Question about USBD

TheMSsForum.com: The Microsoft Software Forum

The MSS Forum ‹ Drivers
- Archive
  - Biz
  - MCSE
  - CRM
  - Drivers
  - Framework
  - ADO
  - ASP
  - Compact
  - Forms
  - Dotnet
  - C#
  - VB
  - FontpageGen
  - Excel
  - WorkSheet
  - Exchange
  - Setup
  - Fox
  - Fontpage
  - ASP
  - IIS
  - Entourage
  - Money
  - Messanger
  - PocketPC
  - Powerpoint
  - Project
  - Publisher
  - Excel
  - VB
  - Security
  - Portal
  - Services
  - SQLServerDev
  - SVCS
  - SQLServer
  - VB
  - VC
  - MFC
  - ExcelGen

- Previous
 - 1
 - FS Filter Driver READ request Hi All, I am writing an upper filter driver. I run hello.exe which displays "Hello World" using only printf statement. In the read completion request of the filter driver I capture all READ requests for hello.exe. But filter driver never gets READ request for the offset range containing "Hello World" string within the hello.exe. And all the data which is read never contains this string. Still I can see output as "Hello World". I can see rest of the hello.exe being read. Is there any specific reason why it happens so? Any help would be appreciated. Thanks, rushikesh. Tag: Question about USBD Tag: 41082
 - 2
 - Create queue at Ring0 level Hi, I need to create queue at ring0 level.I am using win98 OS.Basically i want to maintain data in queue and i need to write "AddtoQueue" and "Removefromqueue" function at kernel level. Plz suggest me how to do it. regds vinay Tag: Question about USBD Tag: 41076
 - 3
 - mtd Hi, we are design a PCMCIA memory card that has Intel 28F800B flash memory. How do I design a software that it can program the flash memory in windows 2000 ? do I need to write a mtd driver ? or I can use existing MS driver ? I need some guidelines. regards, simon Tag: Question about USBD Tag: 41072
 - 4
 - IRP(s) It is impossible for a dispatch routine to complete another IRP then the one was called for? or It is impossible to complete a IRP from another place then a dispatch routine? Tag: Question about USBD Tag: 41071
 - 5
 - A question Hi How can I integrate the XP DDK's build tool to IDEs, such as VS2002 or Source Insight Thank you Tag: Question about USBD Tag: 41070
 - 6
 - intermediate driver or others!!! Hi All, If I want to develop a layer to provide me with the NIC card/network (mainly connection less) information and have control over starting and stoping those NIC cards then do I have to develop a "NDIS Intermediate driver" or is there other solution(s)??? if the first one is correct, then I was reading in a web site that there are two ways of developing such, one is through Hooking and another through combined protocol/miniport driver, though it was saying that Hooking is best but not supported and not document by MS at all.... is this true??? where can I read indepth info on how to develop intermediate drivers???? thank you in advance. Tag: Question about USBD Tag: 41055
 - 7
 - how does IoGetDeviceObjectPointer() work in win98? Hi, All, I develop a WDM Driver that in the AddDevice()£¬I use IoRegisterPlugPlayNotification() to register listen to an USB device's insert/remove.In its callback function, I use following code to get the DeviceObject£º if(IsEqualGUID(dicn->Event, GUID_DEVICE_INTERFACE_ARRIVAL)) { status = IoGetDeviceObjectPointer( dicn->SymbolicLinkName, FILE_ALL_ACCESS, &pFile, &pdo); ................. } I found that in win 2000£¬the pdo return back is tha same as the DeviceObject of the lower driver. So after that, the IRP build by me can be successfully send to the lower device¡£At this time, the dicn->SymbolicLinkName looks like \??\USB#Vid_6513Pid_0089#51e37dc9701#{guid} But in win98, the same codeget different result. IoGetDeviceObjectPointer £¨£©return NTSUCCESS£¬but the pdo return back is different from the DeviceObject of the lower driver. The IRP build by me£¬can't be send to lower driver by IoCallDriver()¡£what's the problem? this time £¬the dicn->SymbolicLinkName looks like \DosDevice\0000000000000002\{guid} Further more, I found that, in win 2000, when I call IoGetDeviceObjectPointer(), the lower driver will recieve an IRP_MJ_CREATE. But in win 98, the lower one can't recieve that IRP. why? It seems so strange. in win98, the IoGetDeviceObjectPointer() can return success, and give a pdo to me, but I can't use it. Could anybody be kind enough to show me some light in that? Thanks in advance! Tag: Question about USBD Tag: 41054
 - 8
 - CHAT: Windows Kernel Plug and Play/Power Management This Ask The Experts Online session focuses on kernel-mode Plug and Play and power management concerns for driver developers. Bring your questions on Plug 'n Play and power management. See you there! Thursday March 4, 2004 11:00 A.M. - 12:00 P.M. Pacific time 2:00 - 3:00 P.M. Eastern time 19:00 - 20:00 GMT/BST Chatroom: <http://communities2.microsoft.com/home/chatroom.aspx?siteid=34000014> To add this to you calendar: http://www.msdn.microsoft.com/chats/outlook_reminders/win_mar04.vcs For more info on MSDN chats, including other upcoming developer chats, chat archives, and other info see http://www.msdn.microsoft.com/chats. Tag: Question about USBD Tag: 41047
 - 9
 - USBD DISPATCH_LEVEL Requests Is there any formal (or at least accurate) documentation on which USBD requests require/allow which IRQL? For instance, I know I can invoke URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER at DISPATCH_LEVEL and I know that URB_FUNCTION_SELECT_CONFIGURATION when called at DISPATCH_LEVEL (executes paged code at line 1025 of usbd\config.c). It sure would be handy to have a document on this rather than needing to step through all this by trial-and-error. Thanks. -- Daniel Norton Tag: Question about USBD Tag: 41045
 - 10
