, //aka. MEDIASUBTYPE_YUY2, STATICGUIDOF (KSDATAFORMAT_SPECIFIER_VIDEOINFO) // FORMAT_VideoInfo }, FALSE, // BOOL, bFixedSizeSamples (all samples same size?) TRUE, // BOOL, bTemporalCompression (all I frames?) 0, // Reserved (was StreamDescriptionFlags) 0, // Reserved (was MemoryAllocationFlags // (KS_VIDEO_ALLOC_*)) // // _KS_VIDEO_STREAM_CONFIG_CAPS // { STATICGUIDOF( KSDATAFORMAT_SPECIFIER_VIDEOINFO ), // GUID KS_AnalogVideo_None, // AnalogVideoStandard DMAX_X, DMAX_Y, // InputSize, (the inherent size of the incoming signal D_X,D_Y, // MinCroppingSize, smallest rcSrc cropping rect DMAX_X, DMAX_Y, // MaxCroppingSize, largest rcSrc cropping rect allowed 8, // CropGranularityX, granularity of cropping size 1, // CropGranularityY 8, // CropAlignX, alignment of cropping rect 1, // CropAlignY; D_X, D_Y, // MinOutputSize, smallest bitmap stream can produce DMAX_X, DMAX_Y, // MaxOutputSize, largest bitmap stream can produce 8, // OutputGranularityX, granularity of output bitmap size 1, // OutputGranularityY; 0, // StretchTapsX (0 no stretch, 1 pix dup, 2 interp...) 0, // StretchTapsY 0, // ShrinkTapsX 0, // ShrinkTapsY 1428571, // MinFrameInterval, 100 nS units >>7 frames per second 640000000, // MaxFrameInterval, 100 nS units 8 * 2 * 30 * D_X * D_Y, // MinBitsPerSecond; 8 * 2 * 30 * DMAX_X * DMAX_Y, // MaxBitsPerSecond; }, // // KS_VIDEOINFOHEADER (default format) // { 0, 0, D_X, D_Y, // RECT rcSource; 0, 0, 0, 0, // RECT rcTarget; DMAX_X * DMAX_Y * 2 * 30, // DWORD dwBitRate; 0L, // DWORD dwBitErrorRate; 1428571, // REFERENCE_TIME AvgTimePerFrame; sizeof (KS_BITMAPINFOHEADER), // DWORD biSize; DMAX_X, // LONG biWidth; DMAX_Y, // LONG biHeight; 1, // WORD biPlanes; 16, // WORD biBitCount; FOURCC_H264, // DWORD biCompression; DMAX_X * DMAX_Y * 2, // DWORD biSizeImage; 0, // LONG biXPelsPerMeter; 0, // LONG biYPelsPerMeter; 0, // DWORD biClrUsed; 0 // DWORD biClrImportant; } } My IntersectHandler is as following: NTSTATUS CCapturePin:: IntersectHandler ( IN PKSFILTER Filter, IN PIRP Irp, IN PKSP_PIN PinInstance, IN PKSDATARANGE CallerDataRange, IN PKSDATARANGE DescriptorDataRange, IN ULONG BufferSize, OUT PVOID Data OPTIONAL, OUT PULONG DataSize ) { PAGED_CODE(); const GUID VideoInfoSpecifier = {STATICGUIDOF(KSDATAFORMAT_SPECIFIER_VIDEOINFO)}; ASSERT(Filter); ASSERT(Irp); ASSERT(PinInstance); ASSERT(CallerDataRange); ASSERT(DescriptorDataRange); ASSERT(DataSize); ULONG DataFormatSize; // // Specifier FORMAT_VideoInfo for VIDEOINFOHEADER // if (IsEqualGUID(CallerDataRange->Specifier, VideoInfoSpecifier) && CallerDataRange -> FormatSize >= sizeof (KS_DATARANGE_VIDEO)) { PKS_DATARANGE_VIDEO callerDataRange = reinterpret_cast <PKS_DATARANGE_VIDEO> (CallerDataRange); PKS_DATARANGE_VIDEO descriptorDataRange = reinterpret_cast <PKS_DATARANGE_VIDEO> (DescriptorDataRange); PKS_DATAFORMAT_VIDEOINFOHEADER FormatVideoInfoHeader; // // Check that the other fields match // if ((callerDataRange->bFixedSizeSamples != descriptorDataRange->bFixedSizeSamples) || (callerDataRange->bTemporalCompression != descriptorDataRange->bTemporalCompression) || (callerDataRange->StreamDescriptionFlags != descriptorDataRange->StreamDescriptionFlags) || (callerDataRange->MemoryAllocationFlags != descriptorDataRange->MemoryAllocationFlags) || (RtlCompareMemory (&callerDataRange->ConfigCaps, &descriptorDataRange->ConfigCaps, sizeof (KS_VIDEO_STREAM_CONFIG_CAPS)) != sizeof (KS_VIDEO_STREAM_CONFIG_CAPS))) { return STATUS_NO_MATCH; } // // KS_SIZE_VIDEOHEADER() below is relying on bmiHeader.biSize from // the caller's data range. This **MUST** be validated; the // extended bmiHeader size (biSize) must not extend past the end // of the range buffer. Possible arithmetic overflow is also // checked for. // { ULONG VideoHeaderSize = KS_SIZE_VIDEOHEADER ( &callerDataRange->VideoInfoHeader ); ULONG DataRangeSize = FIELD_OFFSET (KS_DATARANGE_VIDEO, VideoInfoHeader) + VideoHeaderSize; // // Check that biSize does not extend past the buffer. The // first two checks are for arithmetic overflow on the // operations to compute the alleged size. (On unsigned // math, a+b < a