Device Drivers

Howto increase NT kernel stack size? (if it is possible at all)
Is there a way to set the kernel stack size somehow? To increase it by setting some value? In the registry, or elsewhere? The story: It is known the NT stack size to be 12k (approximately). There is a bug of NT when a call to MmGrowKernelStack fail with STATUS_STACK_OVERFLOW. (the bug is concerned with DLL emb... 28 Mar 2008 03:53

vhidmini.pnf is needed using filemon
I want to use devcon to install vhidmini sample driver according to reame. but it claims update failed always. so I use filemon to check which file it is accessing, found that vhidmini.pnf. this is generated by setup application when installing, why it didn't do that? TIA ... 27 Mar 2008 14:49

File System Driver, OLE Structured Storage problems-help!
Hi! I'm having a problem in my FSD, trying to support StgOpenStorage. Basically I can create a store okay, but when I go to try and read it with another call to StgOpenStorage call I get the error (0x80030050, already exists). More specifically, I first create a store with STGM_TRANSACTED, STGM_READWRITE... 26 Mar 2008 10:13

Handle call to FlushFileBuffers in UMDF driver
Hi, I have a UMDF driver which creates a virtual serial COM port. An application, which calls FlushFileBuffers with a handle to this COM port, receives error 50, which indicates that this request is not supported. The driver for the normal COM port, however, supports a call to FlushFileBuffers, at least this... 28 Mar 2008 23:09

KMDF Usb Multiple Configuration
hi all, I am writing a driver for USB to Serial device in KMDF, which has 2 configurations. After selecting 1 configuration and downloading the firmware, i am not able to switch to 2 configuration. I want to know whether KMDF supports multiple configurations and how to select the required configuration... 1 Apr 2008 08:27

mapping device memory to userspace through MDL direct io interface
I am trying to map the device memory(128MB) to userspace through direct IO interface using MDL's. I have choosen below approach for mapping the memory to user space: IoAllocateMdl for allocating buffer for MDL(with virtual address of the device memory, from MmMapIoSpace) MmBuildMdlForNonPagedPool MmMapLocke... 26 Mar 2008 12:25

USB composite device on Window 2000
We have developped one BDA driver for USB devices. The driver is able to handle single interface devices as well as multiple interfaces devices (USB composite devices). On windows XP and Vista platforms, everything works fine. On windows 2000 with single interface devices, it works fine. But on windows 2000 wi... 25 Mar 2008 15:14

Where can I get system tmf files for Windows Server 2003?
Are the tmf files for the OS trace providers publicly available? Couldn't find them online. I have collected a trace and need to transform into a readable log. Thanks. ... 26 Mar 2008 13:31

Supported way for installing NDIS filter driver on Vista
Hi, My Windows Installer package needs to install NDIS filter driver on Vista. DIFxApp looks good, because it supports Windows Installer. Does DIFxApp support also installing NDIS filter drivers? I succeeded in installing NDIS filter driver by adding 'DriverPackageType = Network' to the INF file. However, DIFx... 16 Apr 2008 14:48

usbser.sys- .INF - WHQL certification regarding.
We got a (device with USB port)hardware and we plan to use existing(system provided) USB2SER driver. This driver will be signed (as it is OS provided), But we have our own .INF file with some details adjusted in it. Now we would like to certify this adjusted driver via WHQL. Has anyone done this in the past an... 25 Mar 2008 16:20