 - driver installation problem Hi, If I use the New Hardware Wizard and specify the wizard to "skip driver installations of this device. Windows will prompt again to perform the driver installation". Then when I run my own driver installation program, the call to get the SPDRP_CONFIGFLAGS using SetupDiGetDeviceRegistryProperty fails ... checking the registry the key doesn't seem to exist My questions are 1) How can I tell if such a device is marked for installation/re-installation 2) How can I find out which devices will be automatically handled by the hardware wizard the next time they are plugged i Thank Dan Tag: Question about USBD Tag: 41041
 - 11
 - PCI card driver: enumeration and interfaces Hallo, thank you for your help with my previous problems :) I'm developing a driver for a custom PCI card which exposes some resources. We want to hide the number of the cards from user mode, so i wrote another driver which enumerates the real devices and routes the requests to the appropriate device, appearing as one single big card. I've got some problems here: when I try to enumerate the devices, I only get the first device object, and I'm not able to obtain the other(s). I've got two cards installed at the moment, and with Device Three i can see both of them, but when i call IoGetDeviceInterfaces() I only get one entry, and the device object obtained from that entry with IoGetDeviceObjectPointer() has the NextDevice field set to null. How can i get the full list of the devices given the class id or the hwid ? Another thing: the two device types communicate through an interface. The upper device opens the lower device and sends a IRP_MN_QUERY_INTERFACE. in the lower device the request is handled properly, and the Status field is set to STATUS success, but back in the upper device i obtain an error in Status. Before calling IoCallDriver i set the Status field to STATUS_NOT_SUPPORTED and that (or whatever else i put in it) is the value that I get back. Thank you again for your help, jross Tag: Question about USBD Tag: 41035
 - 12
 - Help me to install the dev. environment Hello I have to develop a specific DRIVER for Windows Pocket PC 4.2 (Win CE). I'm lost ! ! ! HELP ME I don't know what I have to install... I don't find the DDk for Pocket PC 2003 (does it exist ?) What have I to install to develop NOT an application but A DRIVER for Pocket PC In which order I have to install them Thanks a lot for your help Bertrand THOMAS Tag: Question about USBD Tag: 41029
 - 13
 - one question about IRP_MN_QUERY_DEVICE_RELATIONS under HCT test Dear all My driver is one usb driver.When I test my driver using HCT and the PC restart, the system will crash. windbug will report the result ********************************************************************** * THIS VALIDATION BUG IS FATAL AND WILL CAUSE THE VERIFIER TO HALT * WINDOWS (BUGCHECK) WHEN THE MACHINE IS NOT UNDER A KERNEL DEBUGGER! ********************************************************************** WDM DRIVER ERROR: [*.sys @ 0xF87D2048] Caller has changed th information field of an IRP it does not understand (Irp 82430EB8 ) IRP_MJ_PNP.IRP_MN_QUERY_DEVICE_RELATIONS(Bogus [ DevObj=81CE21C0, FileObject=00000000, Parameters=FFFFFFFF 00000000 00000000 00000000 http://www.microsoft.com/hwdq/bc/default.asp?os=5.1.2600&major=0xc9&minor=0x214&lang=0x Break, Ignore, Zap, Remove, Disable all (bizrd)? Breaking in... (press g<enter> to return to assert menu Break instruction exception - code 80000003 (first chance *** ERROR: Symbol file could not be found. Defaulted to export symbols for ntkrnlmp.exe - nt!DbgBreakPoint 8051d4a4 cc int No results were found for OS Code: 5.1.260 BugCheck Major Code: 0xc BugCheck Minor Code: 0x21 I directly send the IRP_MJ_PNP.IRP_MN_QUERY_DEVICE_RELATIONS to the below driver PAGED_CODE() NTSTATUS ntStatus PDEVICE_EXTENSION dx=(PDEVICE_EXTENSION)fdo->DeviceExtension IoSkipCurrentIrpStackLocation(Irp) ntStatus=IoCallDriver( ATTACHED_DEVICE_OBJECT, Irp) Now I am going to change the code to the below code : (will these code lead to any wrong? NTSTATUS HandleQueryRelations(PDEVICE_OBJECT fdo, PIRP Irp PDEVICE_EXTENSION dx=(PDEVICE_EXTENSION)fdo->DeviceExtension PIO_STACK_LOCATION stack = IoGetCurrentIrpStackLocation(Irp) if (stack->Parameters.QueryDeviceRelations.Type != BusRelations) return PnpDefaultHandler(fdo, Irp) PDEVICE_RELATIONS newrel = (PDEVICE_RELATIONS) ExAllocatePool(PagedPool, sizeof(DEVICE_RELATIONS) + sizeof(PDEVICE_OBJECT)) newrel->Count = 1 newrel->Objects[0] = dx->fdo ObReferenceObject(dx->fdo); Irp->IoStatus.Information = (ULONG_PTR) newrel Irp->IoStatus.Status = STATUS_SUCCESS return PnpDefaultHandler(fdo, Irp) Thanks a lot! Tag: Question about USBD Tag: 41025
 - 14
 - sources file and ..\pathto\module.cpp Hello I added to the sources line a new module in a directory below it as: sources = file1.cpp \ ..\common\module2.cpp But now when building, this occurs: BUILD: Ignoring invalid directory prefix in SOURCES= entry: ..\common\module2.cpp Then: "Don't know how to build ...." How can I solve this? -- Elias Tag: Question about USBD Tag: 41023
 - 15
 - Legacy Driver - WTF is the card? Hi I have been learning (read oney's and the 2000 book) I can see and scan the PCI buss BUT I just realized the card I have (scrammnet memory card) isnt PNP. So after much crying and hating myself for not catching that ... its a PCI card w/fiber optic connections to other scrammnet cards on its network ... how do I find out where the card is (which slot) and what its i/o address and interupts are?? I wasnt finding much on these specifics in legacy reading. Its abudant for the PNP. Any help appreciated Signed One guy who feels beat up and bruised badly by the WDM Tag: Question about USBD Tag: 41016
 - 16
 - Joystick and DirectX with application and not driver Hello I have the following "creasy" problem. I must write an application (MFC), that can emulate joysticks (no hardware!) for an DirectX application. The DirectX application works with DirectInput. What is the best way to send to the windows system information about joystick axis and buttons (max. 16)? Must I write a driver or can I send this from my application? I hope anybody can help me here with informations Thank Hans Wehner Tag: Question about USBD Tag: 41015
 - 17