iff an arithmetic overflow occurred). // if ( VideoHeaderSize < callerDataRange-> VideoInfoHeader.bmiHeader.biSize || DataRangeSize < VideoHeaderSize || DataRangeSize > callerDataRange -> DataRange.FormatSize ) { return STATUS_INVALID_PARAMETER; } } DataFormatSize = sizeof (KSDATAFORMAT) + KS_SIZE_VIDEOHEADER (&callerDataRange->VideoInfoHeader); // // If the passed buffer size is 0, it indicates that this is a size // only query. Return the size of the intersecting data format and // pass back STATUS_BUFFER_OVERFLOW. // if (BufferSize == 0) { *DataSize = DataFormatSize; return STATUS_BUFFER_OVERFLOW; } // // Verify that the provided structure is large enough to // accept the result. // if (BufferSize < DataFormatSize) { return STATUS_BUFFER_TOO_SMALL; } // // Copy over the KSDATAFORMAT, followed by the actual VideoInfoHeader // *DataSize = DataFormatSize; FormatVideoInfoHeader = PKS_DATAFORMAT_VIDEOINFOHEADER( Data ); // // Copy over the KSDATAFORMAT. This is precisely the same as the // KSDATARANGE (it's just the GUIDs, etc... not the format information // following any data format. // RtlCopyMemory ( &FormatVideoInfoHeader->DataFormat, DescriptorDataRange, sizeof (KSDATAFORMAT)); FormatVideoInfoHeader->DataFormat.FormatSize = DataFormatSize; // // Copy over the callers requested VIDEOINFOHEADER // RtlCopyMemory ( &FormatVideoInfoHeader->VideoInfoHeader, &callerDataRange->VideoInfoHeader, KS_SIZE_VIDEOHEADER (&callerDataRange->VideoInfoHeader) ); // // Calculate biSizeImage for this request, and put the result in both // the biSizeImage field of the bmiHeader AND in the SampleSize field // of the DataFormat. // // Note that for compressed sizes, this calculation will probably not // be just width * height * bitdepth // FormatVideoInfoHeader->VideoInfoHeader.bmiHeader.biSizeImage = KS_DIBSIZE (FormatVideoInfoHeader- >VideoInfoHeader.bmiHeader); FormatVideoInfoHeader->DataFormat.SampleSize = 0; // // REVIEW - Perform other validation such as cropping and scaling checks // return STATUS_SUCCESS; } // End of VIDEOINFOHEADER specifier return STATUS_NO_MATCH; } Thanks! Gordon Tag: Can we write kernel mode dll or application ? Tag: 107401
  - 6
    - Frame information of AVStream driver Hello, I am developing a PCI capture driver, and I use "avshws" as sample to develp the driver. I would like to transfer some frame informatiion from "avshws" driver to user mode filter(e.g. dump filter). In "avssamp" sample, there are following codes in "CVideoCapturePin::CaptureFrame: FrameInfo -> ExtendedHeaderSize = sizeof (KS_FRAME_INFO); FrameInfo -> PictureNumber = (LONGLONG)m_FrameNumber; FrameInfo -> DropCount = (LONGLONG)m_DroppedFrames; Could I get "FrameInfo -> PictureNumber" in user mode filter? Further more, could I get whole "FrameInfo" structure in user mode filter? By the way, if I need to transfer user defined information, how should I do? Could I define my FrameInfo structure, and let user mode filter get the structure? Thanks! Gordon Tag: Can we write kernel mode dll or application ? Tag: 107400
  - 7
    - DevCon to install passthru sample? hi, is there a way to install the passthru sample with devcon or is there any whay to get the error codes (i didnt find the sources of devcon) when i try to install with "devcon -r install c:\test\netsf_m.inf ms_passthru" i always get an "devcon failed", is there no way to get some error informations y it cant be installed? if i look on the hwids list i see the passthru sample installed, and i can uninstall it thx for any help or some informations Tag: Can we write kernel mode dll or application ? Tag: 107396
  - 8
