I am Beginner

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- Previous
  - 1
    - filter driver confusion This is may seem a rather dumb question but.. I have a filter driver for a usb composite device.On attaching the usb device,Windbg shows that my driver is loaded and I can see DbgPrint outputs of my driver but when I look in the properties of my device in Device Manager and see driver page,it only mentions the standard Windows driver(usbhub.sys) and does not tell about my filter driver .In my inf file I tell Windows to load the standard driver and then also load my filter driver ... what is wrong here ? TIA Tag: I am Beginner Tag: 59250
  - 2
    - CDC ACM problems on a few PCs Hi, I'm having some trouble with my USB device. I'm posting this here, as I'm using the USBSER.SYS driver to make it appear as a CDC ACM modem/virtual comport, and it may be a known problem with the driver (well, you can always hope it's someone elses fault :-) . On ~5% of the PCs it's been installed on, the serial communication hangs as soon as my device have made its first bulk IN transfer (i.e. the first bytes sent over the virtual comport). The transfer is never acknowledged, and the communication hangs. Up to this point, enumeration and opening the comport goes well. Sending data to from host to device also works, and does not hang the device. I put a BusHound log of an OK run at: http://magnus.freeshell.org/douglas_vcp_ok_1.txt I get a similar log from my laptop: http://magnus.freeshell.org/douglas_error_tx529.txt - up until it hangs after the first IN transmission! Both are running Windows 2000. 1) Does the problem look familiar to anyone here? 2) Could you point me to the right specs, so I can make make heads or tails of the last USB request block, NT I/O request packet and NT IRP stack location? I've seen the problem mainly on laptops, but also on one stationary PC, all of them running Windows XP (but most PCs run XP now, so that may not be a factor). My device uses the Atmel AT91RM9200 uC (with its embedded USB device controller). My code is largely based on Atmel's example: http://www.atmel.com/dyn/resources/prod_documents/doc4322.pdf and AT91RM9200-BasicUSB-ARM1_2-2_0.zip at http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3193 Thanks for reading this, and if you can help me /Magnus Tag: I am Beginner Tag: 59247
  - 3
    - NDISUIO and SNETCFG installation issue Hi, Need some help here ... NDISUIO driver is install in relation to a network connection (you click on the properties of a network connection and install it is a protocol), however, it can also send OIDs and get statuses from connections it was not installed on. Why is that so ? Since I can install it on one network connection and send OIDs with it to another can I install it globally. When installing it using SNETCFG how can I specify which network connection to install it on ? How SNETCFG installation is different from the GUI installation which I must specify a network connection to ? Thanks, Tag: I am Beginner Tag: 59246
  - 4
    - Where are the Advanced Printer Options stored? Hi, I am desperately trying to find out where the options you select on a printer properties screen are stored. I have parsed through the PPD file and I have a list of all of the finishing options and install options and all of the valid values for each. However, I can find just the install options in the registry but I can't find where it stores the value for the finishing options. For example, on the printer I am looking at, there is an optional install for a saddle stitcher, with an option for none or S-501. If I select either one, that value is in the PrinterDriverData in the registry. However, for finishing options (for example binding) I can select Left Binding and Apply. When I go back into the printer properties, the Left Binding option is set. So, the question is, where did it store that I selected Left Binding. It is not in the PrinterDriverData in the registry. Any idea where the driver might save that information so I can get at it? I am trying to access this information from a .Net Application. I am using the Win32 API's (mostly WinSpool) to get the DevMode and the DeviceCapacities and I'm parsing through the PPD to get the device dependent options. Thanks for your time! Chris Tag: I am Beginner Tag: 59244
  - 5
    - Create Printer Port on NT4 Hello, I am currently trying to create an printer port programmaticaly without showing any dialog, method that work from Win. 2000 up, but i wonder whitch method is used , for NT4 systems while "XcvData " api is not supported ? regards, cosmin Tag: I am Beginner Tag: 59243
  - 6
    - PCL6 and postscript3 manual Hi, How do I get PCL6 and PS3 tech reference manuals? Thanks keshav Tag: I am Beginner Tag: 59242
  - 7
    - DDKBUILD Release 3.11.31 DDKBUILD Bugfix Release 3.11.31 This is release 3.11.31 of DDKBUILD Bugs fixed: DDK W2k3 SP1 Build 1289 support. WDF build 1.00.5033 aupport. New features: Prefast view window opens after prefast build completes. No command line options have changed. W2k3 SP1 DDK introduced mysterious bscmake option to setenv.bat, ddkbuild now detects if setenv.bat supports this option and provides it so that visual studio browsing works. Hannes Sternerson suggested that perfast view ought to run after a prefast build, and I thought, why not? So Hannes' excellent suggestion has been incorporated into the ever more hideous ddkbuild. Free download available at http://www.hollistech.com -- ===================== Mark Roddy DDK MVP Windows 2003/XP/2000 Consulting Hollis Technology Solutions 603-321-1032 www.hollistech.com Tag: I am Beginner Tag: 59239
  - 8