 - Identify User Hello, Given a process id, at kerner level can we identify who's the user who has the control over the process or who is running that process (or an application). I want to know this for win 98, XP and 2k and above. rgds Bmm Tag: Question about USBD Tag: 41009
 - 18
 - NonStandard Floppy I want to access a nonstandard formatted floppy ( 256 bytes/sector, 16 sector/track) and the standard floppy driver don't know to read this kind of floppy. In W95 I did that with BOIS int1Eh (floppy drive parameters) and int 13h. How can I do that in NT/2000/XP? ( no BIOS interuptions access...) I begin to look the fdc example and I think that's the way ( modify the driver to know this particular format). Anybody knows other ways?If this is the solution, what and where I must change in this floppy driver example to read this format? Thanks. Tag: Question about USBD Tag: 41006
 - 19
 - FYI: New Release of "OIDScope" User-Mode NDIS Query Tool for Windows NT and Higher March 1, 2004 - PCAUSA has released the V5.5.17.58 (March, 2004) update to the OIDScope user-mode NDIS query application. OIDScope is a Win32 application that provides a simple way for users to make NDIS queries for information without the need for a companion NDIS protocol driver. OIDScope is one of the components of the PCAUSA NDIS Tools, which are FREE in executable form. *** OIDScope only supports Windows NT 4.0 and higher platforms!!! *** If you work with custom OIDs or 802.11 miniports, then you may have an interest in upgrading to this new release. This release of OIDScope includes these improvements: * 802.11 Property Page and auto-updating BSSID list scan for Windows XP and higher * Custom OID Query (User entry of OID value) * Support for Windows XP 64-Bit Edition (AMD64) * Meaningful icons in adapter chooser list * Better behavior when returning from standby/hibernation * HTML Help file * Various application improvements The web page for the PCAUSA NDIS Tools can be found at the URL: http://www.pcausa.com/Utilities/ndistools.htm The URL includes additional information as well as an email auto-responder that will send you download instructions. We will NOT use the auto-responder email to send UCE. You can read the PCAUSA Privacy policy at: http://www.pcausa.com/pressroom/privacy.htm Thanks for your interest. Thomas F. Divine Tag: Question about USBD Tag: 41001
 - 20
 - Working example of class filter driver for keyboards and mice??? Hello, folks, does anyone reading this have working example(s) of such drivers? I would be very glad to get such a driver... (at it´s best with working installation files) Thanks and best regards Volker Tag: Question about USBD Tag: 40998
 - 21
 - AVStream avshws DDK example I'm playing around with avshws to learn AVStream. avshws shows up in the "WDM Streaming Capture Devices" category in GraphEdit. I'd like the driver to appear in "Video Capture Sources" as well. I have some ideas as to how this might be done, but I'd like to get a deeper understanding. Any info is appreciated. AMCap only enumerates CLSID_VideoInputDeviceCategory devices, as do most capture apps that I'm aware of. What logic determines which categories a video capture card should belong to? What is the difference between CLSID_VideoInputDeviceCategory and AM_KSCATEGORY_CAPTURE? Tag: Question about USBD Tag: 40996
 - 22
 - Link error with ScsiDebugPrint & ScsiPortInitialize I'm trying to create a scsi port driver but I'm having problems with the miniport functions. I'm using DDK 3790 and have created WDM drivers in the past with no problem. I've event directly specified the library files using TARGETLIBS but that makes no difference. If anyone has any ideas I would be very grateful. I've included the last part of the log file preoduced by build -entry:DriverEntry@8 -out:objchk_w2K_x86\i386\IDEPORT.sys objchk_w2K_x86\i386\driver.res objchk_w2K_x86\i386\ideport.obj E:\WINDDK\3790\lib\w2K\i386\int64.lib E:\WINDDK\3790\lib\w2K\i386\scsiport.lib E:\WINDDK\3790\lib\w2K\i386\scsiwmi.lib E:\WINDDK\3790\lib\w2K\i386\sehupd.lib /Tmp ideport.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) unsigned long __stdcall ScsiPortInitialize(void *,void *,struct _HW_INITIALIZATION_DATA *,void *)" (__imp_?ScsiPortInitialize@@YGKPAX0PAU_HW_INITIALIZATION_DATA@@0@Z) referenced in function _DriverEntry@ ideport.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) void __cdecl ScsiDebugPrint(unsigned long,char *,...)" (__imp_?ScsiDebugPrint@@YAXKPADZZ) referenced in function _DriverEntry@ objchk_w2K_x86\i386\IDEPORT.sys : fatal error LNK1120: 2 unresolved external echo Skip Binplace Skip Binplace Stop. Tag: Question about USBD Tag: 40994
 - 23
 - not found? In the registry updates configure API's with device drivers tha controll the programing for desktop applications. When a drive or file needs to be replaced where can the device be found t replace the missing application? Tag: Question about USBD Tag: 40992
 - 24
 - Newbie Error Hi All, Well i bought "Programming the microsoft windows driver model" and tried to compile chapter2/stupid after i had installed sp5 for Visual studios C++ and now i get this error: Can anyone help me? before i upgraded i had no problems. Here is my build log output. Compiling h:\ntddk\src\stupid directory ******************** 'nmake.exe /c BUILDMSG=Stop. -i NTTEST= UMTEST= NOLINK=1 386=1' rc -l 409 -z "MS Sans Serif,Helv/MS Shell Dlg" -r -fo objchk\i386\driver.tmp -D_X86_=1 -Di386=1 -DSTD_CALL -DCONDITION_HANDLING=1 -DNT_UP=1 -DNT_INST=0 -DWIN32=100 -D_NT1X_=100 -DWINNT=1 -D_WIN32_WINNT=0x 0500 -DWINVER=0x0500 -D_WIN32_IE=0x0501 -DWIN32_LEAN_AND_MEAN=1 -DDBG=1 - DDEVL=1 -DFPO=0 -DNDEBUG -D_DLL=1 -Ih:\NTDDK\inc -Ih:\NTDDK\inc -Ih:\N TDDK\inc\ddk\wdm -Ih:\NTDDK\private\inc -Ih:\NTDDK\inc .\driver.rc cl -nologo -Ii386\ -I. -Ih:\NTDDK\inc -Ih:\NTDDK\inc -Ih:\NTDDK\inc\ddk\wdm -Ih:\NTDDK\private\inc -Ih:\NTDDK\inc -D_X86_=1 -Di386=1 -DSTD_CALL -DCONDI TION_HANDLING=1 -DNT_UP=1 -DNT_INST=0 -DWIN32=100 -D_NT1X_=100 -DWINNT=1 -D _WIN32_WINNT=0x0500 -DWINVER=0x0500 -D_WIN32_IE=0x0501 -DWIN32_LEAN_AND_M EAN=1 -DDBG=1 -DDEVL=1 -DFPO=0 -DNDEBUG -D_DLL=1 /c /Zel /Zp8 /Gy -cbstring /W3 /Gz /QIfdiv- /QIf /QI0f /GB /Gi- /Gm- /GX- /GR- /GF -Z7 /Oxs /Oy- -FIh:\NTDDK\inc\warning.h .