    - Is is possible to load audio device with CreateFile() function in Hi~ I am going to check SPDIF Line-out endpoint. I used in winddk. (=93C:\WinDDK\6001.18001\src\audio\ac97=94) That example is a sample of window control panel. I changed into application level. // BOOL FindSupportingSPDIFOutAudioDevice (PSP_PROPSHEETPAGE_REQUEST pspRequest, PSP_DEVINFO_DATA DeviceInfoData) { TCHAR szServiceName[128]; // // Prepare the pspRequest structure... // pspRequest->cbSize =3D sizeof (SP_PROPSHEETPAGE_REQUEST); pspRequest->DeviceInfoData =3D DeviceInfoData; pspRequest->PageRequested =3D SPPSR_ENUM_ADV_DEVICE_PROPERTIES; // ...and the DeviceInfoData structure. DeviceInfoData->cbSize =3D sizeof (SP_DEVINFO_DATA); // Create a list of devices with Topology interface. pspRequest->DeviceInfoSet =3D SetupDiGetClassDevs (&KSCATEGORY_TOPOLOGY, NULL, NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); // None found? if (pspRequest->DeviceInfoSet =3D=3D INVALID_HANDLE_VALUE) { dbgError (TEXT("Test: SetupDiGetClassDevs: ")); return FALSE; } // // Go through the list of all devices found. // int nIndex =3D 0; while (SetupDiEnumDeviceInfo (pspRequest->DeviceInfoSet, nIndex, DeviceInfoData)) { // // Get the service name for that device. // if (!SetupDiGetDeviceRegistryProperty (pspRequest- >DeviceInfoSet, DeviceInfoData, SPDRP_SERVICE, NULL, (PBYTE)szServiceName, sizeof (szServiceName), NULL)) { dbgError (TEXT("Test: SetupDiGetDeviceRegistryProperty: ")); SetupDiDestroyDeviceInfoList (pspRequest- >DeviceInfoSet); return FALSE; } DWORD lcid =3D MAKELCID(MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), SORT_DEFAULT); TRACE(_T("servicename : %s\n"), szServiceName); // STHDA ctaud2k //STHDA ; sigmatel //ctaud2k : x-fi if (CompareString (lcid, NORM_IGNORECASE, szServiceName, -1, TEXT("ctaud2k"), -1) =3D=3D CSTR_EQUAL) // I have =93SB X-Fi Aduio=94 sound card with SPDIF-out. It called =93ctaud2k=94 service name. { // // We found it! The information is already stored, just return. // Note that we have the device list still open - we have to destroy // the list later. // return TRUE; } // Take the next in the list. nIndex++; } // // We did not find the service. // SetupDiDestroyDeviceInfoList (pspRequest->DeviceInfoSet); return FALSE; } BOOL GetDLLInfo (HMODULE *phDLL, LPFNADDPROPSHEETPAGES *pAC97PropPageProvider) { TCHAR szLoadPath[MAX_PATH]; TCHAR szWinSysPath[MAX_PATH]; GetSystemDirectory(szWinSysPath, MAX_PATH); if(FAILED(StringCbPrintf(szLoadPath, MAX_PATH * sizeof(TCHAR), TEXT("%s\\%s"), szWinSysPath, TEXT("ac97prop.dll")))) { dbgError (TEXT("DisplayPropertySheet: Can't build DLL path\n")); return FALSE; } // Load the library. *phDLL =3D LoadLibrary (szLoadPath); if (!*phDLL) { dbgError (TEXT("DisplayPropertySheet: LoadLibrary")); return FALSE; } // Get the address of the function. *pAC97PropPageProvider =3D (LPFNADDPROPSHEETPAGES)GetProcAddress (*phDLL, "AC97PropPageProvider"); if (!*pAC97PropPageProvider) { dbgError (TEXT("DisplayPropertySheet: GetProcAddress")); FreeLibrary (*phDLL); return FALSE; } return TRUE; } void GetSoundInfo(HWND hWnd) { SP_PROPSHEETPAGE_REQUEST pspRequest; // structure passed to ac97prop SP_DEVINFO_DATA DeviceInfoData; // pspRequest points to it. HMODULE hDLL; // Module handle of library LPFNADDPROPSHEETPAGES AC97PropPageProvider; // function to be called. PROPSHEETHEADER psh; if (!FindSupportingSPDIFOutAudioDevice(&pspRequest, &DeviceInfoData)) { MessageBox (hWnd, TEXT("can't find supporint SPDIF-OUT audio device"), AppletName, MB_ICONSTOP | MB_OK); return; } // Load the library and get the function pointer. if (!GetDLLInfo (&hDLL, &AC97PropPageProvider)) { MessageBox (hWnd, TEXT("The property page DLL could not load."), AppletName, MB_ICONSTOP | MB_OK); SetupDiDestroyDeviceInfoList (pspRequest.DeviceInfoSet); return; } .. =2E. } // AC97PropPageProvider in ac97prop.DLL BOOL APIENTRY AC97PropPageProvider ( PSP_PROPSHEETPAGE_REQUEST pPropPageRequest, LPFNADDPROPSHEETPAGE fAddFunc, LPARAM lParam ) { PSP_DEVICE_INTERFACE_DETAIL_DATA pDeviceInterfaceDetailData; tAC97Features *pAC97Features; PROPSHEETPAGE PropSheetPage; HPROPSHEETPAGE hPropSheetPage; // Check page requested if (pPropPageRequest->PageRequested !