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- Previous
  - 1
    - Originator of an IRP Hi all, is there a way to identify the originator of a kernel-mode initiated IRP. Regards, Andreas Winter. Tag: multicast Tag: 59059
  - 2
    - 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: multicast Tag: 59057
  - 3
    - 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: multicast Tag: 59049
  - 4
    - 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: multicast Tag: 59046
  - 5
    - 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: multicast Tag: 59043
  - 6
    - 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: multicast Tag: 59041
  - 7
    - 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: multicast Tag: 59027
  - 8
    - 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: multicast Tag: 59016
  - 9
    - 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: multicast Tag: 59014
  - 10
    - how to detect media connect/disconnect asynchronously at NDIS level I am reading data directly from a network interface using a modified NDISPROT protocol driver. When somebody pulls the network cable the ProtocolStatus routine triggers within the driver. From the user level I can actively poll the miniport using OID_GEN_MEDIA_CONNECT_STATUS, but is there a way to get notified asynchronously? If not, is checking the miniport via the OID the best way or should I implement an IoControl in NDISPROT instead? Thanks for your help! Tag: multicast Tag: 59012
  - 11
    - How to Virtual Serial Port Driver in Win98SE? Hi, Can anyone suggest me on how to implement virtual serial port driver in 98SE? I heard about ccport.sys and found out in the news group that a bit buggy. Is there anyother way to implement virtual serial port in win98SE? I'm trying to WDM virtual serial port driver into 98SE. Or should I write a new Vxd virtual serial port driver to interact with WDM USB driver? thank you very much, Bandu Tag: multicast Tag: 59005
  - 12
    - this is regarding rebooting system after driver install or uninstall hi all, i am very new to the windows device driver development. now i am learning how to write a driver . in this process i have created a sample driver having only these functions i.e DriverEntry , AddDevice and Unload. so with this code i am able to install the driver. now my question is every time i install driver or uninstall driver ,system is asking for reboot.so,can any one give me a solution such that i can avoid rebooting the system and still be able to install/uninstall driver. what i want is i don't want to restart my system once driver is installed or uninstalled.my OS is WIN2000 and the DDK i am using is WINDDK .so ,tell me what all changes i need to make. the code i have written is as follows: #include <wdm.h> NTSTATUS myAddDevice(IN PDRIVER_OBJECT DriverObject, IN PDEVICE_OBJECT pdo); VOID DriverUnload(IN PDRIVER_OBJECT fdo) ///Driver Entery NTSTATUS DriverEntry( IN PDRIVER_OBJECT DriverObject, IN PUNICODE_STRING RegistryPath ) { DbgPrint ("Drv: Entered Driver Entry\n"); // Initialize Function Pointers DriverObject->DriverUnload =3D DriverUnload; DriverObject->DriverExtension->AddDevice =3D myAddDevice; return STATUS_SUCCESS; } // DriverUnload VOID DriverUnload(IN PDRIVER_OBJECT DriverObject) { DbgPrint ("Drv: Entered Driver unload\n"); } // DriverUnload NTSTATUS myAddDevice(IN PDRIVER_OBJECT DriverObject, IN PDEVICE_OBJECT DeviceObject) { NTSTATUS status; UNICODE_STRING ntDeviceName; PDEVICE_OBJECT DeviceObject1 =3D NULL; // Create a functional device object to represent the hardware we're managing. DbgPrint ("Drv: Entered Add Device\n"); RtlInitUnicodeString(&ntDeviceName, L"\\Device\\myDummy"); status =3D IoCreateDevice(DriverObject, 1, &ntDeviceName, FILE_DEVICE_UNKNOWN, 0, FALSE, &DeviceObject1 ); if(!NT_SUCCESS(status)) DbgPrint ("Drv: IoCreateDevice() fails %x \n",status); else DbgPrint ("Drv: IoCreateDevice() success\n"); return status;} and the .inf file i am using as follows: ; Driver.inf ; ; Installation file (.inf) for the Example Driver to Test device. ; ; (c) Copyright 2005 ESN Tech ; [Version] Signature=3D"$Windows NT$" Provider=3D%ESN% ClassGUID=3D{4d36e978-e325-11ce-bfc1-08002be10213} Class=3D%ESN% CatalogFile=3DDriver.cat DriverVer=3D02/08/2005 [DestinationDirs] DefaultDestDir =3D 12 ; ; Driver information ; [Manufacturer] %ESN% =3D ESN.Mfg [ESN.Mfg] %ESN.DeviceDesc0% =3D Driver, ; ; General installation section ; [Driver] ; ; File sections ; ; ; Service