\driverentry.cpp driverentry.cpp Stop. Linking h:\ntddk\src\stupid directory ******************** 'nmake.exe /c BUILDMSG=Stop. -i LINKONLY=1 NOPASS0=1 NTTEST= UMTEST= 386=1' link -out:objchk\i386\STUPID.sys -machine:ix86 @H:\DOCUME~1\gary\LOCALS~1\Temp\nma03884. Microsoft (R) Incremental Linker Version 5.12.8181 Copyright (C) Microsoft Corp 1992-1998. All rights reserved. -STACK:262144,4096 -MERGE:_PAGE=PAGE -MERGE:_TEXT=.text -SECTION:INIT,d -OPT:REF -OPT:ICF -IGNORE:4001,4037,4039,4044,4065,4070,4078,4087,4089,4198 -INCREMENTAL:NO -FULLBUILD -FORCE:MULTIPLE -NOCOMMENT /release -NODEFAULTLIB -debug:FULL -debugtype:cv -version:5.00 -osversion:5.00 -optidata -driver -driver:wdm -align:0x20 -subsystem:native,1.10 -base:0x10000 -entry:DriverEntry@8 -out:objchk\i386\STUPID.sys objchk\i386\driver.res objchk\i386\driverentry.obj h:\NTDDK\libchk\i386\wdm.lib driverentry.obj : error : Internal error during Pass2 ExceptionCode = C0000005 ExceptionFlags = 00000000 ExceptionAddress = 4B82B47A NumberParameters = 00000002 ExceptionInformation[ 0] = 00000000 ExceptionInformation[ 1] = 00000014 CONTEXT: Eax = 00000000 Esp = 0012F0B8 Ebx = 0036A328 Ebp = 0012F0C8 Ecx = 00000000 Esi = 0036A328 Edx = 00370009 Edi = 00000000 Eip = 4B82B47A EFlags = 00010256 SegCs = 0000001B SegDs = 00000023 SegSs = 00000023 SegEs = 00000023 SegFs = 00000038 SegGs = 00000000 Dr0 = 0012F0B8 Dr3 = 0036A328 Dr1 = 0012F0C8 Dr6 = 00000000 Dr2 = 00000000 Dr7 = 00000000 Stop. Thanks Gary Rusher Tag: Question about USBD Tag: 40981
 - 25
 - Memory access How can you write from a driver to user mode allocated read only memory? Tag: Question about USBD Tag: 40954
- Next
 - 1
 - NEC dvd driver problem Hope I'm in the right newsgroup! I have just bought a NEC 2500 dvd rw, but have major problems installing it. WindowsXP is recognising the drive but is unable to load the drivers. The balloon message says Found New Hardware _NEC dvd rw 2500a Found New Hardware CD Rom Found New Hardware _NEC dvd rw 2500a Found New Hardware CD Rom and so on and so on. The drive is not fully recognised or usable, and is automatically disabled in the device manager. I can sometimes get XP to recognise the dvd drive by uninstalling and re-installing the dvd drivers and forcing enable and it will work fine for a while. When I re-start XP the balloon message will again pop up and it starts all over again. Found New Hardware _NEC dvd rw 2500a Found New Hardware CD Rom Found New Hardware _NEC dvd rw 2500a Found New Hardware CD Rom and on and on until I remove the drivers in Device manager. This appears to be a recognised problem and is mentioned on the NEC website but the following solution proposed by them does not work. You need to choose to your "DRIVERS" folder. Then change or delete the folder "MONITOR" Switch to "C:WINDOWS" Ensure that you have in windows explorer settings option activated to see ALL data (also hided and system files) Switch to "c:WINDOWSINF" Look for the "INFCACHE.1" file and delete it Switch to your desktop trash can and empty it If problem cant be solved, pls. contact manufacturer of your PC package. The folder "Monitor" does not exist on my PC! Any help will be gratefully received. -- --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.592 / Virus Database: 375 - Release Date: 18/02/2004 Tag: Question about USBD Tag: 40949
 - 2
 - Difference between Local Disk aund Removable Disk Hi, I have read Mark Roddy's article on http://www.wd-3.com/121503/luserland.htm. He described as you can get the sector address (LBA) a file on a harddisk. His sample code works for NTFS & FAT32 partions. With a small look in the FAT spec and some adaptations the sample also works for FAT12/16. The sample works on W2K & WXP for harddisks and all disks declared as "Local Disk". For "Removable Disk" like a USB Mass Storage Device this sample (API call DeviceIoControl/IOCTL_VOLUME_LOGICAL_TO_PHYSICAL) does not work and system error 50 (not supported) does occur. The same device declared as "Local Disk" everythink does work. Is there are a workaround to get DeviceIoControl/IOCTL_VOLUME_LOGICAL_TO_PHYSICAL data also on "Removable Disks" or is there are another possibility to get the wanted information on another way? All hints are very welcome. TIA Alex Tag: Question about USBD Tag: 40948
 - 3
 - Access USB device from userland Hi, I'm trying to write a application that is able to send vendor unique reqeust to our USB device. I tried USBView in DDK, but it doesn't work on my XP box. It always fails in IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX. Is there any documentation related with USB userland app? The DDK documentation is all about writing a driver, which I'm trying to avoid here. Thanks, Zhen Tag: Question about USBD Tag: 40945
 - 4
 - HELP NEEDED: Mirror Display driver problem... Hi, I am trying to access the miniport driver from user mode, when trying to access the display driver all works fine, BUT when trying to get the miniport handle ( at user mode ) I keep getting an invalid handle with a file not found last error code... Why can this happen? The driver name I am using is found under 'HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\%DriverName%' and the same name found in the .inf file used to install the driver... What am I doing wrong here? following is a snap-shot of the code used to create the driver and the .inf file used to install the driver... THE CODE USED TO GET THE DRIVERS HANDLE ======================================= // Returns an invalid handle, GetLastError returns file not found... HANDLE hDevice = CreateFile("\\\\.