=3D SPPSR_ENUM_ADV_DEVICE_PROPERTIES) { return FALSE; } // Check device info set and data if ((!pPropPageRequest->DeviceInfoSet) || (!pPropPageRequest- >DeviceInfoData)) { return FALSE; } // Allocate the memory for the AC97 features. pAC97Features =3D (tAC97Features *) LocalAlloc (LPTR, sizeof (tAC97Features)); if (!pAC97Features) { dbgError (TEXT("AC97PropPageProvider: LocalAlloc: ")); return FALSE; } // Get the device interface detail which return a path to the device // driver that we need to open the device. if (!GetDeviceInterfaceDetail (pPropPageRequest, &pDeviceInterfaceDetailData)) { LocalFree (pAC97Features); return FALSE; } // Get the AC97 features through the private property call. if (!GetAC97Features (pDeviceInterfaceDetailData, pAC97Features)) { LocalFree (pDeviceInterfaceDetailData); LocalFree (pAC97Features); return FALSE; } #ifdef PROPERTY_SHOW_SET // Show how we would set something in the driver AC97ShowSet (pDeviceInterfaceDetailData); #endif // We don't need the device interface details any more, get rid of it now! LocalFree (pDeviceInterfaceDetailData); // initialize the property page PropSheetPage.dwSize =3D sizeof(PROPSHEETPAGE); PropSheetPage.dwFlags =3D 0; PropSheetPage.hInstance =3D ghInstance; PropSheetPage.pszTemplate =3D MAKEINTRESOURCE(DLG_AC97FEATURES); PropSheetPage.pfnDlgProc =3D AC97DlgProc; PropSheetPage.lParam =3D (LPARAM)pAC97Features; PropSheetPage.pfnCallback =3D NULL; // create the page and get back a handle hPropSheetPage =3D CreatePropertySheetPage (&PropSheetPage); if (!hPropSheetPage) { LocalFree (pAC97Features); return FALSE; } // add the property page if (!(*fAddFunc)(hPropSheetPage, lParam)) { DestroyPropertySheetPage (hPropSheetPage); LocalFree (pAC97Features); return FALSE; } return TRUE; } BOOL GetAC97Features (PSP_DEVICE_INTERFACE_DETAIL_DATA pDeviceInterfaceDetailData, tAC97Features *pAC97Features) { HANDLE hTopology; KSPROPERTY AC97Property; ULONG ulBytesReturned; BOOL fSuccess; // Open the topology filter. hTopology =3D CreateFile (pDeviceInterfaceDetailData->DevicePath, GENERIC_READ, FILE_SHARE_READ,// | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL); // Check for error. if (hTopology =3D=3D INVALID_HANDLE_VALUE) { dbgError (TEXT("GetAC97Features: CreateFile: ")); // // // have error : can=92t find the file specified. // // // // return FALSE; } // Fill the KSPROPERTY structure. AC97Property.Set =3D KSPROPSETID_Private; AC97Property.Flags =3D KSPROPERTY_TYPE_GET; AC97Property.Id =3D KSPROPERTY_AC97_FEATURES; fSuccess =3D DeviceIoControl (hTopology, IOCTL_KS_PROPERTY, &AC97Property, sizeof (AC97Property), pAC97Features, sizeof (tAC97Features), &ulBytesReturned, NULL); // We don't need the handle anymore. CloseHandle (hTopology); // Check for error. if (!fSuccess) { dbgError (TEXT("GetAC97Features: DeviceIoControl: ")); return FALSE; } return TRUE; } pDeviceInterfaceDetailData->DevicePath values is \\\\?\ \pci#ven_1102&dev_0005&subsys_00311102&rev_00#4&35fae160&0&00f0#{dda54a40-1e= 4c-11d1- a050-405705c10000}\\spdifouttopo. then we got some error : =93GetAC97Features: CreateFile: can=92t find the file specified.=94 also, I checked winobj utility in sysinternals.com. It=92s shows follow : Name : pci#ven_1102&dev_0005&subsys_00311102&rev_00#4&35fae160&0&00f0#{dda54a40-1e4= c-11d1- a050-405705c10000} Type : SymbolicLink SymLink : \Device\NTPNP_PCI0022 tried to stuff... hTopology =3D CreateFile (TEXT("\\\\?\ \pci#ven_1102&dev_0005&subsys_00311102&rev_00#4&35fae160&0&00f0#{dda54a40-1e= 4c-11d1- a050-405705c10000}\\Topology", ...... thease case, we got success. but, can't control DeviceIoControl. which do I use symbolink name? Thanks. Eric Ahn Tag: Can we write kernel mode dll or application ? Tag: 107393
  - 9
    - Printer Drivers Hi all, where should i look for begin developing printer drivers? is UMDF supports for writing printer drivers? Tag: Can we write kernel mode dll or application ? Tag: 107392
  - 10