    - Multiple named filters Hello: I have upper filter above "serenum". In Filter.AddDevice(...) I created named object "NamedFilter_1". I can open/close and read/write to "NamedFilter_1" from user-mode appl In Filter.DriverEntry(...) I created named object "NamedFilter_2". Using the same user-mode appl I can open/close this object. But when I try to write to "NamedFilter_2" IRP_MJ_WRITE arrives with stack->Parameters.Write.Length = 0 and Irp->AssociatedIrp.SystemBuffer = NULL Thank you, dave Tag: I am Beginner Tag: 59235
  - 9
    - Log JOB_INFO_2 and DEVMODE info to a SQL database using a port mon I need to log the information found in JOB_INFO_2 and DEVMODE structs for each print job to a SQL database, before they are sent to the printer via LPR or RAW(port 9100). I may even need to delete print jobs that contain certain undesired information (such as too high of a copy count) before they are sent to the printer. I believe this could be accomplished by writing a custom port monitor. However, I have never done this before. I found the Local port monitor source code in the src\print\monitors\localmon and src\print\monitors\localui directories of the Windows 2003 Server DDK. Does anyone know where I can get source code for either the Standard TCP/IP port monitor or the LPR port monitor? Tag: I am Beginner Tag: 59228
  - 10
    - Can the W2K3 SP1 RC1 DDK be used for shipping products today We're having an internal debate about which DDK version is appropriate for a driver we plan to ship shortly. I believe the W2K3 SP1 RC1 DDK is the one to use. Some people here are uncomfortable with the RC1 designation and feel we should use the two year old W2K3 DDK. One of the arguments against the RC1 DDK seem to be drivers built with the old W2K3 kit are supported, but drivers build with the SP1 RC1 kit are not. Another argument, in favor of the RC1 DDK is it's the compiler/headers being used right now at Microsoft for OS's/patches/drivers, and has bugs fixed that may still be in the old W2K3 kit. Can someone from Microsoft comment? Thanks. Jan Tag: I am Beginner Tag: 59215
  - 11
    - Accessing Information in the PPD file Hello, Are there any methods in .NET (or COM API's) to access the information in a PPD file. I need to get a list of the installable options and items in the OpenUI tags. I can pars through the file manually, but I was wondering if there is sample code or API's that will do this for me. Any help would be greatly appreciated. Thanks! Chris Tag: I am Beginner Tag: 59214
  - 12
    - HCT 12.0 script debugging tools (Sucess?) Does anyone in this forum have any success with stopping or setting breakpoints in HCT 12.0 scripts? (XP SP2) We had script debugging running on HCT 11.2 and SP1 but it all broke for SP2. What do you use? Thanks -Ron- Tag: I am Beginner Tag: 59213
  - 13
    - Registry Cleanup Hi! I'm currently writing a dynamic device driver for Win9x/ME that utilizes the windows registry to become accessible to some win32 applications. The problem is that if you restart the computer without exiting windows (e.g. by reseting the computer) the driver doesn't get a chanse to clean up in the registry. The information will thus remain in the registry in the next windows session, and win32 applications will believe there's resources available that aren't actually available, since the driver isn't even loaded. So; how can I get rid of registry keys I've added from the driver even if the computer is reseted? My best idea so far is to add a runonce-value that is removed when the driver is unloaded, but remains if windows isn't terminated properly. But I don't want to distribute a win32 program whose only purpose is to clean the registry. Is there any other way to accomplish it? Is it, for instance, possible to do something like this (conceptual example only): HKLM |- Software |--- Microsoft |----- Windows |------- CurrentVersion |--------- RunOnce |----------- CleanUpResource1 = "regedit -remove HKLM/Hardware/bla/bla" i.e. utilize an existing application to do the cleanup. The driver is designed for Windows 95/98/ME. Please help! Nille Tag: I am Beginner Tag: 59208
  - 14
    - rs232 hello, I need an driver for rs232 port in real time. my pc is connected with n-terminals using polling tecnology. I develop with VS 2003, but response time is very slow. can I create an driver with access direct io port? how? thanks Tag: I am Beginner Tag: 59205
  - 15
    - Multiport PCI driver under WDM I have written a NT driver for a custom developed PCI card, it's a multi-port serial adapter. Under NT when DriverEntry() was called, I used the HAL functions to find the presence of our adapter on the bus. Knowing beforehand how many serial ports are on the adapter I could simply create X instances of the device. As all ports share the same resources, I allocated interrupts and common buffer areas in DriverEntry. Each device never assigned any resources, they all share the same common resources. Now I have to port this driver to the WDM model. My problem is that the HAL functions I used to scan the bus is not available anymore. When OnStartDevice is called, the I/O manager passes you a resource list. Problem is I want to create more than one device and I can't seeing as the only time I will know what hardware resources I have been assigned is when the device object is already created! How can I create a device object per port for the adapter and still assign the PCI resources? How else can I open these ports from user-mode, if not by calling CreateFile() and using the symbolic link of each port? That can only happen if each port is its own device object even though there is only one physical PCI adapter. The adapter doesn't fit into the multifunction specification. The adapter has X logical ports in a CPU not X UARTs, but they all share the same hardware resources. There is a common buffer and an interrupt line. A message is then passed to and fro using this common buffer and signalled with the interrupt. Each message in its header, contains port information. I wish to have X devices ( and X symbolics links ). As far as I could find this type of driver is called a multiport driver, where there are more than one logical function on a device. A multifunction device is when each function uses non-overlapping hardware resources, my adapter doesn't fit that description. I can't find any examples for multiport drivers however. What structure should my driver contain? Do I need a bus driver for the adapter and then a function driver per port? Or is there a INF section that I am missing? Tag: I am Beginner Tag: 59189