Installation ; [Driver.Services] AddService =3D Driver, 0x00000002 , Driver_Service_Inst, Driver_EventLog_Inst [Driver_Service_Inst] ServiceType =3D 1 ; SERVICE_KERNEL_DRIVER StartType =3D 3 ; SERVICE_DEMAND_START ErrorControl =3D 0 ; SERVICE_ERROR_IGNORE LoadOrderGroup =3D Pointer Port ServiceBinary =3D %12%\Driver.sys [Driver_EventLog_Inst] AddReg =3D Driver_EventLog_AddReg [Driver_EventLog_AddReg] HKR,,EventMessageFile,0x00020000,"%SystemRoot%\System32\IoLo=ADgMsg.dll;%Sy= stemRoot%\System32\drivers\Driver.sys" HKR,,TypesSupported,0x00010001,7 [ClassInstall32] AddReg=3DESN_addreg [ESN_addreg] HKR,,,,%ESN% HKR,,Installer32,,"Desk.Cpl,DisplayClassInstaller" HKR,,Icon,,"-1" ; ; Source file information ; [SourceDisksNames.x86] 1 =3D %DiskId1%,,,"" [SourceDisksFiles] ; Files for disk ESN Tech Installation Disk #1 (Ports) Driver.sys =3D 1,objchk_wxp_x86\i386, [Driver] CopyFil...@Driver.sys [Strings] ; ; Non-Localizable Strings ; REG_SZ =3D 0x00000000 REG_MULTI_SZ =3D 0x00010000 REG_EXPAND_SZ =3D 0x00020000 REG_BINARY =3D 0x00000001 REG_DWORD =3D 0x00010001 SERVICEROOT =3D "System\CurrentControlSet\Services" ; ; Localizable Strings ; ESN.DeviceDesc0 =3D "Example Driver to Test" DiskId1 =3D "ESN Tech Installation Disk #1 (ESN)" ESN =3D "ESN Tech" so i am expecting to provide me all the options that are available. thanks for your replay=20 regards,=20 bharati. Tag: multicast Tag: 59003
  - 13
    - AVstream Clock Hi, I have written a AVStream driver which exposes a Playback Filter and acts like a renderer. This filter has a Video In pin for rendering the Video. This Pin is supposed to support a clock to return the current Stream time. I set the flag KSPIN_FLAG_IMPLEMENT_CLOCK in the KSPIN_DESCRIPTOR_EX for this Pin. And declared a KSCLOCK_DISPATCH structure and included in the KSPIN_DISPATCH structure for this pin. My KSCLOCK_DISPATCH is like this. const KSCLOCK_DISPATCH VideoInClockDispatch = { NULL, NULL, (PFNKSPINCORRELATEDTIME)VideoInCorrelatedTime, (PFNKSPINRESOLUTION)VideoInResolution }; The function VideoInCorrelatedTime is defined like this LONGLONG VideoInCorrelatedTime(IN PKSPIN Pin, OUT PLONGLONG SystemTime); Now when I render the Pin, the VideoInCorrelatedTime gets called. But the parameter Pin is coming as some invalid Pointer. And after returning from this funtion, I get a Page Fault in some unknown location ( not in driver ). Could anyone let me know what could be going wrong. What is the exact steps to support a clock on a Pin ? Thanks a Lot. Arun Tag: multicast Tag: 59002
  - 14
    - 64 bit SDK/DDK Will NTDDK and 2KDDK (for kernel and user mode) still work for 64-bit? Or should I use Windows 2003 Server DDK for 64-bit? Tag: multicast Tag: 58999
  - 15
    - 1394 talk/listen DMA buffer alignment requirements? Hello. Since I could not find any definitive answer in the archive or the docs, I'll ask here: for the cases of 1394 talk using equal sized packets and listen (both using packet based DMA, i.e. RESOURCE_USE_PACKET_BASED), are there any restrictions on alignment, size and/or straddling a page boundary? I found some mention of this in the DDK, but only for the case of DESCRIPTOR_HEADER_SCATTER_GATHER (which I stopped using). Are there any descriptor buffer alignment/size/page_boundary_straddling restrictions for the more general cases (i.e. no DESCRIPTOR_HEADER_SCATTER_GATHER and no RESOURCE_VARIABLE_ISOCH_PAYLOAD for talk, plain listen, both packet based)? thanks for your time, Philip Lukidis Tag: multicast Tag: 58992
  - 16
    - USB Drive / Key's drive letter assignment I apologize in advance if I am posting this in the wrong newsgroup but I cannot seem to find the appropriate one for this question. I am trying to figure out a way I can create a script that will change the default drive letter a USB drive / key device grabs when it is initially inserted. We have over 1500 machines and cannot go to each one of them for each USB device and manually assign a letter. If we leave windows to it's own "devices" it will assign a letter to the USB drive that is already mapped to a network resource. Unfortunately in our environment it is not possible to change the network drive mappings. I have done some research on this and haven't come up with anything that isn't a very dirty fix to this problem. If anyone has any insight or solution it would be greatly appreciated. Thank you COHDNP... Tag: multicast Tag: 58982
  - 17
