How to Virtual Serial Port Driver in Win98SE?

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  - 1
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 59003
  - 2
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 59002
  - 3
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58999
  - 4
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58992
  - 5
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58982
  - 6
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58979
  - 7
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58977
  - 8
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58975
  - 9
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58972
  - 10
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58970
  - 11
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58961
  - 12
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58958
  - 13
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58953
  - 14
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58951
  - 15
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58950
  - 16
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58946
  - 17
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58937
  - 18
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58933
  - 19
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58932
  - 20
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58924
  - 21
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58919
  - 22
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58913
  - 23
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58912
  - 24
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58910
  - 25
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58909
- Next
  - 1
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58905
  - 2
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58904
  - 3
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58898
  - 4
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58889
  - 5
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58887
  - 6
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58886
  - 7
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58881
  - 8
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58880
  - 9
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58874
  - 10
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58871
  - 11
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58854
  - 12
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58848
  - 13
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58847
  - 14
    - 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: How to Virtual Serial Port Driver in Win98SE? Tag: 58845
  - 15
    - Packet Queuing in MPSendPacket() function Hi, I'm writing a Ndis Intermediate Driver derived from the Extended Passthru Sample. I want to copy some outgoing packets to an application by completing a pending IOCTL-Request. But what to do if there isn't any pending IOCTL-request? I know, that I should queue the packet for dealing with it later, but I don't know what is the usual way dealing with this situation. I read something about setting packet status to NDIS_STATUS_RESOURCES, but this seams to be too easy (and the wrong way I think :-)) Thank you for your advice, Christian Beckel P.S.: Another question: When the packets return from user mode, I think I should implement a new function which builds a new NDIS-Packet and sends it down to the NIC. But where do I get important information like the OOB data? In MPSendPacket, I can read this information from the old packet. Tag: How to Virtual Serial Port Driver in Win98SE? Tag: 58843
  - 16
    - x64 and DDK and WIA Hi, I have installed the 2003 DDK. And want to start work porting a WIA Driver. Firstly I tried building the example code Wiascnr under the IA64 free enviroment. This created Complilation errors d:\winddk\3790\inc\crt\string.h(59) : error C2371: 'size_t' : redefinition; diff erent basic types my own code produces simialar errors... Is the example code supposed to compile under IA64? If not does anyone know what must be changed to make the example code to compile.... Thanks Andy M Tag: How to Virtual Serial Port Driver in Win98SE? Tag: 58838
  - 17
    - unhiding hidden partition on the fly Several PCs I work with every day have hidden FAT partitions that are used for booting into DOS at times. Since Windows does not see the hidden partition there is no direct way of accessing the data. Currently I am using a user mode tool that directly accesses the hard drive and does all the FAT interpretation by itself so I can read and write files to the partition. I was wondering if it was possible to write a filter driver that would reinterpret the hidden partition into a 'normal' partition and also make it removable, so I could mount the partition on the fly and rely on Windows file system code instead of doing it myself. Would such a driver be a upper storage filter driver of a file system driver? Also would I be able to mount/unmount the partition without rebooting the system? Tag: How to Virtual Serial Port Driver in Win98SE? Tag: 58836
  - 18
    - IoQueueWorkItem() in WinXP SP2 Hello! I wrote some disk filter driver for Windows XP. I use IoQueueWorkItem() and got problem. Sometimes i see in dbg output, that work item is queued, but workitem routine is not called. Commonly i see in debug output (view with DbgView): >Work item queued >Worker begin >Worker end >Work item queued >Worker begin >Worker end and so on. But sometimes (very rare) i see only first string : >Work item queued And sistem goes frozen :( Does you have any idea that is happens? Help! VOID TimerBlockOffRoutine( PKDPC Dpc, PVOID Context, PVOID Junk1, PVOID Junk2 ) { PDEVICE_OBJECT pDev = (PDEVICE_OBJECT) Context; PDEVICE_EXTENSION pdx = (PDEVICE_EXTENSION) pDev->DeviceExtension; PIO_WORKITEM workItem; ... workItem = IoAllocateWorkItem(pDev); if (NULL != workItem) { IoAcquireRemoveLock(&pdx->RemoveLock, pdx); IoQueueWorkItem(workItem, TimerBlockOffRoutineWorker, DelayedWorkQueue, workItem); DbgPrint("Work item queued\n"); } ... } VOID TimerBlockOffRoutineWorker( IN PDEVICE_OBJECT DeviceObject, IN PVOID Context ) { PDEVICE_EXTENSION pdx = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension; PIO_WORKITEM pIoWorkItem = (PIO_WORKITEM) Context; DbgPrint("Worker begin\n"); IoFreeWorkItem(pIoWorkItem); KeEnterCriticalRegion(); ExAcquireResourceExclusiveLite(&pdx->DeviceExtensionResource, TRUE); ... ExReleaseResourceLite(&pdx->DeviceExtensionResource); KeLeaveCriticalRegion(); IoReleaseRemoveLock(&pdx->RemoveLock, pdx); DbgPrint("Worker end\n"); } Tag: How to Virtual Serial Port Driver in Win98SE? Tag: 58835