    - Mirror display driver in the multimon configuration (negative origin) I'm trying to enable support of the multimonitor configurations for my mirror driver. I had modified mirror driver loading code to bind it to the properly initialized DEVMODE (dmPosition etc), so mirror driver binds to the entire virtual screen. Firstly, i had configured my test system with dual monitor in this way: |0,0----------------1024,0--------------| | M1 (primary) | M2 | | | | |0,768------------1024,768-----------| In this configuration all works fine - all gdi calls correctly mirrored to the mirror driver back buffer. Next, i tried to move M2 just before M1, so virtual display origin in X becomes negative: |(-1024,0)--------0,0------------------| | M2 | M1 (primary) | | | | |(-1024,768)----0,768---------------| At this point most of the mirrored gdi calls draws in the back surface incorrectly - as if there is no negative origin, how i can feel it. I tried to debug this - parameters to the DrvBitBlt/DrvCopyBits seems to be quite correct (all back surf coordinates mapped to the (0,0) origin). And more - blits from the back surf to the back surf (for example, when moving window) are not performed correctly. But some gdi calls, that can't use back surface as source (f.e., DrvTextOut) are performed quite well. Mirror driver is very simple: 1. DrvEnableSurface: EngCreateDeviceSurface, EngAssociateSurface. 2. DrvEscape(start): EngCreateBitmap, EngAssociateSurface, EngLockSurface. 3. All hooked DrvXxx calls back to the EngXxx, replacing surface, created at the step 1 by surface, created at the step 2. As I understand XPDM, there is no sense to the mirror driver on his origin - gdi should map coordinates by itself. Or there is a necessity of the "magical steps" to get this working all together? Thanks! Tag: Can we write kernel mode dll or application ? Tag: 107385
  - 11
    - client hardware access I'm new to driver development and haven't had much luck searching the forums. How would i go about accessing a driver on a remote (xp or 2000) machine through tcp/ip. Basically i don't know how to create a handle to a .sys on a remote machine. My goal is to make a remote client app that can access my centralized hardware. Can anyone point me in the right direction or at least where to find related material on the subject. Thanks, Kyle Tag: Can we write kernel mode dll or application ? Tag: 107384
  - 12
    - Resource Rebalancing We are writing a WDM driver on Windows Server 2008 (64 bit) for our PCI device. Our device has a 64 bit BAR whose size is a multiple of 32GB. The BIOS doesn't enable this BAR by default and we'll have to enable it dynamically by setting a particular bit in the PCI config space. We are doing this in the AddDevice routine of our driver. Please let me know what is the procedure to get this BAR recognized by Windows. Will Resource rebalancing help solve this problem? I know that to intiate the resource rebalancing sequence, I need to call IoInvalidateDeviceState routine. But where do I call this routine from? Can somebody please help me solve this problem? Tag: Can we write kernel mode dll or application ? Tag: 107359
  - 13
    - annoying assertion - Wdf01000!FxPoolDestroy Hi all, When testing suprise removal, I got an annoying assertion sometimes. I ignore that assertion and go on the test, it seems fine until now. I don't feel comfortable about that assertion because I can't explain what's going on. Does anyone give me some advice? Thanks. ^_^ Ziv ------------------------------------------------------------------------------------------- KDTARGET: Refreshing KD connection **** WUDF Host Problem Disconnect (8) detected in host 0x754 by Reflector - exit code 259 Break instruction exception - code 80000003 (first chance) nt!DbgBreakPoint: 81ea3954 cc int 3 0: kd> !analyze -v ******************************************************************************* * * * Bugcheck Analysis * * * ******************************************************************************* Unknown bugcheck code (0) Unknown bugcheck description Arguments: Arg1: 00000000 Arg2: 00000000 Arg3: 00000000 Arg4: 00000000 Debugging Details: ------------------ PROCESS_NAME: System FAULTING_IP: nt!DbgBreakPoint+0 81ea3954 cc int 3 EXCEPTION_RECORD: ffffffff -- (.exr 0xffffffffffffffff) ExceptionAddress: 81ea3954 (nt!DbgBreakPoint) ExceptionCode: 80000003 (Break instruction exception) ExceptionFlags: 00000000 NumberParameters: 3 Parameter[0]: 00000000 Parameter[1]: 840e4d78 Parameter[2]: 00000000 ERROR_CODE: (NTSTATUS) 0x80000003 - {EXCEPTION} Breakpoint A breakpoint has been