STATUS_ACCESS_DENIED causes file deletion (minifilter driver) 2 276 (12/23/2009 3:47:02 PM)
Hi, I’m developing filesystem minifilter driver to control access to files. In some cases I need to prevent write access to file. To do so I return STATUS_ACCESS_DENIED from the preoperation callback routi...
Utf

send ioctl directly to driver object without regard to device object? 2 236 (12/23/2009 11:04:29 PM)
Hi, Is it possible to send IOCTL (or otherwise communicate) directly with a driver object that may have no device objects? This would be in lieu of creating a "control" device object. TIA!! ...
David

Installation of WinUSB on XP Pro SP2 3 862 (12/18/2009 4:42:04 PM)
I'm currently trying to get WinUSB installed on my XP Pro SP2 machine and every time I try and install the device and point to where the .inf files are it says it can't install the hardware because it can't ...
jajones

Problem Handling Fastio in an encryption driver 2 234 (12/23/2009 6:22:01 PM)
We are doing a encryption/decryption using a minifilter filesystem driver. To accomplish this, we are catching IRP_NOCACHE on the writes and reads and processing them before they are written to disk. Inst...
Utf

WinUSB Error 121 - semaphore timeout 1 650 (12/22/2009 10:58:02 AM)
Asking WinUSB to read a large buffer will fail with error 121 - "The semaphore timeout period has expired" which means "timeout". It looks like this result means that the function failed to fill the entire ...
Utf

Warnings with Inf2Cat.exe for new INF files 1 800 (12/21/2009 9:09:01 PM)
Hello we are seeing some new warnings with the INF2cat tool, with our newly formatted INF files. We started getting the warnings when we changed the format of our INFs to have only one bus enumerator per l...
Utf

Modify an old Device Driver for MISSIL 4302HD Mp4 Player? 7 515 (12/19/2009 7:21:01 PM)
Hi! I recently purchased a MISSIL 4302HD MP4 player that is really cool, but Windows 7 does not revognize it. When I tried to install the .inf files manually, it also errored. I have posted the entire...
Utf

DeviceIoControl hangs after device removal 8 321 (12/16/2009 4:52:02 PM)
Hi, I'm faced with something weird when calling DeviceIoControl in a user application on my UMDF driver based on the osrusbfx2 driver. What happens is that if I unplug my usb device and a user application...
Utf

Server 2008 R2 boots to the recovery menu 2 1362 (12/16/2009 5:38:01 PM)
I have a storport driver that loads just fine on various flavors of Windows 2003 and 2008. However when I use 2008 R2, the system will only boot to the recovery menu. I can boot the "last known good" con...
Utf

How do I dig deeper into a crash dump with WinDbg to idenify locku 8 289 (12/18/2009 6:22:01 PM)
Using KMDF 1.7 to update an OLD NT 4.0 driver that worked on Win2000 sp4 to now work on Win XP sp3, I was able to get the driver to the testing phase in 6 weeks while learning the KMDF (the KMDF is one huge...
Utf