    - How to remove the INF files after uninstall the passthru IM driver I have a question about the passthru IM driver installation. After uninstall the pssthru driver, the two INF files (copied and renamed to OEM*.inf under c:\windows\inf) are not removed. My question is: What's the proper way to delete these two files when uninstall? I could do a search in the c:\windows\inf directory, find the files and delete them manually, but it doesn't seem to be the proper way. Thanks for your help, Jinhai Tag: multicast Tag: 58979
  - 18
    - NDIS VMINI MiniportSend() WindowsCE .NET I produced the NDIS vmini example of the platform builder using emVC++ with some modifications and installed the driver on the target PC. The VMiniMSend() function will be called from the NDIS protocol driver to send some data. Question - How can I access the IP parameters (e.g. sent port) and the actual data from the input parameters NDIS_HANDLE MiniportAdapterContext PNDIS_PACKET packet provided by the NDIS protocol driver? Tag: multicast Tag: 58977
  - 19
    - printing ip addresses Hi all, i am trying to print out IP addresses from IP header structures. I know that they in format w.x.y.z were each represents one byte. But Ip_src and Ip_dst are Ulong and a subscript requires a pointer. Any help pls. abiola. Tag: multicast Tag: 58975
  - 20
    - OT: Books for independent consultant? When people asking for books on driver programming, the answer would be Oney's WDM book. Can anyone here suggest some good books for freelance programmer? I found some of them on the web but don't know which one is really good for dummy. Thanks, Calvin Tag: multicast Tag: 58972
  - 21
    - Linking HidD_GetPreparsedData Hello, I am writing a user-mode application that try to read the HID descriptors from HID devices. I have 2 questions : - Is it possible to read the data in a "raw mode" (i.e. I give a buffer and it is filled with the full descriptors) - I try to get the info with the HidD_* functions (HidD_GetPreparsedData etc...) so I added hid.lib to the linked libraries. But the compiler ignores it and displays : <code> error LNK2001: unresolved external symbol "unsigned char __stdcall HidD_GetPreparsedData(void *,struct _HIDP_PREPARSED_DATA * *)" </code> Thanks ! Eric. Tag: multicast Tag: 58970
  - 22
    - How to create a softice like startup menu from Boot Driver? Hello How can i get user input and display strings from a Boot Driver like softice does while windows starts ? All the methods i saw in this list work for System drivers - drivers that were loaded after the windows keyboard driver and 8042 port driver were loaded. When i tried to use ZwCreateFile to access Device\KeyboardClass0, it again worked only when i loaded the driver as system and not as boot. how do the guys from numega does that ? thanks for any help. Tag: multicast Tag: 58961
  - 23
    - Status monitor query Hi, I am writing a printer driver and status monitor on Windows-XP. I tried to get the printer status through IBidiSpl and IBidiRequest Bidi interfaces. The BindDevice function is failing and the error message says "Printer name is invalid", but when I call OpenPrinter API with the same printer name, it returns the printer handle successfully. If anybody have any idea why BindDevice API call fails, please let me know. Thanks, Nitin Tag: multicast Tag: 58958
  - 24
    - Making a device read only We have discovered that under Win2K (and WinXP+SP1) NTFS becomes unstable if the media the volume is on is silently discarding write requests. After a short while both Win2K and WinXP will blue screen. Unfortunately we need to find a solution to this. Redesigning the hardware side would be expensive and time consuming so we are also looking into a software solution. Presumably this would require us to write a device driver that could fit into the storage driver stack at some point. The simplest way would probably be for us to monitor SCSI commands and modify the result of a Mode Sense so that it indicated that the media was write protected. None of our development team have looked at working with the DDK (we are all application developers) and from my investigations it looks like such a project would be a very big undertaking - probably as big as the hardware solution. Not a lot of code, perhaps, but a steep learning curve. So I guess my question is:Does this sound like a major software project or is there some other solution we can go for? At present just being able to turn off plug-and-play volume mounting would suffice. We only need SCSI pass through access to the write protected volume. Tag: multicast Tag: 58953