reached. DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT BUGCHECK_STR: 0x0 CURRENT_IRQL: 0 LAST_CONTROL_TRANSFER: from 82833cd3 to 81ea3954 STACK_TEXT: 85571984 82833cd3 8bc360a0 01c360c8 00000000 nt!DbgBreakPoint 8557199c 82833cf8 8bc360a0 8bc360c8 855719b8 Wdf01000!FxPoolDestroy +0x62 855719ac 8282cb0a 8bc360a0 855719d0 8283e0f2 Wdf01000! FxPoolPackageDestroy+0x12 855719b8 8283e0f2 8bc360a0 85571b58 933da1b0 Wdf01000!FxDestroy+0x15 855719d0 98b95ef7 933da1b0 85571b3c 820c4737 Wdf01000!FxDriver::Unload +0xa6 855719dc 820c4737 933da1b0 b0726f81 a1f26638 rtkwhci!FxStubDriverUnload +0x1a [d:\longhorn\drivers\wdf\kmdf\src\dynamic\stub\stub.cpp @ 153] 85571b3c 81fbcaa8 00000001 a103a37c 00eeb258 nt!IopUnloadDriver+0x355 85571b60 81f1c6fa a1f46500 8c3d8098 00000001 nt!PnpUnloadAttachedDriver +0x73 85571b80 820c712b a103a378 00000000 00000000 nt! PnpRemoveLockedDeviceNode+0x1ef 85571b98 820c73db 00000002 00000000 00000000 nt! PnpDeleteLockedDeviceNode+0x2b 85571bcc 820c70cb 93217b70 a1f46500 00000002 nt! PnpDeleteLockedDeviceNodes+0x4c 85571c04 820c704a 8c7e0e10 00000000 81e23030 nt!PnpDelayedRemoveWorker +0x54 85571c20 81f1c1a6 93217b70 00000001 877f5df8 nt! PnpChainDereferenceComplete+0xe7 85571c4c 820cb481 8c315658 00000002 00000000 nt!PnpIsChainDereferenced +0x77 85571d04 81fb6e17 85571d34 00000000 a1f84560 nt! PnpProcessQueryRemoveAndEject+0xb8c 85571d1c 81fe2398 00000000 81f5413c 840e4d78 nt! PnpProcessTargetDeviceEvent+0x38 85571d44 81e8a41d 88e2e818 00000000 840e4d78 nt!PnpDeviceEventWorker +0x201 85571d7c 82027a1c 88e2e818 b072697d 00000000 nt!ExpWorkerThread+0xfd 85571dc0 81e80a3e 81e8a320 00000001 00000000 nt!PspSystemThreadStartup +0x9d 00000000 00000000 00000000 00000000 00000000 nt!KiThreadStartup+0x16 STACK_COMMAND: kb FOLLOWUP_IP: rtkwhci!FxStubDriverUnload+1a [d:\longhorn\drivers\wdf\kmdf\src\dynamic \stub\stub.cpp @ 153] 98b95ef7 e8abffffff call rtkwhci!FxStubDriverUnloadCommon (98b95ea7) FAULTING_SOURCE_CODE: No source found for 'd:\longhorn\drivers\wdf\kmdf\src\dynamic\stub \stub.cpp' SYMBOL_STACK_INDEX: 5 SYMBOL_NAME: rtkwhci!FxStubDriverUnload+1a FOLLOWUP_NAME: MachineOwner MODULE_NAME: rtkwhci IMAGE_NAME: rtkwhci.sys DEBUG_FLR_IMAGE_TIMESTAMP: 48685225 FAILURE_BUCKET_ID: 0x0_VRF_rtkwhci!FxStubDriverUnload+1a BUCKET_ID: 0x0_VRF_rtkwhci!FxStubDriverUnload+1a Followup: MachineOwner --------- 0: kd> !pool 8bc360a0 Pool page 8bc360a0 region is Nonpaged pool 8bc36000 size: 50 previous size: 0 (Allocated) Muta (Protected) 8bc36050 size: 18 previous size: 50 (Free) .... 8bc36068 size: 30 previous size: 18 (Allocated) Ntfn *8bc36098 size: f0 previous size: 30 (Allocated) *FxDr Pooltag FxDr : KMDF driver globals/generic pool allocation tag. Fallback tag in case driver tag is unusable., Binary : wdf01000.sys 8bc36188 size: 38 previous size: f0 (Allocated) Vad 8bc361c0 size: 40 previous size: 38 (Allocated) Alep 8bc36200 size: 48 previous size: 40 (Allocated) Vadl 8bc36248 size: 980 previous size: 48 (Free) WSET 8bc36bc8 size: b0 previous size: 980 (Allocated) CcVp 8bc36c78 size: b8 previous size: b0 (Allocated) File (Protected) 8bc36d30 size: 70 previous size: b8 (Allocated) MmCa 8bc36da0 size: 30 previous size: 70 (Allocated) Even (Protected) 8bc36dd0 size: b8 previous size: 30 (Allocated) File (Protected) 8bc36e88 size: 38 previous size: b8 (Allocated) Vad 8bc36ec0 size: b8 previous size: 38 (Allocated) File (Protected) 8bc36f78 size: 88 previous size: b8 (Allocated) MmCa 0: kd> !pool 8bc360c8 Pool page 8bc360c8 region is Nonpaged pool 8bc36000 size: 50 previous size: 0 (Allocated) Muta (Protected) 8bc36050 size: 18 previous size: 50 (Free) .... 8bc36068 size: 30 previous size: 18 (Allocated) Ntfn *8bc36098 size: f0 previous size: 30 (Allocated) *FxDr Pooltag FxDr : KMDF driver globals/generic pool allocation tag. Fallback tag in case driver tag is unusable., Binary : wdf01000.sys 8bc36188 size: 38 previous size: f0 (Allocated) Vad 8bc361c0 size: 40 previous size: 38 (Allocated) Alep 8bc36200 size: 48 previous size: 40 (Allocated) Vadl 8bc36248 size: 980 previous size: 48 (Free) WSET 8bc36bc8 size: b0 previous size: 980 (Allocated) CcVp 8bc36c78 size: b8 previous size: b0 (Allocated) File (Protected) 8bc36d30 size: 70 previous size: b8 (Allocated) MmCa 8bc36da0 size: 30 previous size: 70 (Allocated) Even (Protected) 8bc36dd0 size: b8 previous size: 30 (Allocated) File (Protected) 8bc36e88 size: 38 previous size: b8 (Allocated) Vad 8bc36ec0 size: b8 previous size: 38 (Allocated) File (Protected) 8bc36f78 size: 88 previous size: b8 (Allocated) MmCa Tag: Can we write kernel mode dll or application ? Tag: 107356