  - 16
    - Video memory mapping - HOWTO? Hello I'm trying to map the video memory in order to display text from a boot driver. i know the memory for color display starts at 0xA0000 but for some reason this isn't working: #define BUFFERSIZE 8192 PHYSICAL_ADDRESS paVideoMem; PUCHAR pVideoMem = NULL; paVideoMem.LowPart = 0xA0000; pVideoMem = MmMapIoSpace(paVideoMem,BUFFERSIZE,FALSE); *pVideoMem = 0x07690748 // should print H in the upper left corner Any suggestions ? Thanx. Tag: I am Beginner Tag: 59188
  - 17
    - Develop a printer driver with DDK Hello, I would like to develop a printer driver using the DDK. I have the DDK installed and looked through, but at this time I have no idea how to start. Is there a tutorial for developing printer drivers or a good book which can help? Thx for help. AF Tag: I am Beginner Tag: 59185
  - 18
    - Ndis IM driver PnpCapabilities. Hi Thanks for any help. I have an NDIS IM driver under Pocket PC 2003. Its giving me couple of problems for Built-In Wifi medium. Sorry, I know its a painful question. Hope some one helps me. External WiFi cards work fine. When I have Built-In WiFi on, it has couple of options to turn it ON/OFF. 1. Thru a WiFi utility that comes with the device. 2. Connectivity icon at the top of the machine. When clicked it shows "Turn Wi-Fi ON/OFF". Also this option is different in some machines "Turn Flight mode ON/OFF". Code: 1. I return ndis status SUCCESS in ProtocolPnpHandler(NetEventSetPower). I maintain the power state in the driver. 2. In the PnpCapabilties Query I tried to return ndis status NOT SUPPORTED or SUPPORTED (with Wakeup capabilities set to "NdisDeviceStateUnspecified". Also I tried simply return the statuses without filling these wakeupcapability buffers. The problem is Both the WiFi options to Turn on and off the medium works as such when the device in ON. When I switch off the power and back on, One of them works and other doesn't. (Wi-Fi was on when powered down.) Example. If I set STATUS NOT SUPPORTED in pnpcapabilities, Power and flight mode works. If I set SUPPORTED, Utility and power works. The other is broken, Meaning, when the power is back its frozen or if you click to switch off the Wi-Fi, its frozen. Mostly in "NdisIMDeInitializeDeviceInstance". Could some please give me some direction here? some how the protocol stacks on top seem to hang. Is there away to disable(remove) this flight mode option thru the pnpcapabilites?. Note: PNPCapabities query will be called twice. I don't know the individual meanings but it looks we can specify different capabilities in both cases to make it work. The code is based on passthru sample that comes with CE 4.2. Thanks for any help. Ganesan Tag: I am Beginner Tag: 59178
  - 19
    - DDK Integration with VS Hello, I just installed the Server 2003 DDK. Am I incorrect in assuming that it is supposed to integrate with Visual Studio? It can't be that I must write my code with notepad and then compile and link at the command line, can it? Please forgive my ignorance, but how does one integrate the DDK with Visual Studio? Or can you point me to an article that tells how? Thank you very much, Rich Tag: I am Beginner Tag: 59171
  - 20
    - File caching Hello, We are building a device that captures data from a number of external sources and organizes them for collection. The device connects to a PC via USB. Our device presents itself to the system as a FAT mass storage device. The data is organized as a set of text files. The user would open the files to see the current settings/data or could use our logging tool which manages the periodic collection of the data if that is what they want. Everything works pretty well except that the 'files' provided by the device change without Windows knowledge of it. Since Windows appears to cache the first image of the file we are not able to see the new values without unmounting and remounting the device. This is obviously not optimal. Everything works correctly when we mount it to Linux (which does not cache the files or root directory). Is there any adjustment we can make to our device that will allow it to tell Windows not to cache anything regarding the filesystem...say, during the device mounting process? Thanks in advance, Kevin Tag: I am Beginner Tag: 59163
  - 21
    - Print preview application i need to write a print preview application that is tied into our printer driver. that is, after the user prints to our driver, we will display a preview of the print job that the user can scroll through. typical printing features will be displayed in the image for each page such as orientation, N-up, etc. development for the actual printer driver is being done as Unidrv plug-ins. from the preview application the user can decide as to whether they really want to print out to the physical printer or to cancel the job. QUESTION 1 is there a preferred point in the printing process that a preview application should be kicked off from such as from the rendering plug-in or from a custom print processor? i was looking into microsoft's sample print processor in their DDK however all of the GDI functions in Print Processors seem to just replay the EMF into the printers DC. QUESTION 2 is it possible to use these GDI functions (e.g. GdiPlayPageEMF) to play back EMF in a preview application into the applications device context? i've seen mention of the function gdiPlaySpoolStream in this newsgroup however there is no current documentation on it. it does appear in GDI32.DLL and there is documentation on it in the Windows 98 DDK. interestingly, Microsoft has stated in some newsgroup articles that this function should be used. QUESTION 3 is the gdiPlaySpoolStream function valid (i.e. will be support in later OSes, etc.) for Windows 2000/XP? can it be used to play back a page at a time (for previewing)? Microsoft reiterates in numerous articles that EMF data that ends up in the Spooler is not the same as EMF generated by an application thus you can not rely on this format for playing back using normal EMF API functions. QUESTION 4 if this is the case how are other printers displaying their Print Preview applications or are they just relying (i.e. hoping) that the format does not change. Tag: I am Beginner Tag: 59161
