Device Drivers

problem in porting 32 bit application in x64...
hi... i m using an 32 bit allication to load a driver ...but when i m trying this application in X64,its failing at SetupDiCallClassInstaller(DIF_REGISTERDEVICE, DeviceInfoSet, &DeviceInfoData) with error code e0000235 can any body plz tell me y its happening so???? Regards mani ... 3 Sep 2007 05:53

kernel level com port I/O
Hi, I'm trying to interface to a usb to serial com port at the driver (kernel mode) level. I need to open it, read, and write from it. I have looked around and haven't found any obvious sample code on how to do this at the kernel level (tons of samples at user mode). I have tried using ZwCreateFile status =... 21 Aug 2007 10:20

Problem with Microsoft Update for BisonCam, NB Pro driver
I am not a devloper, but i want people to look into this, The Microsoft update for the BisonCam, NB Driver seems to be flawed. I currently use Microsoft Windows Vista. The issue seems to cause Microsoft Windows Live messenger to hang, No error codes unfortunately. below are my specs, Anyone interested in fixin... 10 Aug 2007 03:08

FltGetVolumeFromName() failure for USB drive
We have an intermittent problem with FltGetVolumeFromName() not finding a volume on a USB drive by its drive letter. Return code is STATUS_FLT_VOLUME_NOT_FOUND. It'll fail for a while, and then work for a while. Has been seen on two systems: one XP, one Windows Server 2003. Slightly different in one way th... 10 Aug 2007 12:10

Vista QOS testing
Hello, Does any one run qossample.exe that comes with SDK? I want to test QOS on Vista network, but this tool shows error message like qossample.c:410 - QOSAddSocketToFlow failed (50) Any ideas would be greatly appreciated. BR, Paul Simon ... 8 Aug 2007 08:28

Bugcheck 10D if MmUnmapLockedPages is called between an ISR and a
Hi All, I am using KMDF/WDF and Windows XP SP2. My device has some IOCTL operations that wait for hardware and some that map/unmap memory for user space access. I get a Bugcheck 10D (0x00000002,0x86282754,0x00000000,0x8621C370) under these conditions: - One IOCTL operation is in progress waiting for a ... 8 Aug 2007 17:51

regarding the smart card reader driver not getting any IOCTL calls.
Hi , I have a USB smart card reader device for which i am writing the driver in KMDF , The driver gets installed properly as a smart card reader driver. But the problem is i am not getting any ioCTL calls from the resource manager ...can any body tell me the reason behind it why is this happening??? The ... 7 Aug 2007 11:15

Virtual SCSI miniport
We have developed a virtual SCSI miniport driver, which has been working under 2k/xp/2k3. The problem occurs when we put it on some servers with SAS disks. There are two servers: S1: IBM server with Xeon CPU and 1GB RAM equipped; S2: AMD server with AMD 64 CPU and 4GB RAM equipped. Windows we have install... 7 Aug 2007 10:44

TDI and IPv6
Hi, I want to open a udp ipv6 connection in XP kernel. I am using the following code but it fails in zwcreatefile with status 0xc0000207. Apparently the tcpip!GetAddress routine return error if AddressType != TDI_ADDRESS_TYPE_IP. Any ideas ? How should I open ipv6 transport address ? A sample code would be h... 7 Aug 2007 10:44

SendAsyncNotification and Vista
Hi, I was creating a dummy port monitor and tried calling SendAsyncNotification() and SendAsyncUINotification() from that in Vista. SendAsyncUINotification() was working fine and I was able to see the balloon notification. But SendAsyncNotification() works only if I delete the printer. In other scenarios, ... 26 Jul 2007 04:19