Error parity UART

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- Previous
 - 1
 - Extra Processing on CompletionRoutine Hi everyone I'm writing a filter driver for a device, which I install a completion routine so that I could do extra processing after the IRP has been processed by the lower driver. AFAIK, I've got two options for my CompletionRoutine 1. Do whatever I need to do inside the CompletionRoutine, then return with STATUS_SUCCESS. 2. Queue a work item, which will later call IoCompleteReturn, and then return STATUS_MORE_PROCESSING_REQUIRED. I've tried successfully with method 1 (which is simpler). However, I'm not sure if that's safe, since sometime my processing could take up 1-2 seconds to do. Could anyone tell in which case should i use the 1st method, and which case should I use the 2nd one? And the IRP being processed inside my CompletionRoutine will never be canceled by anyone, right? Another question, assuming that the lower driver completes the IRPs in its work queue (PASSIVE_LEVEL) most of the time, am I safe to say that my CompletionRoutine would be called in PASSIVE_LEVEL most of the time too, or is it system dependent? Thanks for your help Hai. Tag: Error parity UART Tag: 70886
 - 2
 - IoQueueWorkItem accessing flag or return value? Hi folks, I am writing a custom kernel device driver that calls the RtlCheckRegistryKey to check the registry for a value on every keystroke. Basically I created a call-back function thread using the IoQueueWorkItem to get the RtlCheckRegistryKey to be ran at PASSIVE_LEVEL. I pass down a struct to the IoQueueWorkItem routine (IN PDEVICE_OBJECT DeviceObject, IN OUT strQueuedWorkItem *Context) That contains pIOWorkItem and certain flags etc. When the RtlCheckRegistryKey value is called I need to set a flag in the struct to say registryChecked. My problem is that I cant seem to get access to this structure and the set flag after it has been passed to the call-back routine even though I am passing the struct by pointer? Can anyone help me alleviate the problem or know of another way to access a global driver flag that I can check in the calling function to the IoQueueWorkItem Thanks in advance for the help, Cheers, Con Tag: Error parity UART Tag: 70883
 - 3
 - Safe to remove hardware icon Hi, My question is : How to get rid of the icon in system tray? I writed a driver for our usb device, and every when the device was attached to the PC, the icon would appear in system tray. How to hide the icon? Should I add something in my driver or in the inf file? Advance thanks! Tag: Error parity UART Tag: 70877
 - 4
 - IOCTL_STORAGE_RESET_DEVICE = error "incorrect function" The device is type CDROM, is not on a scsi bus and not a scsi device. This complies with the ioctl usage per MS. I code in pascal but the C version of devio I'm using would be I think ... DeviceIoControl(handle, IOCTL_STORAGE_RESET_DEVICE, NULL, 0, NULL, 0, &returned, NULL); ... devio returns an "incorrect function" error. The parameters are per MS as far as I can tell. I can substitute IOCTL_STORAGE_EJECT_MEDIA and it works fine. Thanks for any ideas, Bill Mudd Tag: Error parity UART Tag: 70867
 - 5
 - snetcfg crashing...please help I'm trying to revive about 4 year old VPN Client written as a shim and a virtual adaptor. Installation program does something like this: 1) snetcfg.exe -l .\shimmer.inf -c s -i no_shimmer followed by 2) install.exe netvpntp.inf *no_vpntp Those two programs were checked-into code base and compiled as part of the build. I don't know if they were customized or not. Now, when I try to run those commands from command line, snetcfg.exe crashes and install.exe fails. Here are the respective stack trace and failure msgs. snetcfg.exe crash: msvcrt!wcscpy+0x8 netcfgx!HrCiInstallFilterDevice+0x192 netcfgx!CFilterDevices::InstallFilterDevicesIfNeeded+0x184 netcfgx!CModifyContext::ApplyChanges+0x5cb netcfgx!CModifyContext::HrApplyIfOkOrCancel+0x24 netcfgx!CImplINetCfg::Apply+0x2f snetcfg!HrInstallNetComponent+0x12f snetcfg!wmain+0x14d snetcfg!wmainCRTStartup+0x12b KERNEL32!BaseProcessStart+0x3d install.exe output: .\install.exe netvpntp.inf *no_vpntp Search for Device ID: [*no_vpntp] Compare device ID: [ACPI\ACPI0003] Compare device ID: [*ACPI0003] Compare device ID: [ACPI\PNP0000] Compare device ID: [*PNP0000] ....... ....... Compare device ID: [USB\ROOT_HUB] Compare device ID: [USB\OTHER_ID] EnumDeviceInfo FAILURE: No more data is available. GetINFClass FAILURE: The system cannot find the file specified. Any help on why snetcfg is crashing would be greatly appreciated. Also, is the failure in install.exe because of snetcfg crash or is there some other reason ? I will try to cut and paste .inf files in the next msgs. thank you very much Ramesh Tag: Error parity UART Tag: 70863
 - 6
 - Disconnect network from Explorer... Hi, I need to intercept the "Disconnect Network Drive" It close the NetRoot and I need my redirector to close the session assigned to that drive... Where have i to looking for!? Thanks Ale Tag: Error parity UART Tag: 70861
 - 7
 - IFS Driver losck Excel file Hi, I've a FS Driver working as MiniRDR... It works fine with all files type but it fails on Excel file. Opening a remote "Excel 2003 only" file it always reports that file has been modified by other user and prompt me to save with a different name/overwrite... It only happens on XP + Office 2003 !!! I know it's not enought but maybe someone might help... I'll start with a remote debug on driver as soon as I wont got any suggest... Thanks Ale Tag: Error parity UART Tag: 70858