  - 19
    - How to read HID Descriptor using URBs (in a driver) Hi All, I'm writing a HID Miniport to transform a USB device that has 2 HID interfaces into a single HID device. To do this I'm sending raw URBs down to the device in response to IOCTL_HID calls from above. I'm basing my driver on Walt's HIDFAKE sample together with code from his USBINT sample (startup code). So far so good - I can read the config descriptor, interface descriptors and endpoint descriptors! But I can't work out how to read the HID class descriptors for each interface. AFAIK it's embedded in the config descriptor but can't seem to tickle Parse[Configuration]DescriptorsEx() in order to access them. Walt touches on this but says it's "out of scope" for the book. While I'm here, next step I'll need is to read the report descriptors. Is this done via the same interface, or will I be sending more control channel requests to the device? TIA Regards, Mark Tag: How to Virtual Serial Port Driver in Win98SE? Tag: 58831
  - 20
    - Unique Identification in 'Remove Device' list Hello, I have a USB DD that carries data from a simple data collection device to the Windows software. Each device can collect data for a few points and subsequently some users will want to plug multiple devices in. All of this works fine...well, there are problems but it wouldn't be software if it worked perfectly. My question is: I would like to be able to alter the string that shows up in the 'remove device' list (in the system tray) so that it says (for example) Stop DataRecorder (345) Stop DataRecorder (346) Currently it shows simply: Stop DataRecorder Stop DataRecorder All of physical devices have unique serial numbers. That number is displayed prominently on the device. That is what I am showing in the braces. Thank you in advance Kevin Tag: How to Virtual Serial Port Driver in Win98SE? Tag: 58826
  - 21
    - HOWTO: switch HDD between PIO modes and DMA Hello, All! Sorry for my bad english. :-) I need to write a driver or an application to switch HDD between PIO modes and DMA. Where i can find enough information about it? With best regards, Andrew Vernigora. E-mail: lucifer@listel.lg.ua Tag: How to Virtual Serial Port Driver in Win98SE? Tag: 58822
  - 22
    - Support for Win32_BaseBoard and Win32_ComputerSystemProduct? Do computer manufacturers currently support the following items? Win32_BaseBoard.CIM_PhysicalElement.Manufacturer Win32_BaseBoard.Win32_BaseBoard.Product Win32_BaseBoard.CIM_PhysicalElement.SerialNumber Win32_ComputerSystemProduct.CIM_Product.Vendor Win32_ComputerSystemProduct.CIM_Product.Name Thanks in advance, JK Tag: How to Virtual Serial Port Driver in Win98SE? Tag: 58803
  - 23
    - harm of using same GUID for setup and device interface class? Hi, I have a proprietary USB device and it is installed using a new setup class ( and GUID ) in the INF file . However in its USB client driver , i also register the only device interface that i would like the driver to support using IoRegisterDeviceInterface function in the AddDevice handler . However i am using the same GUID for this device interface as the one which i am also using in the installation INF as an Setup Class GUID . MSDN tpoics sugegst that this is a bad idea . I am seeing some problems with my driver in some scenarios ( setupAPIs that loop on device interfaces are failing , but only in some scenarios ) and i wanted to know if this could be causing this? could somebody pls elaborate why this is a bad idea and what could possibly go wrong if same GUIDs are used like i am using? thanks and regards Taha Tag: How to Virtual Serial Port Driver in Win98SE? Tag: 58801
  - 24
    - order of calling IoCreateDevice and IoRegisterDeviceInterface? Hi , The MSDN topic at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/install/hh/install/setup-cls_f439d4d3-234f-4952-ab5a-a14899fbe5f3.xml.asp suggests that first IoCreateDevice should be called and then a driver should register any device interfaces with IoRegisterDeviceInterface. Does thos order matter? what could possibly go wrong if i call IoRegisterDeviceInterface first and then IoCreateDevice? Note that this is a WDM driver and hence i would call IoCreateDevice with DeviceName parameter as NULL thanks and regards Taha Tag: How to Virtual Serial Port Driver in Win98SE? Tag: 58800
  - 25
    - what does SetupDiGetInterfaceDeviceDetail do?? Hi folks , what is it that SetupDiGetInterfaceDeviceDetail function does? surprisingly there is no help available about this function in MSDN , and i am at a loss to understand what exactly is it that this function does? its prototype is present in setupapi.h and my sample code using tihs function is compiling fine when linking against setupapi.lib thanks and regards Taha Tag: How to Virtual Serial Port Driver in Win98SE? Tag: 58799

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

Top

Re: How to Virtual Serial Port Driver in Win98SE? by Vijay

Vijay
Fri Feb 11 02:50:26 CST 2005

> Or should I write a new Vxd virtual serial port driver to interact with
> WDM USB driver?

Yes. Create Serial device Object within WDM driver and control this device
object by your Port driver (VxD).
Win 98 SE/ ME sends all serial requests to your port driver and your port
driver VxD redirects all these
requests to your WDM driver (which in turn converts the requests to URBs)...

"Bandu" <m.bandu@btopenworld.com> wrote in message
news:1108031260.148838.22020@c13g2000cwb.googlegroups.com...
> 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
>

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Re: How to Virtual Serial Port Driver in Win98SE? by Bandu

Bandu
Fri Mar 11 04:57:14 CST 2005

thanks Vijay.

Bandu

Top