Look at the usbview sample in the DDK (<ddkroot>\src\wdm\usb\usbview) kumar ===== This posting is provided "AS IS" with no warranties, and confers no rights. "JP" <jdupuis@sbc.com> wrote in...

On page 286, the sample demonstrates a driver layered at the middle of a driver stack calling IoCancelIrp on an IRP passed from upper driver. I have no problem with the logic in the sample code but I...

Hi all, OS:-Win98 SE Driver:- Wdm Hardware- 16-bit memory PC Card on Elan's pcmcia adapter(pci-to-pcmcia bridge) I have done a pcmcia win98(wdm) driver for 16 bit memory PCmcia card...and it works...

In the dispatch function, I queued an Irp and marked it IoMarkIrpPending(). Then in the dispatch function itself, because of someother action, I have decided not to pend the Irp and to complete the...

Does anyone know of an existing "null" audio (software) device that can install without hardware and provide the interfaces that programs such as Windows Media Player need to see in order to believe...

You should be able to stop even boot-start drivers. I don't think there is any such restriction on NT4.0. I would suggest you take a sample driver from the DDK (src\general\cancel) and try out. It...

Hi, I builded a filter driver for USB devices and now I'm trying to load the filter driver for a particular device. Therefore, I have to change the INF like this: ; INF.TXT ; ; This file is part...

I'm trying to create a single virtual serial port using a function driver. But I am doing something wrong. Function : DrvAddDevice(DriverObject,pDO) 1.IoCreateDevice(DriverObject,...

(another newbie question) Hi, How should I bring a message on screen from a filter driver. I would like to use something like DbgView but I don't know what command outputs a message. I have tried...

Is the dashed pen something your driver supports? Does the problem repro with say, the msplot sample from the DDK? What do you mean by "the crash occurs outside of the driver"? It is difficult to...

I work in a huge corporate environment and we have recently made all of our users local power users of their machines. This is working out great for us except for our traveling users who go to...

Is this your own duplex UI or the standard property sheet? The standard property sheet will automatically disable the duplex printing preferences if the duplex unit is not installed. So you should be...

I have a mysterious problem with my USB printer. This happens in W2k SP2 and XP SP1: When I switch off power the spooler Window will show in the Header bar "Use Printer Offline" and when I switch...

I'm new to the DDK. Can I perform 64-bit PCI transfers on a 32-bit platform? I'm looking at the HAL functions for accessing ports and memory registers. I see WRITE_REGISTER_BUFFER_ULONG,...

Do not make *any* assumptions about the number of fragments that make up any send or receive packets. Write code that can handle *any* situation (including worst case = one byte per fragment). Copy...

Can you explain a little more about "netroots"? Shawn "Maxim S. Shatskih" <maxim@storagecraft.com> wrote in message news:uPuK2iQKDHA.1656@TK2MSFTNGP12.phx.gbl...

No, there is no such guarantees. Also note that TCPIP is not WinSock. It is below WinSock. So, you will need to write your own code for IP reassembly. -- Maxim Shatskih, Windows DDK MVP StorageCraft...

"Alex Pranke" <anuofgod@hotmail.com> wrote in message news:07a601c35d9d$13456730$a601280a@phx.gbl... These functions cannot require admin rigths. Even non-admin users can open device manager,...

I have seen no documentation that suggests that you can make the assumption that all fragemented packets will be sent using a single call to MiniportSendPackets. Don't base any production code on...

Amazing! What OS and what version of 1394 stack? Call IoCancelIrp, if this does not help - then you have hit a major driver bug. -- Maxim Shatskih, Windows DDK MVP StorageCraft...