  - 22
    - Problem with installing stupid driver on win 2K/XP - Oney WDM 2nd Hello, I am trying to install 'stupid' driver on W2k/xp and system can't do it. I did this back then more than a year ago on win98 and it worked great. On win2k or XP f I right click on 'stupid.inf' file -> install, nothing changes. On WinXP I tried something different. That is install using the hardware wizzard. Things appear to be fine (provided I had to compile a release version of samclass.dll referenced in stupid.inf). But after rebooting (as it asks me to) driver class are shown but the an exclamation mark appears on the driver display from which the properties window says "This device is not working properly because Windows cannot load the drivers required for this device [codd 31]. Anyone have any idea to solve this? Thank you. Tag: I am Beginner Tag: 59158
  - 23
    - AVStream Physical Memory Mapping Hi!, In Stream.sys there was a PORT_CONFIGURATION structure available, that pointed out mappings from physical to virtual memory. My PCI card has a large memory range, and I want to access last 256 bytes of it (not using DMA, I just want to map this memory into virtual address - those my PCI card registers). I'm trying to use MmMapIoSpace, this supposed to look like this: PHYSICAL_ADDRESS physAddress; Memory resource address received from >>TranslatedResourceList<<. physAddress.LowPart += 0x100000L; virtualAddress = (PUCHAR) MmMapIoSpace(physAddress, 256, MmNonCached); But this does not works as I expect it to work - I could make a simple mistake - and If this is only way to implement this I'll try it, but: Is there some other way of receiving those addresses? I remember, I had similar problem with Stream.sys and I have found mapped physical onto virtual addresses in PORT_CONFIGURATION structure. That was very comfortable in Stream.sys. Pawel ps Maybe there are also function simmilar to StreamClassGetPhysicalAddress in AVStream model? Tag: I am Beginner Tag: 59152
  - 24
    - How to set up IoRequestPacket in ClientEventReceiveDatagram? Dear all: Recently I developed a TDI client driver. It is a very simple project which receives UDP packets from particular IP address and port. I tried two methods to achieve the goal. One is to allocate Irp/Mdl and TdiBuildReceiveDatagram to obtain data directly from underlying transport. It works fine! Another is to register ClientEventReceiveDatagram handler, and in the handler I also receive UDP data. However, in the case that the input parameter BytesIndicated != BytesAvailable, I wanted to build a Irp returned to underlying transport for the remainder of the TSDU. It failed! In this handler, I tried two ways to build the Irp, IoAllocateIrp and TdiBuildInternalDeviceControlIrp. As mentioned by DDK documentation, "Callers of TdiBuildInternalDeviceControlIrp must be running at IRQL = PASSIVE_LEVEL".So I pre-call the function to build Irp and in other thread, such as dispatch_IoControl. But both of them failed. OS crashed,and the message is "DRIVER_NO_LESS_OR_EQUAL_IRQL". I don't know how to set up the Irp as *IoRequestPacket for the remainder data. Any idea is appreciated, thanks in advance. Regards, Zhou Tag: I am Beginner Tag: 59151
  - 25
    - Kernel-Mode Basics Hello all, >From the link: http://www.microsoft.com/whdc/driver/tips/km-basics.mspx#EAAA under "Getting your driver to handle more than one I/O request at a time" Second paragraph: "Even if your application uses multiple threads, only one request at a time (per file handle) will get through." I am doubtful about the "per file handle" part. I tried the following thing: >From 2 threads (in an application) i opened the device (created in a simple driver) using CreateFile (and verified that the handles are different). One thread called ReadFile in a loop and the other one called WriteFile in a loop. But i noticed that driver is handling the request 1 at a time. So even though the handles are different the calls are serialized. So what does the "per file handle" mean ? ...Mani Tag: I am Beginner Tag: 59140
- Next
  - 1
    - XML JSP c++: Device Driver UI Hi i am looking at an application developed by the panel of experts and it is a dll made to show the user interface for the application. With the dll(which is made in c++) there are two more files accompnying it: one XML file and one JSP file =B7 An XML document containing the features, options and constraints, and =B7 A Java Script file for controlling the behavior of the controls, menus, bitmaps and tabs on the UI. Could any one explain me why someone like to do so. Respects, Saurabh Aggrawal Tag: I am Beginner Tag: 59139
  - 2
    - Reasons for USB Device Reinstall What are the reasons, other than the USB serial number, that would cause a USB device to be reinstalled when moved to a new USB port? We are in the process of developing a USB device and even though we are specifying a serial number, the Add New Hardware wizard pops up whenever the device is moved to a new port. We are specifying a string descriptor index in the device descriptor and the value of the serial number is the Unicode string â??0123456789â??. This is a temporary value for development purposes, when the device goes into production, each will have its own serial number. Even so, shouldnâ??t this value be sufficient to qualify as a valid USB serial number? Mike Tag: I am Beginner Tag: 59128