 - 8
 - USB drivers oddity on Win2K This is strange, and I'm wondering if it's something I've done. We have a USB composite device that has two endpoints, one of which is used as a debug channel and one which is a mass storage interface. The mass storage interface works just fine.. however.. When our system (Windows 2000) crashes, it sometimes forgets that it needs the "USB Composite Device" driver and we have to manually reinstall it! This is somewhat tedious and painful, as you might expect, since it looks like that driver has to be reinstalled for each port that we're putting one of these devices on (ugh). I've looked over our debug interface driver code and I can't find anything that would cause Win2K to decide it doesn't need the composite interface any longer. Has anyone seen anything like this before? Does WinXP handle composite devices better? Are there any known issues with composite USB devices under Win2K? All help appreciated, I'm running out of hair to pull out! Tag: Error parity UART Tag: 70857
 - 9
 - UNIDRV Banding Line Count error? Hello, I've got a rendering plugin with ImageProcessing doing RGB24 to CMYK custom halftoning. (That is, DevNumPlanes = 4, DevBPP = 1, DrvBPP= 24.) The conversion itself works fine, *except*: when UNIDRV is doing banding, if the last band is shorter than the previous bands, the difference (in lines) is added to the print as garbage raster data. E.G: for a 3300 line Letter page: ImageProcessing reports 4 x bands of 664 lines, then one of 644. What is printed is the 3300 lines expected, plus (664 - 644 =)20 lines of garbage. For a 3750 line page: ImageProcessing reports 4 x bands of 752 lines, then one of 742. The expected 3750 lines print, plus 10 lines (752 - 742) of garbage. It *looks* like when Unidrv splits the page into bands, it's not tracking the actual count when passing the bands to Output. Comments? Suggestions?? I'd rather not do the compression and output to spooler myself, if there's a known fix for this issue. Thanks! -- Joe C. -- J.C. Tag: Error parity UART Tag: 70856
 - 10
 - How to bind the adaptor to ndis. Ok ,I have a problem binding the adapter to ndis driver. Please somebody can look to my code and tell me whats wrong.Thanks !!! It is very important to me to know how to send raw packets. I have c++6. /////////////////////////////////////////////////////////////////// // test1.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include <windows.h> #include <winioctl.h> #include <stdio.h> int main(int argc, char* argv[]) { int copying=0,lol=0,lol2=999,bufsize,pointerull1=0,pointerull0=0,lungimeaaa=0; char output[1000]="",filtredoutput[1000]="",adapterid[524]=""; struct NDISPROT_QUERY_BINDING { unsigned long BindingIndex; // 0-based binding number unsigned long DeviceNameOffset; unsigned long DeviceNameLength; // in bytes unsigned long DeviceDescrOffset; unsigned long DeviceDescrLength; // in bytes }; struct NDISPROT_QUERY_BINDING ndisprot; ndisprot.BindingIndex=0; //Adaptor number bufsize =sizeof(ndisprot); HANDLE hDevice; // handle to the adapter to be examined BOOL validAdapter,bindadadapter; //handle DWORD bytesread,uiBytesReturned; // number of bytes for output buffer //Opening driver with create file hDevice = CreateFile("\\\\.\\\\NdisProt"/* drive to open*/,GENERIC_WRITE|GENERIC_READ, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); validAdapter = DeviceIoControl(hDevice/* device to be queried*/,0x12C80C/* operation to perform "Enumerate Adapters"*/,(void*) &ndisprot/*input buffer*/,bufsize/*input buffer size*/,output/*output buffer*/,lol2/*output buffer size*/,&bytesread/*number of bytes returned*/,NULL); /////////////////////////////////////////////////////////// if (!validAdapter) printf("Error\n"); do{ if(strncmp(output+copying,"\x00",1)) strncat(filtredoutput,output+copying,1); copying++; }while(copying<bytesread);//getting adapter id from iocontroldevice data do{ pointerull0++; }while(strncmp(filtredoutput+pointerull0,"\\",1)!=NULL); do{ pointerull1++; }while(strncmp(filtredoutput+pointerull1,"}",1)!=NULL); strncpy(adapterid,filtredoutput+pointerull0,pointerull1-pointerull0+1); /////////////////////////////////////////////////////////// lungimeaaa=strlen(adapterid); bindadadapter=DeviceIoControl(hDevice/* device to be binded*/,0x12C800/*operation to perform "Open Device"*/,(void*) &adapterid,lungimeaaa,NULL,0,&uiBytesReturned,0); if (!bindadadapter) printf("Error not binded %d\n",uiBytesReturned); printf("filtredoutput=%s\nsize=%d\nbytesread=%d\n",filtredoutput,lol2,bytesread); printf("Adapter ID =%s\n",adapterid); CloseHandle(hDevice); printf("Hello World!\n"); return 0; } /////////////////////////////////EOF/////////////////////////////// Tag: Error parity UART Tag: 70852
 - 11
 - Unload what SetupDiCallClassInstaller loaded After disabling/enabling a device with a call to SetupDiCallClassInstaller, my program's memory usage jumps from 900Kb to 9.5 MB (WinXP, according to TaskManager and ProcessXP). Msdn explains: SetupDiCallClassInstaller calls the class installer and any co-installers that are registered for a device or a device setup class. This function loads the installers if they are not yet loaded. The function also calls the default handler for the DIF request, if there is a default handler and if the installers return a status indicating that the default handler should be called. How do I UNLOAD the class installer and co-installers, that are eating my memory? Tag: Error parity UART Tag: 70851