  - 14
    - Standard user can not do uninstallation in control panel in Vista Hi Sir I get a problem with the DIFxAPP.msm when building an installer. The merge module comes from DIFx 2.1. We use DIFxAPP.msm to install driver in our installer. After we build the installer (Setup.exe, SPI.msi, Data1.cab) with the merge module, we login Vista 32 with an administrator account, and finish the installation with setup.exe, the driver can be installed correctly. Then we log out, and re-login as a standard user, and do uninstallation in control panel. In the uninstallation process, there will be an error and the process rolls back. Later under the standard user account we use SPI.msi do uninstallation in command line, and the process is same with that in control panel. According the log we catched from command line, the error come from custom action "UninstallDriverPackages" that comes from the DIFxApp.msm Following is the prompt information from the log. DIFXAPP: UninstallDriverPackages() DIFXAPP: 'CustomActionData' property 'DIFxApp Version' is 2.1. DIFXAPP: 'CustomActionData' property 'UI Level' is 3. DIFXAPP: 'CustomActionData' property 'componentId' is {1B113BBD-6D70-11D4-82D2-00D0B72E1DB9}. DIFXAPP: 'CustomActionData' property 'flags' is 0x7. DIFXAPP: 'CustomActionData' property 'ProductName' is Sentinel Protection Installer 7.5.0. DIFXAPP: 'CustomActionData' property 'ManufacturerName' is SafeNet, Inc.. DIFXAPP: ERROR 0x2 encountered while opening install-info subkey for component '{1B113BBD-6D70-11D4-82D2-00D0B72E1DB9}' DIFXAPP: UninstallDriverPackages failed with error 0x2 DIFXAPP: RETURN: UninstallDriverPackages() 2 (0x2) The detailed information about Vista 32 is 1. Microsoft Windows [Version 6.0.6000] 2. Windows Vista Enterprise 3. No patch installed The detailed information about merge module is 1. Come from DIFx 2.1 2. English, x86 (\DIFxApp\English\MergeMod\x86\DIFxApp.msm) If we do uninstallation under Administrator account, anything are right. Are there anyone can lend me a hand for the issue, it is a bug of DIFx or Vista OS? Any comment will do me a great help. Thanks gwei Tag: Can we write kernel mode dll or application ? Tag: 107355
  - 15
    - Query on Difference in driver behavior when printing directly to Hi Ben , I have been observing a very peculiar behavior for some Genoa applications while printing from our monolithic printer driver. If you could spare some time to give your valuable suggestions, it would be very helpful to us. Please find the details of the buggy behavior below: Difference in driver behavior when printing directly to printer compared to when printed to file A document formed using the application called LivePix Soho(from Genoa Test Suite) is printing in an erroneous way(extra lines are printed in a bitmap) when printed directly to the printer But it is printing properly when it is printed to file (choose FILE as the port and specify the file name =93test.prn=94) and the prn is fired to the printer. The document contains a 24bits per pixel (8bits each for red, blue and green) bitmap and some extra lines are printed on the right edge of the bitmap. I debugged and found that DrvStretchBlt is being called in our driver and the parameter from GDI having the source image data, psoSrc->pvScan0, has different and erroneous data when job is given to printer when compared to the data it has when job is given to file. Because of this erroneous data the extra lines are getting printed. Any inputs on the same would be greatly helpful. Thanks and Regards, Ayshwarya Mohandas Tag: Can we write kernel mode dll or application ? Tag: 107354