  - 3
    - Read data from a printer when its driver is installed on a serial Hello, I want to read data from a printer that is connected to a serial port while its driver is installed. I cannot access the serial port directly. And ReadPrinter() doesn't work. Is there a way to read the data from the printer, even if I have to modify the sample port monitor in the DDK? Or maybe some other way? I could not find the part that limits access to the serial port. Thanks. Tag: I am Beginner Tag: 59119
  - 4
    - network interfaces i wanted to support ip multicast (ipv6). when i receive the multicast list addresses from ndis, i should go and create interfaces as i would do for any primary network interfaces? Tag: I am Beginner Tag: 59118
  - 5
    - About the Filter in Audio Capture Sources Category Dear All: I have written an audio AVStream driver. It registers successfully an audio capture filter into two different categories, Audio Capture Sources and WDM Streaming Capture Devices. The capture filter, which is in WDM Streaming Capture Devices folder, is workable well for any operations. However, when I use the corresponded filter within Audio Capture Sources, there is serious problem below: I can listen the sound from this filter, but I can't stop it. When I push the "stop" button, the graphedit will be blocked!! The OnPinClose function cannot be called by directshow in my driver. Can you help me? Best Regards, H.P. Tag: I am Beginner Tag: 59117
  - 6
    - Relative open with a volume handle ? Is it possible to use the relative open with NtCreateFile and a volume handle; or is this strictly a file system concept? I want to reopen a volume handle with different access permissions. Regards, George. Tag: I am Beginner Tag: 59116
  - 7
    - Printer Icon Hi Folks, I'd like to know if it is possible, and if yes how, to change the Icon of a printer in the "printer and faxes" page. Thanks in advance, Lela Tag: I am Beginner Tag: 59112
  - 8
    - CM_Request_Device_Eject problem Win 2000 SP4 I use a service application to call CM_Request_Device_Eject on an USB stick as soon as the WM_DEVICECHANGE DBT_DEVICE_ARRIVAL was received. CM_Request_Device_Eject returns CR_ACCESS_DENIED with an empty veto buffer. GetLastError talks about an overlapped IO in progress. Trying repeatedly for 40 secs sleeping 200 msecs each time does not change anything. It works fine for a normal application. Tag: I am Beginner Tag: 59111
  - 9
    - $Directory metafile In a filemon log I see some entries like this: 189 10:15:46 myapp.exe:1616 WRITE C:\$Directory SUCCESS Offset: 0 Length: 4096 I assume that $Directory is a meta-file object used by the cache manager and similar to $ConvertToNonresident, which I also sometimes see. http://www.osronline.com/lists_archive/ntfsd/thread5467.html. But can someone confirm this. Thanks, George. Tag: I am Beginner Tag: 59100
  - 10
    - Where is the CHS-LBA translation done? Hi: It seems that the TaskFile in ATA_PASS_THROUGH_EX uses CHS representation. In the ATA/ATAPI standard actually uses LBA representation. Can somebody tell me, where the translation is done? Is it in BIOS or port driver? How the mapping is done? I guess in either case those are logical index, right? Thanks, Tag: I am Beginner Tag: 59096
  - 11
    - Device name for a disk or partition What is the format of the device name for a disk or a partition? I know that in Microsoft Cluster, one example is in the form of "Disk##Partition##" for a partition of a physical disk resource, if the drive letter is not assigned to the partition. I also saw that sometimes the volume number is included in the device name. My question is, as far as Microsoft Cluster is concerned, are there other formats (except for "Disk##Partition##") of device name can be used for a disk partition or a volume? Thanks for any help! Michelle Tag: I am Beginner Tag: 59087
  - 12
    - Device Name of a disk or partition Does anyone know the format of a device name for a disk or a partition? I know in Microsoft Cluster, one example is in the form of "Disk##Partition##" for a partition of a physical disk resource, if the partition is not assigned with a drive letter. But I also saw sometimes the volume number becomes part of a device name (not in microsoft cluster). My question is, as far as Microsoft cluster is concerned, are there any other formats (except for "Disk##Partition##" ) of device name used for a disk partition or a volume when the drive letter is not assigned? Any advice will be appreciated! Michelle Tag: I am Beginner Tag: 59086
  - 13
    - Comminicating config and control data to an RNDIS device Hi Folks, So my RNDIS device is working great. Thanks to everyone, and Bryan, for helping me out. In the end it turns out a lot of confusion was caused by a USB interface device that has some, er, odd interface requirements. (Beware the READY line on the Cypress SX2 device, it doesn't do what you think, or even what the Cypress app notes might imply. It is in no way compatible with the READY input to any processor I'm aware of.) Anyway, my particular RNDIS device is a radio that has a lot of configuration parameters. Some of the parameters are fairly large arrays of numbers and the custom parameter interface provided by RNDIS through the "Advanced" tab of the device seems inadequate for handling such a large amount of data. Plus, it would be nice to be able to re-flash the device from the host. So my question is this: Is there any provision for a host application to send and receive out of band data to and from the RNDIS attached device? I know there's OOB data that can be transported with the data packets, but that doesn't seem like what I'm looking for. But I'm looking into that further to see if there's some way to make it work. One thought I've had is to write a filter driver to insert my own commands into the EP0 stream. But it would be so much easier if something already exists, like maybe an OID that can get set/read from the host that's passed by RNDIS to the device. Anybody have any ideas? Thanks -brian Tag: I am Beginner Tag: 59081