\\MirrorTest", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL); ... ... THE ".INF" FILE ============ ; MirrorTest.inf ; ; Installation inf for the Mirror graphics adapter. ; ; Copyright (x) 1995-1999 Microsoft Corporation. All rights reserved ; [Version] Signature="$CHICAGO$" Provider=%Microsoft% ClassGUID={4D36E968-E325-11CE-BFC1-08002BE10318} Class=Display DriverVer=06/01/1999,1.0 [DestinationDirs] DefaultDestDir = 11 MirrorTest.Miniport = 12 ; drivers MirrorTest.Display = 11 ; system32 ; ; Driver information ; [Manufacturer] %Microsoft% = MirrorTest.Mfg [MirrorTest.Mfg] %Mirror% = MirrorTest, Microsoft_Mirror_Sample1 ; ; General installation section ; [MirrorTest] CopyFiles=MirrorTest.Miniport, MirrorTest.Display ; ; File sections ; [MirrorTest.Miniport] MirrorTest.sys [MirrorTest.Display] MirrorTest.dll ; ; Service Installation ; [MirrorTest.Services] AddService = MirrorTest, 0x00000002, mirror_Service_Inst, mirror_EventLog_Inst [mirror_Service_Inst] ServiceType = 1 ; SERVICE_KERNEL_DRIVER StartType = 1 ; SERVICE_SYSTEM_START ErrorControl = 0 ; SERVICE_ERROR_IGNORE LoadOrderGroup = Video ServiceBinary = %12%\MirrorTest.sys [mirror_EventLog_Inst] AddReg = mirror_EventLog_AddReg [mirror_EventLog_AddReg] HKR,,EventMessageFile,0x00020000,"%SystemRoot%\System32\IoLogMsg.dll;%System Root%\System32\drivers\MirrorTest.sys" HKR,,TypesSupported,0x00010001,7 ; ; Software Installation ; [MirrorTest.SoftwareSettings] AddReg = mirror_SoftwareDeviceSettings [mirror_SoftwareDeviceSettings] HKR,, MirrorDriver, %REG_DWORD%, 1 HKR,, InstalledDisplayDrivers, %REG_MULTI_SZ%, MirrorTest HKR,, VgaCompatible, %REG_DWORD%, 0 HKR,, Attach.ToDesktop, %REG_DWORD%, 1 [MirrorTest.OpenGLSoftwareSettings] AddReg = mirror_OpenGLSoftwareSettings [mirror_OpenGLSoftwareSettings] ; ; Not currently used: ; [MirrorTest.GeneralConfigData] MaximumNumberOfDevices = 1 KeepExistingDriverEnabled = 1 ; ; Source file information ; [SourceDisksNames.x86] 1 = %DiskId%,,,"" [SourceDisksFiles] MirrorTest.sys = 1 MirrorTest.dll = 1 [Strings] ; ; Non-Localizable Strings ; REG_SZ = 0x00000000 REG_MULTI_SZ = 0x00010000 REG_EXPAND_SZ = 0x00020000 REG_BINARY = 0x00000001 REG_DWORD = 0x00010001 SERVICEROOT = "System\CurrentControlSet\Services" ; ; Localizable Strings ; DiskId = "Mirror Installation DISK (VIDEO)" GraphAdap = "Graphics Adapter" Microsoft = "Microsoft" Mirror = "Microsoft Mirror Driver" Thanks, Nadav. Tag: Question about USBD Tag: 40939
 - 5
 - unresolved external using standard C lib I feel like an idiot, but this is my first time trying to compile things in the DDK environment. I'm trying to use the C standard runtime function "fopen" in a driver. I've included stdio.h and the code compiles fine, but when it links, I get "unresolved external symbol __imp__fopen referenced in function..." I figured the standard C library stuff would be setup to link by default. What am I missing, and where does it go? Thanks, pw Tag: Question about USBD Tag: 40922
 - 6
 - [802.11] Windows NDIS questions Hello, I am beginner at this subject. Sorry I if ask some bullshits. I need develop an application that detect the available access points and establish a connection. The target O.S. are Windows 2000 and Windows XP. My questions are: 1. What are the diferences among NDIS, NDISUIO and NDISPROT? 2. Must I develop a Protocol driver(like NDISPROT or NDISUIO) or it's better call directly the NDIS library functions(like NdisRequest)? 3. How can I disable Wireless Zero Configuration (WZC) service inside my application? Thanks, Claudio. Tag: Question about USBD Tag: 40920
 - 7
 - [802.11] Windows NDIS questions Hello, I am beginner at this subject. Sorry I if ask some bullshits. I need develop an application that detect the available access points and establish a connection. The target O.S. are Windows 2000 and Windows XP. My questions are: 1. What are the diferences among NDIS, NDISUIO and NDISPROT? 2. Must I develop a Protocol driver(like NDISPROT or NDISUIO) or it's better call directly the NDIS library functions(like NdisRequest)? 3. How can I disable Wireless Zero Configuration (WZC) service inside my application? Thanks, Claudio. Tag: Question about USBD Tag: 40919
 - 8
 - MS DDK sample project Does anyone know how to build an MS DDK sample project (such as oemps) that has been modified to include api's that are definned in ntddk? The build environment would be XP, DDK 2600.1106, Feb 2003 SDK, and VC6.0. Tag: Question about USBD Tag: 40915
 - 9
 - Typeperf Does anyone know what the image size is for an install of typeperf in XPE Thanks Tag: Question about USBD Tag: 40910
 - 10
 - Questions on PCI config space when ressetting a PCI board Hi, I'm developing a wdm driver under Win2K for a proprietary PCI board. Unfortunately, the board's PCI interface logic is part of a FPGA that can only be fully reset by reconfiguring the FPGA. We foresee that we need to reset our board on certain occasions and we do not want to power-cycle our system for this. Therfor, I'm implementing the following reset sequence in my driver: Because the reconfiguration of the FPGA resets the PCI config space, I start with saving this data (after having disabled the boards PCI interface). I then call PoRequestPowerIrp to force the board to go to device state D3. In the IoCompletion routine, PoRequestPowerIrp is called again to force the board to go back to device state D0 (this actually resets our FPGA and the PCI config space). In the IoCompletion routine of the second PoRequestPowerIrp, I restore the PCI config space data and reenable the PCI interface. When, in the above scheme, I use the sequence IoBuildAsynchronousFsdRequest() - IoSetCompletionRoutine() - IoCallDriver() to read or write the PCI configuration space, this completion routine is called with DeviceObject = NULL. I solve this by passing the DeviceObject via the 'context' of the completion routine. Is this normal or could I be doing something wrong here? Apart from the above problem the sequence seems to work, but I am not sure wether I should also save and restore the power management registers of the PCI config space. Or should I leave this to the pci.sys bus driver who does the actual D0/D3/D0 switching ? Also, I'm not sure that the above will work under all circumstances so I would appreciate it if anybody knows where to find some more info on stuff like this. Thanks in advance, Koen Tag: Question about USBD Tag: 40909
