Hi everyone, I found that in MouFilter_ServiceCallback the input data always contain one packet (InputDataStart + 1 = InputDataEnd) but *InputDataConsumed always = 0 (I don't know if this parameter...

My driver needs to find out checksum & timestamp for other drivers in the system. Is there *any* way to do this from within a driver? Any input appreciated, / Hannes.

Hello, I am creating a submission for a hardware product, a PCI device, for my company and I have two questions. 1. During creating the submission as a 'First-time hardware and driver...

"Long Ta" wrote: They could change the web interface from time to time. Check whether you now need to register your IDs *before* making any submission. No this is normal for many driver types,...

Respected Sir, I want to know as to, what necessary changes should I make to make sure that, the total disk size of ramdisk sample software must support to any extent. As, in my case, it is the...

I thought I had this DIFxApp thing under control, but I just upgraded to version 2.0 that was just released (I need the x64 support) and it seems to have broken something. The install now aborts with...

My driver is using VideoPortCreateSecondaryDisplay() to add 3 secondary displays (XP Sp2). I'm finding that my VidGetVideoChildDescriptor() never gets called with HwDevExtn for any of the secondary...

Hi, I have a disk class filter driver. I need to send some data to another machine through network. How I can do network operations from kernel mode? Please help me. Is there any sample code...

I am encoutering hang due to my FSF driver. When i see the hang i always find "watchdog!WdUpdateRecoveryState: Recovery enabled." statement in the debugger. What is it?

Hi, I wrote two bda filters (tuner/demod, and capture), but now, I puzzled where could I capture the stream from device. First, I thought that it should be in tuner/demod filter. So I reviewed the...

Dear All, I would like to retrieve the status of an USB printer under Windows XP so that it be possible to know *before* printing whether the printer is operational. I had a look at the Microsoft...

Dear All, I would like to communicate directly with USB and parallel local printers using CreateFile, WriteFile and ReadFile functions from the Windows API. To retrieve local printers connected to...

Hello All, I have a question on EXPORT_DRIVER. I have read the related articles and the questions raised on the same and the answers also for the same. But, I could not get the answer to...

Can anyone here point me to some examples (preferrable including code) of how to retrieve display information through DDC? Since DDC calls happen in RTM, they are not supposed to be allowed...

Hi there folks... was wondering if I can get my D3d driver to call MmAllocatePagesForMdl. I currently have my WinXP D3D compiled and linked (which contains a call to MmAllocatePagesForMdl), but the...

I know that files I'm interested in are open for write access of some sort. I'd like to open those files but merely for read access prior to a write, so I open it like...

I am trying to use __try/__except to catch crashes that may occur in my driver. It works great for NULL pointer access, but not for a plain bad memory access. If the driver accesses 0xfefefefe (just...

Hi, I am bit new to driver programming. I would like to know how to prevent context switching between threads. Here is the scenario: Thread A is running at PASSIVE LEVEL, driver gets into some...

When our USB function driver is used in a loop or for a long transfer of data (MBs) on a Bulk endpoint, after a short period of time the I/O status (IRP) returns a failure but the URB status is...

Hi, I am bit new to device driver programming. I would like to know how to prevent context switching between threads. Here is the scenario: Thread A is running at PASSIVE LEVEL, driver gets into...