 - 12
 - WHQL Failure during user defined functions I am running WHQL test and I am failing on test 2.2.3. What is happening is that it runs through the Windows functions (1-2048), but once it comes in to test the user defined functions it fails out the test. The nStatus is equal to 0. Do I need to do some kind of check that if it is equal to 0, return STATUS_INVALID_PARAMETER? Thanks for you help. ck Tag: Error parity UART Tag: 70847
 - 13
 - user mode printer drivers We had an existing kernel mode printer driver that we converted to user mode following documentation in the driver kit. The new user mode driver installs and runs correctly on Windows XP and Server 2003. Attempting to install the driver on the Vista beta fails with the following error message: "The driver that you are trying to install is not compatible with Windows Server 2003 family. Please contact the manufacturer for an updated version." Any ideas? Thanks. Tag: Error parity UART Tag: 70845
 - 14
 - Miniport's IOCTL interface performance issue. Hi all, I have written a NDIS 5.0 virtual miniport driver that send and receive packets from a usermode application via Direct IOCTL interface. All seems to be working well, except that the miniport drops packets if it receives more that about 3000/second. I have implemented a receive buffer in the miniport and it is clear that the miniport receive all the packets from the above protocols and queue them accordingly but the IOCTL interface seems to be to slow to handle all of the packets, so the queue overflows. Is there any way to improve the IOCTL interface's performance? Thanks, Amos Tag: Error parity UART Tag: 70836
 - 15
 - Driver design thoughts Yes, I'm a driver newbie... We have an open source kernel driver that needs accurate and high-resolution timestamps in order to stamp communication packets. Then, we have an external reference clock producing these timestamps. The problem is to forward these timestamps to the driver. My plan is to write a new driver that interfaces the clock (with serial based protocol) and exports a method for the existing driver in order to request timestamps when needed. This way the existing driver would stay as intact as possible. Does this sound reasonable to you? As far as I understand, my new driver would not be a real "device driver" representing any device, but a kernel-mode helper library. So, what type of driver it should be? Any other thoughts of architectural design? Thanks Ali Tag: Error parity UART Tag: 70832
 - 16
 - how to map drive letter (eg. H:) to usb (vid, pid)? the problem I encountered : what I know is logical drive letter(assume this drive based on usb) what I want is the serial(vid, pid) of the drive's underlying usb device Can anyone help ? Thanks a lot! Tag: Error parity UART Tag: 70831
 - 17
 - how to install a LM i want to write a inf file.so that i can install a printer with a LM. i write it as follows: LanguageMonitor=%LM% [DestinationDirs] //?? DefaultDestDir=66000 [SourceDisksNames.x86]//?? 1 = %disk1%,,, [SourceDisksNames.ia64]//?? 1 = %disk1%,,, [SourceDisksFiles]//?? PJLMON.Dll=1 [Strings] LM=="Language Monitor,PJLMON.Dll" However,the second time i installed the printer,the pjlmon.dll is not updated. I have to stop the spoolsv.exe and then delete the dll manually. Now I want to install the dll item for the printer from the curren directory to windows(WINNT)\system32 directory.what can i do? thank you - hy ----------------------------------------------------------------------- Posted via http://www.codecomments.co ----------------------------------------------------------------------- Tag: Error parity UART Tag: 70828
 - 18
 - error on CreateDialog thanks for all your hints. In fact,I have an app that implements a dll. the dialog belonging to a class is showed in the win32 ap sucessfully. that is ok! Surely I can create a dialog successfully without register a class. but it seems that is necessary when i want to add a icon for th dialog. it still failed! the differences between my test app and my ddk are: (1) ddk uses unicode, (2) the instance of ddk is the dllmain 1st input parameter,while the instance of my test program is winmain 1st input parameter, BTW,i dont want to use MFC or any class,only api funcs are used. Thanks - hy ----------------------------------------------------------------------- Posted via http://www.codecomments.co ----------------------------------------------------------------------- Tag: Error parity UART Tag: 70827
 - 19
 - Switch off Caps Lock from kernel mode driver Hi, Is there any way in kernel mode driver to check the status of capslock key and turn off if it is ON? I thought of accessing Bios address space 40h:17h for this purpose. But I don't know how to do that in Kernel mode. Please help on how to access 40h:17h address from kernel mode driver. Any other way to do the thing also welcome. I am a newbie. Thanks, Krishna Tag: Error parity UART Tag: 70824
 - 20