  - 16
    - Why my system thread CPU usage reach 100% ? Hi I've tried to add a system thread but I found CPU Usage reach 100% , is there any possible cause ? I've seen another driver source which use many threads but CPU Usage only reached 10% . I will study its driver source, here is my code , please take a look at it KeInitializeEvent( &extension->TestThreadEndEvent, SynchronizationEvent, FALSE ); InitializeObjectAttributes(&extension->TestThreadobjAttr, NULL, OBJ_KERNEL_HANDLE, NULL, NULL); extension->btestThreadRunning = FALSE; ntStatus = PsCreateSystemThread ( OUT &extension->htestThreadHandle, IN THREAD_ALL_ACCESS, IN &extension->TestThreadobjAttr, IN NULL, OUT NULL, IN (PKSTART_ROUTINE)testThread, IN (PVOID) extension ); void testThread(PVOID pContext) { PDEVICE_EXTENSION pDevExt = (PDEVICE_EXTENSION) pContext; pDevExt->btestThreadRunning = TRUE; while( pDevExt->btestThreadRunning==TRUE ) { KeStallExecutionProcessor(10000); } KeSetEvent(&pDevExt->TestThreadEndEvent, IO_NO_INCREMENT,FALSE); } Thank for your helping . Tag: Can we write kernel mode dll or application ? Tag: 107353
  - 17
    - Where can I get the windows7 build 6720 or the later? It seems there are too many bugs with windows7 build6519, how could I get the latest windows 7? I need it to test my ndis6.2 NIC driver. Thanks. Tag: Can we write kernel mode dll or application ? Tag: 107342
  - 18
    - 'Power Management' option lost from DeviceManager, ndis6.2 miniport driver build with WDK6734.1 DeviceManager ¨¤ property lost the ¡®Power Management¡¯ option. My ndis6.2 NIC driver registerd NDIS_PM_CAPABILITIES, but it never gets OID_PM_PARAMETERS query/set. NDIS_MINIPORT_ADAPTER_GENERAL_ATTRIBUTES GeneralAttributes; // pPMCapabilities -- PNDIS_PM_CAPABILITIES NdisZeroMemory( pPMCapabilities, sizeof(*pPMCapabilities) ); pPMCapabilities->Header.Type = NDIS_OBJECT_TYPE_DEFAULT; /*fixme!*/ pPMCapabilities->Header.Revision = NDIS_PM_CAPABILITIES_REVISION_1; pPMCapabilities->Header.Size = NDIS_SIZEOF_NDIS_PM_CAPABILITIES_REVISION_1; pPMCapabilities->SupportedWoLPacketPatterns = NDIS_PM_WOL_BITMAP_PATTERN_SUPPORTED | NDIS_PM_WOL_MAGIC_PACKET_SUPPORTED; pPMCapabilities->NumTotalWoLPatterns = MAX_PATTERN_COUNT; pPMCapabilities->MaxWoLPatternSize = MAX_PATTERN_SIZE; // maximum bytes that can be compared against a pattern. pPMCapabilities->MaxWoLPatternOffset = 0; // strting from MAC header, how many bytes in the packet can be examined. pPMCapabilities->MaxWoLPacketSaveBuffer = MAX_PATTERN_SIZE; // how many bytes of WOL packet can be saved to a buffer and indicated up. pPMCapabilities->MinMagicPacketWakeUp = NdisDeviceStateD3; pPMCapabilities->MinPatternWakeUp = NdisDeviceStateD3; pPMCapabilities->MinLinkChangeWakeUp = NdisDeviceStateD3; GeneralAttributes.PowerManagementCapabilitiesEx = &PMCapabilities; Status = NdisMSetMiniportAttributes(Adapter->MiniportAdapterHandle, (PNDIS_MINIPORT_ADAPTER_ATTRIBUTES)&GeneralAttributes); Any suggestions? Thanks. Tag: Can we write kernel mode dll or application ? Tag: 107341
  - 19
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Hi

Should kernel mode process be driver, can it be a system service like a dll
or app ?

Is there any function which can switch process between user mode and kernel
mode ?

Thank you .

Top

Re: Can we write kernel mode dll or application ? by Don

Don
Fri Jul 04 05:46:13 CDT 2008

A kernel mode module has to be a driver. Kernel mode DLL's are "export
drivers". Given your other questions, I would recommend you take a good
driver class before going near the kernel.

--
Don Burn (MVP, Windows DDK)
Windows 2k/XP/2k3 Filesystem and Driver Consulting
Website: http://www.windrvr.com
Blog: http://msmvps.com/blogs/WinDrvr
Remove StopSpam to reply

"Kid" <Kid@discussions.microsoft.com> wrote in message
news:590E31E2-5480-447D-B54C-700E27696F81@microsoft.com...
> Hi
>
> Should kernel mode process be driver, can it be a system service like a
> dll
> or app ?
>
> Is there any function which can switch process between user mode and
> kernel
> mode ?
>
> Thank you .

Top