  - 25
    - IRQ, device driver development. I'm starting developing a device driver, and have some questions: 1. How can I get address from which IRQ was invoked?? 2. If I know such address, how can I get binary file (process id or something which helps me to identify binary file)which was mapped for this particular address?? Best Darek Tag: multicast Tag: 58951
- Next
  - 1
    - Disabling windows file protection Hi, I was trying to replace a system file( classpnp.sys) in windows/system32/drivers directory. But I am not able to , It gets replaced with the system file every time I replace it. I tried disabling windows file protection by setting SFCDisable in the registry to ffffff9d ( Referred the link http://www.winguides.com/registry/display.php/790/ ). But even then I am not able to replace the file. The system has the Win2K3 OS. What can be the problem? Thanks in Advance. Sareena. Tag: multicast Tag: 58950
  - 2
    - How to handle DIF_NEWDEVCEWIZARD_PRESELECT? Hi to all, I took sample of toaster from DDK as a prototype Class Installer. My installer supports only DIF_ADDPROPERTYPAGE_ADVANCED request. It returns ERROR_DI_DO_DEFAULT for all rest DIF codes. Unfortunetly, it's not enough for correct work Hardware Wizard and Device Manager. If I delete Installer32 registry entry Hardware Wizard uses manually installation scenario. If I add Installer32 registry entry my installer receives DIF_NEWDEVCEWIZARD_PRESELECT request. It's happened "After the user has selected the class for the device but before Setup displays the "Select a Device Driver" page." After installer returns ERROR_DI_DO_DEFAULT, hdwdiz.cpl crashes. What is the reason of this behavior Hardware Wizard? Thank in advance Andrei Souvalski Tag: multicast Tag: 58946
  - 3
    - How does a laptop's Fn key work? I'm trying to write a program that captures when a user presses a laptop's Fn key and another key simultaneously, ie Fn+F6. However, I've been unable to figure out how to do this. I've tried using a keyboard hook then checking for keyboard events and GetKeyState() to figure out if the key combination has been pressed. To no avail. When the Fn key and another key are pressed together, no keyboard event is triggered. Could someone be so kind to explain how the Fn key works and how it works when it is pressed simultaneously with another key? Can anyone help me figure out how to do this? Thanks in advance. Tag: multicast Tag: 58937
  - 4
    - Passthru Installation Popups On installing Passthru i get the driver sign popups. On some machine i see "X" popups the 1st time and on the same machine i see "Y" popups the next time. The number of popups vary from machine to machine also. On what does the number of popups depend ? ...Mani PS: I know that to avoid popups one must get the driver signed :) Tag: multicast Tag: 58933
  - 5
    - IoAttachDeviceToDeviceStack related Can anyone clarify the foll paragraph from DDK under IoAttachDeviceToDeviceStack: A driver writer must take care to call this routine before any drivers that must layer on top of their driver. IoAttachDeviceToDeviceStack attaches SourceDevice to the highest device object currently layered in the chain and has no way to determine whether drivers are being layered in the correct order. ...Mani Tag: multicast Tag: 58932
  - 6
    - NDIS IM driver DriverEntry called repeatedly with Window 2003 We have developed an NDIS intermedoate driver and also notify object to support our driver. In build prior to 1289 ============== When the first virtual adapter is created the Driver Entry is called. Thereafter the Driver Entry is not called even if more vritual adapter are created. Build 1289 and 1421 ============= The driver entry is being called when each virtual component is being created. With reference to notify object after 'ApplyRegistryChanges' and before 'ApplyPnpChanges' the IM driver gets triggered. For some reason with build 1289 and 1421 the halt routine is being called which triggers the driver being unloaded even though there are some VLAN already on the adapter. Thereafter DriverEntry is being called once again. This behaviour is not seen in earlier builds of Windows 2003 MUX behaviour ========== I observed the same behaviour even with the mux sample in DDK. Please advice as what is the change due to which the halt is being called in 1289 and above causing the driver Entry being called with each VLAN creation. - Sriram. Tag: multicast Tag: 58924