 - Installing Unsigned Drivers in Vista Hi, It seems that Vista Beta 2 (Build 5219) no longer allow unsigned driver set to be installed by default. Anyone knows any method to install an unsigned driver set at this stage if I wish to test for compatability? Thanks Thanks. Kee Seng Tag: Error parity UART Tag: 70823
 - 21
 - Thread Safe Is the NdisAllocatePacket and NdisAllocateBuffer function thread safe? Best Regards, -Niranjan Tag: Error parity UART Tag: 70822
 - 22
 - PCL to EMF How can i convert PCL to EMF, is there a way so that i can program this. Similar to this I am keen to know if I could convert Postscript(PS) to EMF with out depending on Ghostscript. Basically i would like to render PCL or PS files in my VC++ programs and try to extract the text from it. I am not bothered about the graphics with in these files and only bothered about the text with in. Somebody please help me with this. Thanks... Tag: Error parity UART Tag: 70813
 - 23
 - PCL to EMF conversion How can i convert PCL to EMF, is there a way so that i can program this. Similar to this I am keen to know if I could convert Postscript(PS) to EMF with out depending on Ghostscript. Basically i would like to render PCL or PS files in my VC++ programs and try to extract the text from it. I am not bothered about the graphics with in these files and only bothered about the text with in. Somebody please help me with this. Thanks... Tag: Error parity UART Tag: 70812
 - 24
 - scsi rescan caching Hi, Regarding the Microsoft own rescan.exe, as found at: http://support.microsoft.com/default.aspx?scid=kb;en-us;308669 I have found this very utility and particulary the CM_Reenumerate_DevNode() call, which is used within to do actual bus rescan, are behaving as if there is some caching involved. Test as follows: 1. run rescan over and over, from command line, as fast as you can (or write a shell script to do it) 2. Observe how long does it take, each time, for rescan to finish You will see the very 1st rescan does take some time to finish while all subsequent are returning IMMEDIATELLY. Then again, after 30 or some iterations, rescan AGAIN takes some time, as if it actually doing something. I made no device additions in that time. Machine was idle. Test is reproducible. Note I did above test with both NORMAL and CM_REENUMERATE_SYNCHRONOUS setting for CM_Reenumerate_DevNode(), same behaviour. Any thoughts on this? Thanks, Robert Tag: Error parity UART Tag: 70808
 - 25
 - A question about EngCopyBits When I implemented the DrvCopyBits function in the mirror driver, I just punted to EngCopyBits call, but unfortunately, I got a blue screen. Is there anything else that I should do before punting it back to EngCopyBits? Could any guru please give me some suggestions? Thanks, Tag: Error parity UART Tag: 70806
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 - 1
 - "build" not showing all build - fixed Several months ago, I noted that the DDK "build" utility would in some cases NOT show all errors encountered during a build. I have today found out that this is a side effect of installing the Windows DDK to a path containing spaces. Moving the DDK to a space with no spaces, allows all errors to appear as expected. If anyone is interesting in troubleshooting the DDK build utility, here's a quick way to reproduce it: 1) install DDK to C:\Program Files\Windows DDK 2) drop the 3 files listed below into C:\temp\ 3) Launch a build environment DOS window (in my case Windows 2000 checked) 4) in directory c:\temp, type "build -cZ" ==> The only error shown is an *.obj file missing. The *.log file, however, lists lots and lots of errors. Here are the files I used to reproduce the issue: makefile ========= !INCLUDE $(NTMAKEENV)\makefile.def sources ========= TARGETNAME=temp TARGETPATH=obj TARGETTYPE=DRIVER C_DEFINES=-DNDIS_MINIPORT_DRIVER SOURCES=temp.c temp.c ========= #include <ntddk.h> #include <ndis.h> NTSTATUS DriverEntry( IN PDRIVER_OBJECT DriverObject, IN PUNICODE_STRING RegistryPath ) { return STATUS_SUCCESS; } Good luck! Maybe one of these days the DDK will allow people to use spaces in their paths & filenames.... :-) / Hannes. Tag: Error parity UART Tag: 70804
 - 2
 - uDAPL on Windows? I need to write a driver for a set of PCI-Express boards and there has been a request for supporting uDAPL as the API for interacting with this hardware. The implementations of uDAPL on windows that I have seen appear to be in their infancy and there is a surprising lack of information out there describing what a driver needs to provide for services in order to support this API. Can anyone point me to either some really good documentation or tell me another API that is more "at home" on Windows that would accompliush the same thing (an RDMA type of aAPI). All the uDAPL stuff I have seen has been geared toward Linux support with windows being an afterthought. Thanks, Beverly Tag: Error parity UART Tag: 70799
 - 3
 - PFN_LIST_CORRUPT with P1=9A, W2K3 SP1 Hy All, I've got a PFN_LIST_CORRUPT with P1=9A on W2K3 SP1. This P1 value is not documented in DDK help (DDK V3790). Do someone know more about this? Many thanks in advance, Francois. Tag: Error parity UART Tag: 70798
 - 4