 - 11
 - Basic kernel mode driver question. I have the following development workstation: Windows XP Pro, VC++6.0, DDK 2600.1106 (installed in C:\DDK\WINDDK\2600.1106), Platform SDK February 2003. As a confirmation that all of the above components are installed correctly, I compiled one of the sample projects (oemps) by doing the following: 1.. Opened an XP checked build window via the start menu. 2.. Navigated to "C:\DDK\WINDDK\2600.1106\src\print\oemdll\oemps". 3.. Typed "build -cef" 4.. The kernel mode driver KOEMPS.DLL was built and placed in "C:\DDK\WINDDK\2600.1106\src\print\oemdll\i386". My goal is to generate a random number in PSCommand method of "C:\DDK\WINDDK\2600.1106\src\print\oemdll\oemps\command.cpp" 1.. Using the VC6.0 IDE, I added the following to the pscommand method: LARGE_INTEGER time; ULONG seed; // seed value should be a global or in device extension ULONG rand; // random value KeQuerySystemTime(&time); // only do first time or in init code! seed = (ULONG) time; rand = RtlRandom(&seed); // get random number 2.. I Opened an XP checked build window via the start menu. 3.. Navigated to "C:\DDK\WINDDK\2600.1106\src\print\oemdll\oemps". 4.. Typed "build -cef". Command.cpp failed to compile because KeQuerySystemTime and RtlRandom were 'undeclared identifiers'. Because these two api's are defined in ntddk.h, I added '#include <ntddk.h>' to command.cpp. The compile failed because it could not find ntddk.h. I then changed the line to '#include < C:\DDK\WINDDK\2600.1106\inc\ddk\wxp\ntddk.h>'. The compile failed again because I had several redefinition errors. How do I get api's defined in NTDDK.H to compile in this (oemps) Microsoft provided sample project? Tag: Question about USBD Tag: 40908
 - 12
 - IRP_MJ_INTERNAL_DEVICE_CONTROL problem H I'm currently developing a filter driver, but I still encounter this problem in my IRP_MJ_INTERNAL_DEVICE_CONTROL handler. That's my code NTSTATUS MyDispatchInternalDeviceControl(IN PDEVICE_OBJECT pDeviceObject, IN PIRP Irp) { PDEVICE_EXTENSION pDeviceEx; PIO_STACK_LOCATION IrpSp = NULL; IrpSp = IoGetCurrentIrpStackLocation(Irp); IoCopyCurrentIrpStackLocationToNext( Irp ); pDeviceEx = (PDEVICE_EXTENSION)pDeviceObject->DeviceExtension; return IoCallDriver(pDeviceEx->pLowerDeviceObject, Irp ); //crashe } When I call IoCallDriver the system crashes with KERNEL_MODE_EXCEPTION (8e). Does anyone know why Thanks a lo mosquitooth Tag: Question about USBD Tag: 40906
 - 13
 - USB Modem device Hi, We have a USB modem device, which is acually a GSM/GPRS phone. The GSM/GPRS part may need the PIN code for the SIM card in order to make calls. Se when the initialization command has been sent, we must ask the device if it it needs the PIN, and present a dialog if it does. How can we accomplish this? Please direct me to relevant documentation or newsgroup. Leo Havmøller. Tag: Question about USBD Tag: 40904
 - 14
 - USB Modem device Hi, We have a USB modem device, which is acually a GSM/GPRS phone. The GSM/GPRS part may need the PIN code for the SIM card in order to make calls. Se when the initialization command has been sent, we must ask the device if it it needs the PIN, and present a dialog if it does. How can we accomplish this? Please direct me to relevant documentation or newsgroup. Leo Havmøller. Tag: Question about USBD Tag: 40903
 - 15
 - Driver date and version this is pice of my inf file for my driver [Version] Signature=$CHICAGO$ Class= SvanDevices ClassGuid={EDD31C19-40AE-4ca6-8D81-3E6F2B1676B5} CatalogFile=svan_driver.cat Provider=%MFGNAME% DriverVer=02/26/2004,1.2.3 My problem is that W200 in driver properties don.t display driver date. Driver version is correct, but date is not available. This bug cuse to problems with driver update. I must delete inf file from windows/inf folder I compile my driver with rc file. Tag: Question about USBD Tag: 40901
 - 16
 - NDIS test failed on MiniportHalt In the MiniprotHalt routine, I have to cancel timer queue which I have set with NdisSetTimer and NdisInitializeTimer at Miniport InitializeHandler. When I called *NdisMCancelTimer*, I got an assertion failed. *** Assertion failed: ((Timer)->Header.Type == TimerNotificationObject) || ((Timer)->Header.Type == TimerSynchronizationObject) *** Source File: D:\nt\private\ntos\ke\timerobj.c, line 186 The code VOID MPHalt( IN NDIS_HANDLE MiniportAdapterContext) { PMP_ADAPTER Adapter = (PMP_ADAPTER) MiniportAdapterContext; ... // Cancel pending timers NdisMCancelTimer(&Adapter->Timer, &Cancelled); ... } Could you give me any suggestions or clues, thank in advance. Tag: Question about USBD Tag: 40900
 - 17
 - Unidrv: Custom Halftoning on Windows NT Since The *HTCallbackID does not work on Windows NT, we have hooked the IPrintOEMUni::ImageProcessing() callback to apply the custom halftone pattern This Unidrv based PCL driver is for a monochrome printer. The values in our custom halftone pattern are in the range of 0 to 255. Hence to apply this pattern we have the following values in the ColorMode feature of our GP *Feature: ColorMod *rcNameID: =COLOR_PRINTING_MODE_DISPLA *DefaultOption: Mon *Option: Mon *rcNameID: =MONO_DISPLA *Color?: FALS *DevBPP: *DevNumOfPlanes: *DrvBPP: *IPCallbackID: 334 We *have* to convert the source DIB to 1BPP and give it back to the UNIDRV after ImageProcessing() returns. The indexes in the pSrcBitmap to the pColorTable where converted to grayscale values using the formul greyvalue = rgbRed * 0.299 + rgbGreen * 0.587 + rgbBlue * 0.114 We tried dithering the 8BPP grayscale DIB using Flyod-Stienberg algorithm, but are not able to reproduce the same quality DIB the UNIDRV gives us when the *DrvBPP is Are we missing something How does GDI do the dithering from 8BPP to 1 BPP Is it possible to dither 8BPP greyscale to 1BPP Monochrome image of the same quality as GDI's dithering Tag: Question about USBD Tag: 40899