  - 14
    - Knowing when Reset Devmode is called Hi all, I'm lauching the printting of a Word document (using ShellExecute) this creates a spl/emf file. And I wish to know (for each page) when their's a reset devmode is callin order to skip it. Thanks for your help. Tag: I am Beginner Tag: 59073
  - 15
    - silent install of unsigned driver I would like to know how I can set programmaticaly the group policy for the unsigned driver instalation? I found two ways of setting this policy to ignore the warning manually 1. in the System control panel http://www.microsoft.com/resources/documentation/Windows/XP/all/reskit/en-us/Default.asp?url=/resources/documentation/Windows/XP/all/reskit/en-us/prdh_dmt_qrxm.asp 2. in the group policy editor but when I can't do it manually how can I do it programmatical? \Manfred Tag: I am Beginner Tag: 59072
  - 16
    - multicast would ndis issue set OID_802_3_MULTICAST_LIST even if a host join as a SEND_ONLY MEMBER? thanks sophia Tag: I am Beginner Tag: 59067
  - 17
    - Originator of an IRP Hi all, is there a way to identify the originator of a kernel-mode initiated IRP. Regards, Andreas Winter. Tag: I am Beginner Tag: 59059
  - 18
    - query admin privilege from file system filter Hi, I have a file system filter. I want to block all file access except for users belong to admin group. How i can know whether a particular user has administrator privilege Regards John Tag: I am Beginner Tag: 59057
  - 19
    - Inheritance Hi, I trying to derived two different struct from the base one. typedef struct _COMMON_BASE_ { ..... }BASE_ONE, *PBASE_ONE; typedef struct _DERIVED_ONE_ : public _COMMON_BASE_ { ..... }DERIVED_ONE, *PDERIVED_ONE; typedef struct _DERIVED_TWO_ : public _COMMON_BASE_ { ..... }DERIVED_TWO, *PDERIVED_TWO; and when I run "build" i have error complaining about ":". I built the same code in VS with no problem. Could you point what I'm doing wrong ? thank you Tag: I am Beginner Tag: 59049
  - 20
    - Null driver WHQL signing Is it possible to obtain WHQL certification for a null driver? I have created an ?inf? file modeled after the form specified in the following MSDN webpage: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/install/hh/install/specinst_3d0749f4-1498-49d5-8e53-804c65f16cd1.xml.asp This ?null? driver can only install with administrative permission. I would like to obtain WHQL signing for my ?inf? file so that it will install unattended. Is this possible? What steps do I need to take to proceed? Tag: I am Beginner Tag: 59046
  - 21
    - Yet Another PNP Notification Question Do I have to do anything special in my USB driver, other than calling IoSetDeviceInterfaceState(), to receive notifications in a user-mode program? I ask because the only notification I seem to be getting is the DBT_DEVNODES_CHANGED notification when I attach or remove my device. My user-mode (MFC) app uses RegisterDeviceNotification() and specifies the guid of my driver-defined interface. Thanks for your help. Mike Tag: I am Beginner Tag: 59043
  - 22
    - Re: IRP Buffer Overflow I tried to change wMaxPacketSize and the size of the transfer data in my firmware but there is no luck. I look into the IRP packet that sends DEVICE_CONTROL to low layer. IRP information: Transfer Type : METHOD_NEITHER Required Access : ANY_ACCESS Function Code :0 There is a structure within the IRP call packet: struct DeviceIoControl ULONG OutputBufferLength = 0x28 ULONG InputBufferLength = 0x18 ULONG IoControlCode = 0x2f0003 PVOID Type3InputBuffer = 0x22e214 In the "Success" case, OutputBufferLength is non-zero. This number can be 0x10, 0x28, 0x80. In the "Buffer Overflow" case, it is 0. Is there any way I can trace what framing parameters that IRP receives? Are they in the device descriptors or in the probe/commit messages between our device and Windows XP? -Albert "Maxim S. Shatskih" <maxim@storagecraft.com> wrote in message news:e8j7gb5CFHA.4020@TK2MSFTNGP14.phx.gbl... > You have provided some wrong allocator framing properties (frame > shorter > then your hardware provides) to the upper layers, so, the upper layers > send you > too short IRPs. > > Then your driver convert the "too short" IRP to URB and sends it to the > USB > stack. USB stack receives the device data, which is longer then the IRP, > and > completes with STATUS_BUFFER_OVERFLOW. > > -- > Maxim Shatskih, Windows DDK MVP > StorageCraft Corporation > maxim@storagecraft.com > http://www.storagecraft.com > > "Albert Fu" <invalidaccount@hotmail.com> wrote in message > news:OG2rVvyCFHA.3504@TK2MSFTNGP12.phx.gbl... >> Hi, >> >> I am new to the Windows video driver and applications. >> >> I am working on a USB video device for Windows XP. >> I can use AMCAP to select my usb device with a black >> screen. I traced the data going into Windows through >> URB layer but I see a lot of buffer overflow (ntstatus code) >> messages coming from the lower layer using IRPTracker. >> It seems to me that video data is lost in the layer below IRP. >> >> I have the following questions: >> 1)Where should I start to look at the buffer overflow problem? >> 2) Where is the place that the video data is putting together as a >> video frame and then passing up to the next layer? Is it in the USB video >> class driver? >> >> Best regards, >> >> Albert >> >> > > Tag: I am Beginner Tag: 59041
  - 23