 - Problem writing extension unit plugin. I am writing an extension unit plug-in for a USB video class device. The example that I have used as a template, is the Microsoft provided example at [http://www.microsoft.com/whdc/device/stream/vidcap/USBVid-ext.mspx]. I have experienced quite many problems with this example, the IKsNodeControl described in the example can't be found in any new SDK or DDK, only in DirectX SDK from 2004. Has this interface been removed? I am quite uncertain how I should implement my CreateInstance() method and my QueryInterface() method. Does anyone have some idea or some hint of how I should do? Best regards: Leopold Tag: Error parity UART Tag: 70788
 - 5
 - error on CreateDialog The error code is 6 with GetLastError£¨£©£¬ First i registered a WNDCLASS£¬then I create a dialog¡£ But it failed¡£ My intent is to add an icon for the dialog in a dll. Someone can help me? Thanks. Code: wc.style = CS_HREDRAW | CS_VREDRAW ; wc.lpfnWndProc = (WNDPROC)WndProc ;//callback procedure wc.cbClsExtra = 0 ; wc.cbWndExtra = DLGWINDOWEXTRA ; wc.hInstance = tmp_hModule ; //dllmain input handle when attach process wc.hIcon = LoadIcon(tmp_hModule, MAKEINTRESOURCE(IDI_ICON1)); wc.hCursor = LoadCursor (NULL, IDC_ARROW) ; wc.hbrBackground = GetStockObject (LTGRAY_BRUSH) ; wc.lpszMenuName = NULL ; wc.lpszClassName = szAppName; //defined as TCHAR szAppName[] = TEXT("OPERATIONPANEL"); if(!RegisterClass(&wc)) return FALSE ; hwnd=CreateDialog(tmp_hModule,MAKEINTRESOURCE(IDD_TABLEDLG),0,WndProc); if(hwnd==NULL) { error=GetLastError(); wsprintf(str,L"error=%d",GetLastError()); MessageBox(NULL,str,L"CreateDialog",MB_OK); return FALSE; - hy ----------------------------------------------------------------------- Posted via http://www.codecomments.co ----------------------------------------------------------------------- Tag: Error parity UART Tag: 70787
 - 6
 - Virtual COM port emulation over USB Hi, I need to write a driver which supports virtual COM port emulation over USB (for win2k/XP). Can I make use of usbser.sys provided by Microsoft. Where can i get a complete description of usbser.sys. Does it provide Bulk mode transfer. How Can i add an upper/lower filter to usbser.sys. Thanks in advance. Tag: Error parity UART Tag: 70783
 - 7
 - found solution using OID_802_11_ADD_KEY solve the problem Tag: Error parity UART Tag: 70780
 - 8
 - FS driver Hi Guys I am created my own file system, i want "Windows Explorer" able to view/edit its file, how can i write a driver for it? Can i use c# to do that? thanks from Peter (cmk128@hotmail.com) Tag: Error parity UART Tag: 70772
 - 9
 - who can give some help about avstream driver. Hi, I have realized the usb camera driver which based on stream class framework,but now I want to re-realize it based on avStream framework. now I have two questions,who can help me. 1. AvStream's advantage to stream class. 2. if I want realize the usb camera driver based on avStream,which sample I can refer in DDK. thank you very much. Tag: Error parity UART Tag: 70770
 - 10
 - problem of providing my own version of malloc/free Due to some reason, I have to provide my own malloc/free/calloc functions so that other parts of the driver are happy. These functions are simply a wrapper around ExAllocatePool. However, when I compile it, the linker complains: "warning LNK4217: locally defined symbol _free imported in function xxxx". This is the free() function: void __cdecl free(void *p) { ExFreePool(p); } How can I get rid of this message? Thanks Tag: Error parity UART Tag: 70763
 - 11
 - sharing memory user mode & virtual video capture driver I would like to make an user mode application, send video to a virtual video capture drivers, based on "testcap" DDK sample. as this the driver send the video to 3rd party software. but I would like to know how to share memory with the drivers, to make my user mode application sending the video to the drivers... thanks, renan Tag: Error parity UART Tag: 70760
 - 12
 - Library to include at linking for FONTOBJ_pifi Hi... Could you please tell me what library I must include at linking for using of FONTOBJ_pifi function ? Thank you, Radu Cosoveanu Tag: Error parity UART Tag: 70755
 - 13
 - Hoooking only part of the FastIo routines Hi In a file system filter - can i hook only part of the fastio routines? and if so - how to fill the FAST_IO_DISPATCH structure? thanks. Tag: Error parity UART Tag: 70751
 - 14
 - Is it possible for the mirror driver does not support DrvBitBlt function? I'm writing a mirror driver based on the DDK mirror driver sample code. I read the documentation at the msdn library, and learned that if a driver manages its own surface, the driver must also, at a minimum, support DrvCopyBits, DrvTextOut, DrvStrokePath drawing functions. I noticed that DrvBitBlt was also in the DDK mirror driver sample code. When I hooked off the DrvBitBlt function, I got a blue screen. I'm trying to avoid implementing DrvBitBlt because of complexity. Could any guru tell if it is possible not to implement DrvBitBlt function in the mirror driver? Thanks, Tag: Error parity UART Tag: 70749
 - 15
 - Problem uninstalling keyboard driver Hi, I've written a keyboard driver for W2K/WXP which ties in with kbdclass and works fine. It happily sits next to a standard Windows keyboard driver in Device Manager. Problem is Device Manager gives no Uninstall option for my driver and DevCon reports "Remove failed" if I try to remove it. I've also written a touchscreen mouse driver which similarly connects with mouclass and sits next to a standard Windows mouse driver in Device Manager. This does have an uninstall option and can be removed using DevCon. Both drivers have a similar structure, but is there anything extra I should be doing in the keyboard driver to make it uninstallable? How should I go about uninstalling it? Thanks, Ade. Tag: Error parity UART Tag: 70745