  - 7
    - TDI driver event queueing Hello, I can save IRP requests, and complete/cancel them later successfully. But I want to queue events, set by TDI_SET_EVENT_HANDLER as well. Could anybody clarify how this can be done? Thanks! Best regards, Serge. Tag: multicast Tag: 58919
  - 8
    - printer driver and nonsquare pixels Hello, I have a monolithic usermode printer driver under development and I have two questions: 1.) Is there any way to inform GDI that the device has nonsquare pixels? 2.) Will this make any difference for calls to EngTextOut()? Thanks. -- Matt Kane mkane@zebra.orange.com minus fruit Tag: multicast Tag: 58913
  - 9
    - Unidrv and CommandCallback inconsistencies Often times, when implementing a callback or other custom functionality in UniDrv, UniDrv's overall behavior changes rather than simply calling my callback or running my function. The help implies that the CallBack is instead of sending the "*Cmd" command. Is there any way to stop this?? It's hard to code this way :| Example 1: CommandCallback for CmdYMoveAbsolute Result: UniDrv calls my callback to send Y coordinates for EVERY scanline (even "*b0W") as if "*CursorYAfterSendBlockData" was set to NO_MOVE and not AUTO_INCREMENT. Replace the CallbackID with a "*Cmd: " string and it works as documented. Example 2: Implement IPrintOemUni::FilterGraphics Result: UniDrv no longer compresses the scan line data blocks as if there weren't any compression entries defined (including OEMCompression). Wouldn't I simply not include the compression entries if I didn't want the data compressed or wanted to do it myself? Can someone PLEASE help this make sense? CodeSkunk Sr. Propeller Head Tag: multicast Tag: 58912
  - 10
    - Unidrv and CommandCallback inconsistencies Often times, when implementing a callback or other custom functionality in UniDrv, UniDrv's overall behavior changes rather than simply calling my callback or running my function. The help implies that the CallBack is instead of sending the "*Cmd" command. Is there any way to stop this?? It's hard to code this way :| Example 1: CommandCallback for CmdYMoveAbsolute Result: UniDrv calls my callback to send Y coordinates for EVERY scanline (even "*b0W") as if "*CursorYAfterSendBlockData" was set to NO_MOVE and not AUTO_INCREMENT. Replace the CallbackID with a "*Cmd: " string and it works as documented. Example 2: Implement IPrintOemUni::FilterGraphics Result: UniDrv no longer compresses the scan line data blocks as if there weren't any compression entries defined (including OEMCompression). Wouldn't I simply not include the compression entries if I didn't want the data compressed or wanted to do it myself? Can someone PLEASE help this make sense? CodeSkunk Sr. Propeller Head Tag: multicast Tag: 58910
  - 11
    - Unattended null driver installation I have an interesting device driver installation problem that I can't seem to make any headway on. Basically I am trying to make it so a normal user (non-administrator) can install a null driver. My company makes custom PCI hardware. We are moving to XP and have a legacy non-plug and play driver that runs our cards. This driver works fine. However, XP still thinks that each of our cards needs a driver installed and pops up the "Found New Hardware" wizard when the system comes up. I have come across the solution of a null driver. Apparently this is a .inf file that is just a placeholder for the legacy devices. Putting this inf file into the system32\inf directory allows the system to install the null devices correclty. I have created an .inf file like the following: --------------------------------------- [Version] Signature="$Windows NT$" Class=Unknown ClassGUID={4d36e97e-e325-11ce-bfc1-08002be10318} Provider=%Company% DriverVer=02/08/2005,3.72 ; Install the device class [ClassInstall32] AddReg=ClassAddReg [ClassAddReg] HKR,,,,%ClassName% HKR,,Icon,,"-11" HKR,,SilentInstall,,1 HKR,,NoInstallClass,,1 ; List of devices [Manufacturer] %Company%=Company [Company] %Device1%=NullInstallSection, PCI\ . . . %Device2%=NullInstallSection, PCI\ . . . [NullInstallSection] ; Nothing needed here [NullInstallSection.Services] AddService = ,2 ;no service name [Strings] ClassName="Devices" Device1="Device1" Device2="Device2" ------------------------------------------- Here's where I run into my problem. Since the driver isn't WHQL certified, XP won't install the null devices without displaying the "Found New Hardware" wizard. This is fine as an administrator, but we have machines in the field running as a normal user. As a normal user XP pops up an error that says, "You must be a member of the Administrators group on this computer to install this hardware." In my research I've found that a normal user can install drivers if they are signed correctly. However, I'm don't think that WHQL will sign a null driver. So, I seem to be stuck. Is there any way to get around this problem? Is there a way to allow normal users the rights to install unsigned drivers? Can I somehow get a null driver signed? I would be very appreciative of any feedback. Andrew Webber Tag: multicast Tag: 58909