 - 18
 - Question about using IoGetDeviceObjectPointer() in Win98 Hi, All, I develop a WDM Driver that in the AddDevice()£¬I use IoRegisterPlugPlayNotification() to register listen to an USB device's insert/remove.In its callback function, I use following code to get the DeviceObject£º if(IsEqualGUID(dicn->Event, GUID_DEVICE_INTERFACE_ARRIVAL)) { status = IoGetDeviceObjectPointer( dicn->SymbolicLinkName, FILE_ALL_ACCESS, &pFile, &pdo); ................. } I found that in win 2000£¬the pdo return back is tha same as the DeviceObject of the lower driver. So after that, the IRP build by me can be successfully send to the lower device¡£At this time, the dicn->SymbolicLinkName looks like \??\USB#Vid_6513Pid_0089#51e37dc9701#{guid} But in win98, the same codeget different result. IoGetDeviceObjectPointer £¨£©return NTSUCCESS£¬but the pdo return back is different from the DeviceObject of the lower driver. The IRP build by me£¬can't be send to lower driver by IoCallDriver()¡£what's the problem? this time £¬the dicn->SymbolicLinkName looks like \DosDevice\0000000000000002\{guid} Further more, I found that, in win 2000, when I call IoGetDeviceObjectPointer(), the lower driver will recieve an IRP_MJ_CREATE. But in win 98, the lower one can't recieve that IRP. why? It seems so strange. in win98, the IoGetDeviceObjectPointer() can return success, and give a pdo to me, but I can't use it. Could anybody be kind enough to show me some light in that? Thanks in advance! Tag: Question about USBD Tag: 40894
 - 19
 - Need Help on POSUSB Hi , I am implementing a Virtual Com port driver for our Target Device on WinXp. For this, I have taken the reference driver code from Microsoft POSUSB The issue is that while doing an install / Uninstall or Enable / Disable of the Virtual Com Port, the OS asks for a system restart. I am interested in knowing if this is an acceptable behavior as we are planning to do HCT validation of the driver. We have referred to the HCT documentation for the same, but in no place does it say that this restart is acceptable. Unfortunately, I have not been able to find how serial port emulation can be done without the above said behavior. when i Disable/Enable or Install/Uninstall the device, i am not handling the RemovalRelations in the IRP_MN_QUERY_REMOVE_DEVICE.i am just passing that IRP down as STATUS_SUCCESS. after that i am geting IRP_MN_CANCEL_REMOVE_DEVICE this is because of bus driver not process it proper. But as per Documentation you need not worry about this IRP. I would be very grateful if you can guide me in this regards. thanks in advance Regards, Deepak. Tag: Question about USBD Tag: 40892
 - 20
 - DrvQueryFont When is DrvQueryFont called What are the possible factors in order to be called TI alviin Tag: Question about USBD Tag: 40891
 - 21
 - How to implement Selective Suspension on NDIS-WDM driver Does anybody know to implement Selective Suspension for USB device on NDIS-WDM driver? Especially how to handle IRP_MN_WAIT_WAKE on NDIS-WDM driver? Thanks. Tag: Question about USBD Tag: 40888
 - 22
 - Read a file in driver Hi, I've written a function to read a file and copy its data to a buffer in the non paged pool. But I can get nothing after a KsRead() call. All the returned value are STATUS_SUCCESS. It's qutie strange. My code is as following: NTSTATUS ReadMyFile( IN PWCHAR FileName ) { NTSTATUS status; IO_STATUS_BLOCK ioStatusBlock; UNICODE_STRING fileNameString; OBJECT_ATTRIBUTES objectAttributes; ACCESS_MASK desiredHandleAccess; ACCESS_MASK desiredObjectAccess; ULONG ulShareAccess; ULONG ulDisposition; FILE_STANDARD_INFORMATION StandardInformation; HANDLE hFile = NULL; FILE_OBJECT *pFileObject = NULL; // // Attempt to open the file based on the access rights of the caller. // Note that the SYNCHRONIZE flag must be set on the Create even // though this is contained in the translated GENERIC_READ attributes. // This is because the bit is tested before the Generic attributes // are translated. This filter only does synchronous I/O on stream // Read requests. // RtlInitUnicodeString(&fileNameString, FileName); InitializeObjectAttributes( &objectAttributes, &fileNameString, OBJ_CASE_INSENSITIVE, NULL, NULL); // // Set the access desired based on the type of filter which was // actually created. // desiredHandleAccess = GENERIC_READ | SYNCHRONIZE; desiredObjectAccess = FILE_READ_DATA; ulShareAccess = FILE_SHARE_READ; ulDisposition = FILE_OPEN; status = IoCreateFile(&hFile, desiredHandleAccess, &objectAttributes, &ioStatusBlock, NULL, 0, ulShareAccess, ulDisposition, FILE_SYNCHRONOUS_IO_NONALERT, NULL, 0, CreateFileTypeNone, NULL, IO_FORCE_ACCESS_CHECK | IO_NO_PARAMETER_CHECKING); if ( !NT_SUCCESS(status) ) { goto error; } status = ObReferenceObjectByHandle(hFile, desiredObjectAccess, *IoFileObjectType, ExGetPreviousMode(), reinterpret_cast<void **>(&pFileObject), NULL); if ( !NT_SUCCESS(status) ) { goto error; } if (m_pFileBuffer != NULL) { ExFreePool(m_pFileBuffer); m_pFileBuffer = NULL; } m_ulFileBufferSize = 0; // // retrieve file's size // status = KsQueryInformationFile(pFileObject, &StandardInformation, sizeof(StandardInformation), FileStandardInformation); if ( !NT_SUCCESS(status) || StandardInformation.EndOfFile.QuadPart > MAXLONG ) { goto error; } else { ULONG m_ulFileBufferSize = (LONG)(StandardInformation.EndOfFile.QuadPart); } // // allocate a buffer to hold file's content // m_pFileBuffer = (BYTE*)ExAllocatePoolWithTag(NonPagedPool, m_ulFileBufferSize, NULL); if ( m_pFileBuffer == NULL ) { status = STATUS_INSUFFICIENT_RESOURCES; goto error; } DbgPrint("(1) Bitmap data is %02X %02X %02X %02X", *m_pFileBuffer, *(m_pFileBuffer + 1), *(m_pFileBuffer + 2), *(m_pFileBuffer + 3)); // // read file's content to buffer // status = KsReadFile(pFileObject, NULL, NULL, &ioStatusBlock, m_pFileBuffer, m_ulFileBufferSize, 0, KernelMode); if (NT_SUCCESS(status)) { DbgPrint("(1) Bitmap data is %02X %02X %02X %02X", *m_pFileBuffer, *(m_pFileBuffer + 1), *(m_pFileBuffer + 2), *(m_pFileBuffer + 3)); } error: if ( !NT_SUCCESS(status) && m_pFileBuffer != NULL ) { ExFreePool(m_pFileBuffer); m_pFileBuffer = NULL; } if ( pFileObject != NULL ) { ObDereferenceObject(pFileObject); } if ( hFile != NULL ) { ZwClose(hFile); } return status; } Tag: Question about USBD Tag: 40887