 - 16
 - AVStream on Win98 Hi all, Help really needed... I have managed to build a AVStream driver for an USB device that runs on all platforms, except win98 se. According to the documentation of AVStream in MSDN, we can run any AVStream driver on any OS as long as the OS has DirectX ver8.0 and above. Exclamation mark is shown in the camera icon in the Device Manager and error code is "The NTKERN.VXD device loader(s) for this device could not load the device driver. (Code 2)". May I know is this problem due to AVStream? Please advise. Thank you very much. Tag: Error parity UART Tag: 70744
 - 17
 - Strange behaviour with USB selective suspend Hello I've connected a usb mouse in combination with our own usb device to the same root hub. Our device supports remote wake-up. The driver for our usb device sends down a request for usb selective suspend. Nothing happens. When I unplug the usb mouse, the system happely invokes the callback routine so the driver sets device power state D2. I find this behaviour a bit odd. Why does the usb mouse prevent our device from going into usb selective suspend? I also replaced the usb mouse with a different usb device but the behaviour remained the same. This is WinXP SP2. The implementation in our driver has passed whql. Tag: Error parity UART Tag: 70743
 - 18
 - how can I map logical drive letter to usb device serial(vid, pid)? the problem I encountered : what I know is logical drive letter(assume this drive based on usb) what I want is the serial(vid, pid) of the drive's underlying usb device Can anyone help ? Thanks a lot! Tag: Error parity UART Tag: 70740
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 - Crashes to Blue Screen when exiting a Game PerfNet Unable to open the Server service. Server performance data will not be returned. Error code returned is in data DWORD 0. Perflib The open procedure for service "WmiApRpl" in DLL "C:\WINDOWS\System32\wbem\wmia prpl.dll" has taken longer than the established wait time to complete. There may be a problem with this extensible counter or the service it is collecting data from or the system may have been very busy when this call was attempted. Tag: Error parity UART Tag: 70730
 - 20
 - this framework code possible in printer UI extension This is a multi-part message in MIME format. ------=_NextPart_000_0016_01C5CC3C.18D87470 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I'm putting together a proposal for a tool to send a document to PDF = conversion and then onto a content management solution. I'm looking at two different approaches, a conventional add-in, which = first collect some document properties from the user, then sends the = document along with the document properties to Windows service which = uses PDF conversion component and via a Web service to store the = converted PDF to the CMS storage.=20 The second approach, which is why I'm posting to this newsgroup would be = to create a virtual print driver to do the same thing. print driver is = certainly the more elegant approach, and it makes the conversion to PDF = simple or as the conversion component will only need to deal with one = type of input (EMF) A few questions: Is this approach possible? Is it recommended?=20 One of these steps in the process is to present a user interface to the = user to collect some document properties, after a little bit of research = in the DDK, it looks like DrvPrinterEvent is the appropriate place to do = this, no? Is it possible to use managed C++ (C++\CLI) for the = implementation? Clearly I still needs to do a lot more learning about the printer driver = architecture, but answers to the above questions will help me greatly in = deciding which approach to take. Thanks, --Scott W. ------=_NextPart_000_0016_01C5CC3C.18D87470 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 6.00.2900.2722" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV> I'm putting together a proposal for a tool to send = a document to PDF conversion and then onto a content = management=20 solution. I'm looking at two different approaches, a = conventional=20 add-in, which first collect some document properties from the = user,=20 then sends the document along with the document properties to = Windows=20 service which uses PDF conversion component and via a Web = service to=20 store the converted PDF to the CMS storage. The second approach, which is why I'm posting to = this=20 newsgroup would be to create a virtual print driver to do the same=20 thing. print driver is certainly the more elegant approach, and it = makes=20 the conversion to PDF simple or as the conversion component will only = need to=20 deal with one type of input (EMF) A few questions:     = <FONT=20 face=3DArial>Is this approach possible? Is it recommended? One of these steps in the process is to present a = user=20 interface to the user to collect some document properties,<FONT=20 face=3DArial> after a little bit of research in the DDK, it looks like=20 DrvPrinterEvent is the appropriate place to do this, = no? =20 Is it possible to use managed C++ (C++\CLI) for the = implementation? Clearly I still needs to do a lot more learning = about the=20 printer driver architecture, but answers to the above questions will = help me=20 greatly in deciding which approach to take. Thanks, --Scott W.</DIV></BODY></HTML> ------=_NextPart_000_0016_01C5CC3C.18D87470-- Tag: Error parity UART Tag: 70729