    - Print Port Monitor - garbled port name Hi all I have recent written a cluster aware Portmonitor that works fine except when adding multiple monitors the port names become garbled, either with none printerble characters or characters from the next port added. Has anyone got a solution to this problem? I have added my enumports function to this post to see if anyone can see what I am doing wrong!!!! Any pointers would be gratefully recived. Cheers J int OMEnumPorts(HANDLE monitor, LPWSTR server_name, DWORD level, LPBYTE ports, DWORD buff_size, LPDWORD buff_needed, LPDWORD no_ports) { HANDLE reg_key_handle; DWORD max_port_name_chars, rc; MONITORREG *monitorreg; MONITORINIT *monitorinit; struct ommonitor_str *ommonitor; DWORD nports; int struct_bytes; int string_bytes; LPWSTR *SourceStrings, *pSourceStrings; WCHAR *strings, reg_subkey[64]; FILETIME ftLastAccess; DWORD subkey_buff_len; PORT_INFO_1 *pPortInfo1; PORT_INFO_2 *pPortInfo2; ommonitor = monitor; monitorinit = ommonitor->monitorinit; monitorreg = ommonitor->monitorinit->pMonitorReg; *buff_needed = 0; wcscpy(reg_subkey, L""); if ((rc = monitorreg->fpOpenKey(monitorinit->hckRegistryRoot, reg_subkey, KEY_READ, &reg_key_handle, monitorinit->hSpooler)) != ERROR_SUCCESS) { fwprintf(ommonitor->lfp, L"Init %d: Failed to open registry at root\n"); fflush(ommonitor->lfp); return FALSE; } // find out how many sub-keys (ports) we've got nports = 0; max_port_name_chars = 0; if ((rc = monitorreg->fpQueryInfoKey(reg_key_handle, &nports, &max_port_name_chars, NULL, NULL, NULL, NULL, NULL, monitorinit->hSpooler)) != ERROR_SUCCESS) { monitorreg->fpCloseKey(reg_key_handle, monitorinit->hSpooler); fwprintf(ommonitor->lfp, L"OMEnumPorts: Failed to read registry info to enumerate ports\n"); fflush(ommonitor->lfp); return FALSE; } fprintf(ommonitor->lfp, "%d ports to enumerate, largest %d\n", nports, max_port_name_chars); fflush(ommonitor->lfp); // are there any ports to enumerate? if (nports == 0) { monitorreg->fpCloseKey(reg_key_handle, monitorinit->hSpooler); fwprintf(ommonitor->lfp, L"OMEnumPorts: No ports defined (key has no sub-keys)\n"); fflush(ommonitor->lfp); return TRUE; } max_port_name_chars++; // each returned structure is a struct with the associated string(s) struct_bytes = 0; string_bytes = 0; if (level == 1) { struct_bytes = sizeof (PORT_INFO_1); string_bytes = max_port_name_chars * sizeof(WCHAR); } else { if (level == 2) { struct_bytes = sizeof(PORT_INFO_2); string_bytes = max_port_name_chars * sizeof(WCHAR); string_bytes += (wcslen(MONITOR_NAME) + 1) * sizeof(WCHAR); string_bytes += (wcslen(MONITOR_PORT_NAME) + 1) * sizeof(WCHAR); } else { fprintf(ommonitor->lfp, "OMEnumPorts: Info level %ld is not supported", level); monitorreg->fpCloseKey(reg_key_handle, monitorinit->hSpooler); return FALSE; } } // get total for all the ports *buff_needed = nports * (struct_bytes + string_bytes); // has the caller allocated enough space? if (buff_size < *buff_needed || ports == NULL) { SetLastError(ERROR_INSUFFICIENT_BUFFER); monitorreg->fpCloseKey(reg_key_handle, monitorinit->hSpooler); return FALSE; } memset(ports, '\0', buff_size); // set ptr to work from end of struct(s) to end of buffer strings = (WCHAR *) (ports + buff_size - (nports * string_bytes)); // copy each port's details over to the supplied buffer // (we're using strings as a pointer) subkey_buff_len = (ports + buff_size) - (byte *) strings; *no_ports = 0; while ((rc = monitorreg->fpEnumKey(reg_key_handle, *no_ports, strings, &subkey_buff_len, &ftLastAccess, monitorinit->hSpooler)) == ERROR_SUCCESS) { // copy info over for requested info level switch (level) { case 1: pPortInfo1 = (PORT_INFO_1 *) ports; pPortInfo1[*no_ports].pName = strings; strings += (wcslen(strings) + sizeof(WCHAR)); break; case 2: pPortInfo2 = (PORT_INFO_2 *) ports; pPortInfo2[*no_ports].pPortName = strings; strings += (wcslen(strings) + sizeof(WCHAR)); wcscpy(strings, MONITOR_NAME); pPortInfo2[*no_ports].pMonitorName = strings; strings += (wcslen(strings) + sizeof(WCHAR)); wcscpy(strings, MONITOR_PORT_NAME); pPortInfo2[*no_ports].pDescription = strings; strings += (wcslen(strings) + sizeof(WCHAR)); pPortInfo2[*no_ports].fPortType = PORT_TYPE_WRITE; pPortInfo2[*no_ports].Reserved = 0; break; default: fprintf(ommonitor->lfp, "OMEnumPorts: Called with unsupported info level %ld\n", level); monitorreg->fpCloseKey(reg_key_handle, monitorinit->hSpooler); return FALSE; break; } // increment count of ports (*no_ports)++; subkey_buff_len = (ports + buff_size) - (byte *) strings; } monitorreg->fpCloseKey(reg_key_handle, monitorinit->hSpooler); return TRUE; } Tag: I am Beginner Tag: 59027
  - 24
    - capture shutdown event from lower filter driver of disk driver I am writing a driver which is a lower filter of disk class driver. My driver needs to save its state to the physical disk when the shutdown occurs. How do I capture the shutdown event in a driver at such a level? I actually tried the IoRegisterShutdownNotification() and tried to handle the IRP_MJ_SHUTDOWN. Although I can successfully registered for this event, I couldn't receive the IRP_MJ_SHUTDOWN irp. I also tried the SRB_FUNCTION_SHUTDOWN. although I can capture it I don't know what's the difference between this command and IRP_MJ_SHUTDOWN irp and whether it is save for my drive to conduct some block level write when handling SRB_FUNCTION_SHUTDOWN. thanks for any coming help Paris Tag: I am Beginner Tag: 59016
  - 25
    - Can we load a .sys file from another .sys file Hi, Can we load a ".sys" file from kernal mode driver. We have one driver with .sys extension, I am trying to write some other driver with more functionalities. In order to reduce reusability I like to load the previous .sys driver and use some of its functionalities. P.S : I know that we can load ".dl"l but I don't know how to load .sys and use its functionalities. Thanks in advance. Thanks Santhosh. Tag: I am Beginner Tag: 59014