  - 12
    - Printer driver device fonts bold/italic/underline Hi, I have been updating a previously written monolithic (non-minidriver) printer driver. The printer has its own fonts that it can render as bold, italic, and underline. Do I have to implement an IFIMETRIC structure (via DrvQueryFont) for every possible combination of device font style? For example, lets say the printer has a 16 CPI font and that font (via printer commands) can be represented in bold, underlined, italics and a combination of all 3. So, there can be: 16 CPI Normal, 16 CPI Bold, 16 CPI Italic, 16 CPI Bold AND Italic, etc. Do have to set up this many IFIMETRIC structures that only have the fsSelection member as a difference? Once you add up other printer fonts (14 CPI, 12 CPI, etc) there ends up being an astronomical amount of fonts. There has to be a way to just have one a IFIMETRIC structure for the 16 CPI font and have DrvTextOut receive some indication that the font needs to be bold, italic or underlined somewhere. Or am I dreaming? Thanks! Tag: multicast Tag: 58905
  - 13
    - I need suggestion on how to implement a barcode reader for win2k I have an old barcode reader that can connect to a serial port on my windows 2k computer. I would like to scan any barcode and it would appear on the console where ever the application is; sort of like a keyboard. How do I go about doing this. I got the MSDN DDK subscription but as read thru this forum I still am undecided of what to do for what I want. Can someone suggest something please? Thank you. Tag: multicast Tag: 58904
  - 14
    - Is the Driver Verifier available for Embedded XP? I would like to use the Driver Verifier to test a device driver we have developed for Embedded XP. Is this possible, or will I have to move the driver to XP Professional to run the Driver Verifier? Tag: multicast Tag: 58898
  - 15
    - Unhandled Exception in ExpWorkerThread I have a very intermittent (4 times in one month) BSOD that tracks back to ExpWorkerThread calling ObpProcessRemoveObjectQueue and hitting an exception at address 00000098 [Eax+98]. How can I find out what ExpWorkerThread thought it should be doing ? Tag: multicast Tag: 58889
  - 16
    - Help, i wanna look at routing protocol development I have doubt on what to use to develop a routing protocol for wireless LAN. I wanna loop for routing protocol development, write an algorithm for wireless LAN card let say AODV(an ad hoc routing protocol RFC 3561 so that it behaves like what i specified. i wanna write the driver(is tat consider as driver?) for win XP, what should i look at? Do i need to look at DDR? have any reference, tutorial or guildeline available? Tag: multicast Tag: 58887
  - 17
    - ACPI Firmware access Hi All, My question is, How we can access the ACPI Firmware in windows XP? Is there any ACPI Interface supported by Windows to access all the features of the ACPI firmware ( like ACPI table and object) Thanks and Reagrds, Sachin Tag: multicast Tag: 58886
  - 18
    - Executable Memory in a Driver Is there any way to allocate executable memory in the kernel? The docs do not indicate whether the ExAllocateXxx() APIs will do this. From my understanding, they aren't supposed to, and it will BSOD on XP SP2. I am assuming the answer to my question is, "No, why would anyone want to allocate executable memory in the kernel?" but I am hoping otherwise. TIA -Matt Tag: multicast Tag: 58881
  - 19
    - How Disk.sys gets loaded after USBSTOR.sys for USB Mass Storage De Hi, I have a Sony USB Memory Stick Walkman. I have developed my own USBSTOR.sys using DDK USB Bulk driver. I can read Config/interface info. How does Disk.sys gets loaded after USBSTOR.sys? I mean How this GenDisk id is generated? Does USBSTOR.sys need to create PDO for Disk.sys? Does USBSTOR uses IRP_MN_QUERY_RELATIONS (BusRelations) to create PDO? Tag: multicast Tag: 58880