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 - USB stack gives misleading indications when Polling Interval not 1 I am seeing some incorrect indications from the usb stack (XP SP2) when my device indicates a Polling Interval of 2 on its isochronous endpoint: My hardware has a high speed (not high bandwidth) iso In endpoint; it generates fixed size 1000-byte packets at an interval very slightly over 250uS. I have taken the isousb sample from the 3790 DDK, and adapted it to work with my configuration. Because of the data rate, it seemed sensible to increase the polling interval on that endpoint so as to only poll every other microframe, so I set a value of two. I use the test app (rwiso) to read an amount of data from the device, and the driver output is as follows: IsoPacket[0].Length = 0x03E8 IsoPacket[0].Status = 0 IsoPacket[1].Length = 0x0000 IsoPacket[1].Status = 0 IsoPacket[2].Length = 0x03E8 IsoPacket[2].Status = 0 IsoPacket[3].Length = 0x0000 IsoPacket[3].Status = 0 IsoPacket[4].Length = 0x03E8 IsoPacket[4].Status = 0 IsoPacket[5].Length = 0x0000 IsoPacket[5].Status = 0 IsoPacket[6].Length = 0x03E8 IsoPacket[6].Status = 0 IsoPacket[7].Length = 0x0000 IsoPacket[7].Status = 0 IsoPacket[8].Length = 0x03E8 IsoPacket[8].Status = 0 IsoPacket[9].Length = 0x0000 IsoPacket[9].Status = 0 IsoPacket[10].Length = 0x03E8 IsoPacket[10].Status = 0 IsoPacket[11].Length = 0x0000 IsoPacket[11].Status = 0 IsoPacket[12].Length = 0x03E8 IsoPacket[12].Status = 0 IsoPacket[13].Length = 0x0000 IsoPacket[13].Status = 0 IsoPacket[14].Length = 0x03E8 IsoPacket[14].Status = 0 IsoPacket[15].Length = 0x0000 IsoPacket[15].Status = 0 IsoPacket[16].Length = 0x03E8 IsoPacket[16].Status = 0 IsoPacket[17].Length = 0x0000 IsoPacket[17].Status = 0 IsoPacket[18].Length = 0x03E8 IsoPacket[18].Status = 0 IsoPacket[19].Length = 0x0000 IsoPacket[19].Status = 0 IsoPacket[20].Length = 0x03E8 IsoPacket[20].Status = 0 IsoPacket[21].Length = 0x0000 IsoPacket[21].Status = 0 IsoPacket[22].Length = 0x03E8 IsoPacket[22].Status = 0 IsoPacket[23].Length = 0x0000 IsoPacket[23].Status = 0 So this suggests that every other packet is coming back zero-length. However, when I look at the entire buffer from the user-space app there are no gaps - every piece of data *is* there (and correct) from beginning to end - all 24 packets. The return value from the read() call is 12*1000 yet the whole buffer has in fact been written. I've also used SnoopyPro to examine what the stack thinks the packets contain, and diagrammatically (and very much simplified), this is what I'm seeing (with "." indicating a zero-length packet): According to stack Actually in buffer 0 1 2 3 0 1 2 3 . 4 5 6 7 8 9 A B 8 9 A B . C D E F 0 1 2 3 0 1 2 3 etc This is a problem to me because I will occasionally get genuine zero-length packets (due to the data generation being asynchronous to the usb frames), and I need to be able to detect them. The USBD_SHORT_TRANSFER_OK flag is not set. This only happens when the Polling Interval is 2; when it is set to 1 then the behaviour is as expected (albeit interspersed with genuine zero-length packets, generated by the h/w when it is polled but has no data available) I'm running a free build XP SP2, but with checked versions of ntoskrnl, hal, usbport.sys, usbccgp.sys and usbd.sys (also from an SP2 version). Is it a bug in the usb stack? There is a report of this kind of problem - http://support.microsoft.com/?kbid=837371 - but although it is dated only a few days ago, it seems to be saying that the issue is fixed in SP2; and I have newer versions of all the files indicated (though why don't I have usbccgp.sys - isn't that needed for composite devices??) [I'm having trouble with my Win2K installation at the moment, so I've not had a chance to compare]. In fact, as I repeat the test today to check my results (before hitting "Send"), I'm *also* now seeing an additional effect: a packet with a length of 1000, but contents all zero - but, again, without any loss of data - where there *is* data in the buffer it is continous and valid (the data stream contains a count to help spot discontinuities). What with the results I was seeing yesterday plus this additional weirdness I'm now seeing, I'm wondering if there are still issues with non-one values of polling interval? Anyone got any thoughts? Can anyone at MS confirm whether 837371 really is fixed? Thanks. Tag: Error parity UART Tag: 70727
 - 22