I am trying to build the a sample driver but i am getting these problem

ntry.obj : error LNK2001: unresolved external symbol
__imp__IoCreateSymbolicLink
entry.obj : error LNK2001: unresolved external symbol __imp__IoCreateDevice
entry.obj : error LNK2001: unresolved external symbol __imp__IoDeleteDevice
entry.obj : error LNK2001: unresolved external symbol
__imp__IoDeleteSymbolicLink
functions.obj : error LNK2001: unresolved external symbol
__imp__MmMapLockedPagesSpecifyCache
LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
release\driver.sys : fatal error LNK1120: 6 unresolved externals
Error executing link.exe.]

though through Depends i have noticed these symbol are defined in
ntoskrnl.lib, i have includes that in project but facing same problem again
and agin.

could any buddy help me to build my first driver

thanks

--

With Regards
Alok Gupta
Visit me at http://alok.bizhat.com

"I think this will Help"

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Re: I am Beginner by Don

Don
Wed Feb 16 07:20:44 CST 2005

It looks like you are either trying to build things without using the DDK
build environement, or you have somehow trashed the environment. The
reference to main, indicates the build is using inappropriate libraries.

Are you using the latest DDK, and choosing a "Build Environment" from the
start menu and building that way?

--
Don Burn (MVP, Windows DDK)
Windows 2k/XP/2k3 Filesystem and Driver Consulting
Remove StopSpam from the email to reply

"thatsalok" <thatsalok@NO_gmail.com_I_DONT_NEED_SPAM> wrote in message
news:eGZBE5BFFHA.2232@TK2MSFTNGP14.phx.gbl...
>I am trying to build the a sample driver but i am getting these problem
>
> ntry.obj : error LNK2001: unresolved external symbol
> __imp__IoCreateSymbolicLink
> entry.obj : error LNK2001: unresolved external symbol
> __imp__IoCreateDevice
> entry.obj : error LNK2001: unresolved external symbol
> __imp__IoDeleteDevice
> entry.obj : error LNK2001: unresolved external symbol
> __imp__IoDeleteSymbolicLink
> functions.obj : error LNK2001: unresolved external symbol
> __imp__MmMapLockedPagesSpecifyCache
> LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
> release\driver.sys : fatal error LNK1120: 6 unresolved externals
> Error executing link.exe.]
>
> though through Depends i have noticed these symbol are defined in
> ntoskrnl.lib, i have includes that in project but facing same problem
> again
> and agin.
>
> could any buddy help me to build my first driver
>
> thanks
>
> --
>
> With Regards
> Alok Gupta
> Visit me at http://alok.bizhat.com
>
> "I think this will Help"
>
>

Top