  - 20
    - NDIS and WMI methods So, is there any way to expose custom WMI methods from NDIS miniport ? I'm looking to pass *both* input and output data in one call. --PA Tag: multicast Tag: 58874
  - 21
    - Accessing Printer Device dependent information Hello, I apologize if this is not the place for this questions, and I also apologize for the fact that it may sound uninformed, because, well, it is. I am writing an application to set default printer settings prior to printing pdf documents through Adobe. I am using the WinAPI functions from WinSpool.drv to get and set the properties. The DEVMODE structure works great for the device independent information, but I need the device dependent information as well. Stapling can be used as an example. The DocumentProperties API call returns the DEVMODE structure along with the device dependent (apparently called private date according to a webcast I just read) from the device. Microsoft says that you are not supposed to touch the driverExtra information with DEVMODE, but should use the UNIDRV instead. Are there any examples of this? Does anyone have any examples of how to change any default printer settings (like stapling) programmatically? I appreciate an insight into this. Thanks! Chris Tag: multicast Tag: 58871
  - 22
    - reading from payload from ndis network packets. Hi all, I am trying to read payload content from NDIS packets. I have problems with the offset option, my code is this struct xx{ Dword m_data[3072]; } xx; xx payload; Fltreadonpacket{ packet, payload.m_data, sizeof( tcp_hdr), sizeof(struct ether_hdr)+sizeof(struct ip_hdr)+size(1024), // i tried size(th_off) instead of size(1024) but it will not accept it. &numberofbytesread}; for (int i=0; i<16;i++) { DbgPrint( payload.m_Data[i]); // printing rubbish at this point } any help will do. thanks. Tag: multicast Tag: 58854
  - 23
    - DDK and spaces in path? Hi, After converting our driver product build environment from VS.NET 2003 (which compiler is not supported for drivers) into a DDK BUILD project (using a makefile project and ddkbuild.bat), I notice that all our build servers and most of our development stations no longer can build this driver, due to spaces in the build path. This post is suggesting a workaround to build paths with spaces http://msdn.microsoft.com/newsgroups/managed/default.aspx?dg=microsoft.public.development.device.drivers&mid=7a7b1ddb-8d6a-4502-86cc-609ad8870cb3&sloc=en-us Our driver is not using any Java. Which is safer? 1. Remove the $(MAKEDIR) as suggested in the above posting, or 2. Comment out this entire call to jvc (2 lines) as suggested in the above posting Also, can this harm our C/C++ driver? Is our DDK build environment still "supported" with this change? Thanks, / Hannes. Tag: multicast Tag: 58848
  - 24
    - my debugger is soooooo slow Can anybody help me out with this really anoying issue? I am using WinDbg 6.2.00.13.0 and at one point the debugging was really fun since everything was going in almost realtime. So now suddenly the debugger "thinks" about every step for minutes it seems and it really stinks to work with it. I have the symbol path set first to the Web address for symbols and then to a local directory. What is the resolution for this issue? Anybody any ideas? \Manfred Tag: multicast Tag: 58847
  - 25
    - File System Access to Proprietary Device We have proprietary device that can be accessed via various networks using a proprietary communication protocol. Some of these devices expose some high level file I/O functions, e.g., Find First File, Find Next File, File Read, File Write, Create, Delete, etc. What we would like is to expose the contents of these devices on a Windows client in a manner similar to a mapped drive or a USB memory/jump drive. Any direction or advice on how best to do this would be greatly appreciated. Thanks. Tag: multicast Tag: 58845

would ndis issue set OID_802_3_MULTICAST_LIST even if a host join as a
SEND_ONLY MEMBER?

thanks
sophia

Re: multicast by stewo68

stewo68
Mon Feb 14 06:18:00 CST 2005

Sophia <Sophia@discussions.microsoft.com> wrote in message news:<123E6AD2-F58E-439E-A3A2-1989AF5C262C@microsoft.com>...
> would ndis issue set OID_802_3_MULTICAST_LIST even if a host join as a
> SEND_ONLY MEMBER?

Is this related to the other poster's ("Venkat") question on 13-Feb-2005?

Not sure what you are talking about and what your concerns are.

Stephan

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