 - 23
 - Detecting Print-to-File option from a printer driver plugin DLL Do anyone know how to detect Print-to-File option from a printer driver plugin DLL I like to be able to do this in Win9x, WinNT, Win2k and WinXP. Your advice is highl appreciated Thanks Anthony Tag: Question about USBD Tag: 40884
 - 24
 - Mirror Drv, EngDeviceIoControl problem This is a multi-part message in MIME format. ------=_NextPart_000_000D_01C3FCCD.814DCA40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi, I am writing a mirror display drive, I am tring to communicate between = the Display driver and the miniport driver using EngDeviceIoControl, BUT = of some strange reason when the mimiport gets the HwStartIO request = 'RequestPacket->OutputBuffer' has a pointer different then the one = passed through the EngDeviceIoControl call, when the EngDeviceIoControl = returns ( after the MirrorStartIO took place ) the content of the Output = buffer doesn't change ( although it was update in the Miniports = HwStartIO request ). What may cause this problem? The Display Driver code: **************************** DHPDEV DrvEnablePDEV( .... ) { ... DWORD dwDataPtr=3D 0; DWORD dwRetBytes =3D 0; DWORD dwRet =3D EngDeviceIoControl( hDriver, IOCTL_MIRROR_GET_SHM, NULL, = 0, &dwDataPtr, sizeof(dwDataPtr), &dwRetBytes); ... } The miniport code: ********************* UserModeMem_t g_SharedMemory =3D { 0 }; BOOLEAN MirrorStartIO( PVOID HwDeviceExtension, PVIDEO_REQUEST_PACKET RequestPacket ) { VideoDebugPrint((Trace,"StartIO Called.\n")); switch(RequestPacket->IoControlCode) { case IOCTL_MIRROR_GET_SHM: VideoDebugPrint((Trace,"IOCTL_MIRROR_GET_SHM =3D=3D = RequestPacket->IoControlCode.\n")); RequestPacket->StatusBlock->Status =3D NO_ERROR; *(unsigned long*)RequestPacket->OutputBuffer =3D (unsigned = long)&g_SharedMemory; RequestPacket->OutputBufferLength =3D sizeof(&g_SharedMemory); break; } return TRUE; } Thanks, Nadav. ------=_NextPart_000_000D_01C3FCCD.814DCA40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2800.1400" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY> <DIV> Hi, I am writing a mirror display = drive, I am=20 tring to communicate between the Display driver and the miniport driver = using=20 EngDeviceIoControl, BUT of some strange reason when the mimiport gets = the=20 HwStartIO request 'RequestPacket->OutputBuffer' has a pointer = different then=20 the one passed through the EngDeviceIoControl call, when the = EngDeviceIoControl=20 returns ( after the MirrorStartIO took place ) the content of the Output = buffer=20 doesn't change ( although it was update in the Miniports HwStartIO = request ).=20 What may cause this problem? The Display Driver=20 code: **************************** DHPDEV DrvEnablePDEV( .... = ) { ... DWORD=20 dwDataPtr=3D 0; DWORD dwRetBytes =3D 0; DWORD dwRet =3D=20 EngDeviceIoControl( hDriver, IOCTL_MIRROR_GET_SHM, = NULL, 0,=20 &dwDataPtr, sizeof(dwDataPtr), = &dwRetBytes); ... }   The miniport=20 code: ********************* UserModeMem_t g_SharedMemory =3D { 0 }; BOOLEAN MirrorStartIO(    = PVOID=20 HwDeviceExtension,    PVIDEO_REQUEST_PACKET=20 RequestPacket    = ) {  VideoDebugPrint((Trace,"StartIO=20 Called.\n"));  switch(RequestPacket->IoControlCode)  { &nbs= p;case=20 IOCTL_MIRROR_GET_SHM:   VideoDebugPrint((Trace,"IOCTL_MIRROR= _GET_SHM=20 =3D=3D=20 RequestPacket->IoControlCode.\n"));   RequestPacket->S= tatusBlock->Status =3D=20 NO_ERROR;   *(unsigned = long*)RequestPacket->OutputBuffer =3D=20 (unsigned=20 long)&g_SharedMemory;   RequestPacket->OutputBufferLe= ngth =3D=20 sizeof(&g_SharedMemory);   break;  }  return TRUE; } Thanks,    = Nadav.</DIV></BODY></HTML> ------=_NextPart_000_000D_01C3FCCD.814DCA40-- Tag: Question about USBD Tag: 40883
 - 25
 - Writing storage device driver for a flash PCI card Hello, I have a PCI adapter that has flash memory on it. I know everythings about this card, including the PCI manuf device ID, the PCI config register, and how to read and write from/to the flash memory. I want to write a driver for it such that when I open windows explorer I will see my card shown as drive D: (or E: if there is a CD rom in the system). I have been reading books, including Programming the MS WDM 2nd, Oney, and the DDK documentation from the lastest DDK for Window 2000/XP. Too much information has made me confused. 1. Should I write the SCSI mimiport driver that will layer below the scsi port driver? I read about this SCSI miniport things but it's really confused. I have thought about this but when I look at the functions that I have to implement shown in the DDK, it is too complicated. My PCI card does not use DMA and IRQ. It only need two 32-bit registers and a 4k memory range and an IO port that is part of the PCI config space. 2. What are the alternatives? Port driver? I thought my driver must be a port driver, since it must tell the system how to read and write to the PCI register. But it must contain a layer that tell the system that my drive is a D: drive. Anyhow, this whole thing is a mess in me right now. Can someone explain or show me what the best approach to this? Thank you so very much. Long Tag: Question about USBD Tag: 40880

Hi,

I'm developing a USB client driver and I found that USBD will keep
several USB ACK together until a bus driver thread was signaled, and
corresponding IRP completion routines will be invoked together.

I'm thinking of if there's any way I can get the information from the
bus driver about how many IRPs completion routine will be returned in this
session, which can let me to process whole these IRPs completion routine in
the last one.

Thanks in advance,
juji

Top