 - Windows Xp and interrupts. I'm writing a driver for programming performance counters in PIV processor. I've wrote bus driver which enumerates devices and allocates resources and function driver which will do main job. I'm having a problem with allocating resources for functional driver. Currently my IRP_MN_QUERY_RESOURCES handling function looks like this: static NTSTATUS HandleQueryResources(PDEVICE_OBJECT pdo, PIRP Irp) { NTSTATUS status = Irp->IoStatus.Status; PIO_STACK_LOCATION stack = IoGetCurrentIrpStackLocation(Irp); KdPrint((DRIVERNAME " (PDO) - HandleQueryRequirements\n")); PCM_RESOURCE_LIST resourceList; PCM_FULL_RESOURCE_DESCRIPTOR frd; PCM_PARTIAL_RESOURCE_DESCRIPTOR prd; ULONG resourceListSize; // // Following code shows how to provide // boot I/O port resource to a device. // resourceListSize = sizeof(CM_RESOURCE_LIST); resourceList = (PCM_RESOURCE_LIST)ExAllocatePoolWithTag (PagedPool, resourceListSize, APICBUS_POOL_TAG); if (resourceList == NULL ) { KdPrint((DRIVERNAME " (PDO) - HandleQueryRequirements: STATUS_INSUFFICIENT_RESOURCES\n")); return STATUS_INSUFFICIENT_RESOURCES; } RtlZeroMemory( resourceList, resourceListSize ); resourceList->Count = 1; frd = &resourceList->List[0]; frd->PartialResourceList.Count = 1; // // Get pointer to first Partial Resource // Descriptor in this FRD. // prd = &frd->PartialResourceList.PartialDescriptors[0]; prd->Type = CmResourceTypeInterrupt; prd->ShareDisposition = CmResourceShareShared; prd->Flags = CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE; prd->u.Interrupt.Level = 3; prd->u.Interrupt.Vector = 64; prd->u.Interrupt.Affinity = -1; Irp->IoStatus.Information = (ULONG_PTR)resourceList; KdPrint((DRIVERNAME " (PDO) - HandleQueryRequirements: STATUS_SUCCESS\n")); return STATUS_SUCCESS; } But IRP_MN_START device in my function driver doesn't get any resources(either translated or raw). Can anybody explain me haw handle this IRP correctly? And please anybody explain to newbie meaning of Interrupt.Level, Interrupt.Vector fields? How should I implement IRP_MN_QUERY_RESOURCE_REQUIREMENTS handling function? Best Darek Tag: Error parity UART Tag: 70724
 - 23
 - MSVAD Install Hi, When I install MSVAD driver, I need reboot machine to active MSVAD driver. Why should PC reboot after MSVAD Installed? Can I do not reboot to active MSVAD driver? Thanks. Tag: Error parity UART Tag: 70723
 - 24
 - Converting Win2k monolithic printer driver to a Longhorn driver - Installation problems Converting Win2k monolithic printer driver to Longhorn driver - INSTALLATION Problems.. The current monolithic(not using Microsoft Universal Printer Driver Model) Windows printer driver has been converted to "user-mode" and installs/runs fine on Win2k, WinXP, and WinServer2003. However, for "Longhorn Beta1" the following error message is given during an attempt to install the driver: Error Message: "The driver that you are trying to install is not compatible with Windows Server 2003 family. Please contact the manufacturer for an updated version." It appears (according to the following windows log files: setupapi.app.log, setupapi.dev.log) that the installation (via the Add Printer Wizard) successfully copies the driver files to a system location, but immediately after that point, the error occurs and the installation is cancelled. I suspect that when the "loader" attempts to load a driver DLL (toward end of installation), it cannot resolve a reference in the DLL to some Win API function (NOT IN Longhorn), and therefore the DLL is not loaded. Normally, one would get some kind of error message that indicates a particular function could not be found/resolved; but this may not be the case while using the "Add Printer Wizard". I placed calls to "MessageBox(-)" at several "entry-point" functions in the DLLs (like DllMain, DLLInitialize, WinMain, DrvQueryDriverInfo, etc.) but these are NOT reached during installation on "Longhorn"; however, they are reached during installation on the other OS's. Any Ideas? Rudy Tag: Error parity UART Tag: 70716
 - 25
 - USB Problem when using a Philips ISP1521 based hub We are using a TI TUSB3410 USB to Serial chip and recently identified an issue when using this device with a Philips based ISP1521 based Hub. On the USB-IF Developers Discussion Forum a post was made that matches our problem exactly. This post also has a statement that Philips apparently made which states the issue is that the Windows USB host controller driver. Basically Philips states that the host controller driver is not terminating Start Split transactions with a Complete Split transaction. For the original posting see http://www.usb.org/phpbb/viewtopic.php?t=6636&highlight=tusb3410&sid=92ad332153ccee7ed3babd646910e98d. We have been told by TI that Microsoft acknowledges that this is a bug and that it will be fixed in Vista. However in the meantime our customers are experiencing problems when using our hardware with ISP1521 based hubs. My question is, how can we work around this issue? Is there something we can do in our application or in the driver to cause the host controller driver to terminate the split transaction? Thanks in advance for any help in resolving this issue. - Steve - Tag: Error parity UART Tag: 70696

Hi

Development tool:
visual c++ 2005 express

Problem (s):
1) I'm sending 8 bits + parity + 1 stop bit (9600 bit/s) using the UART,
how can I read the byte, even if there is a problem with the parity, because
the byte with parity error is replace by the byte defined in ParityReplace!

2) I'm using timers with the UART, but sometimes, I donÂ´t read the bytes one
by one, using the events.
How can I put the events of the UART prior to the timers, so that I can't
fail one read.

If some one can help, i appreciate very much.

Best Regards
Vitor Amorim

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