Device Drivers

DTM common scenario stress w IO
I'm currently trying to create a submission for an USB wireless modem and the jobs : Common scenario stress with IO Sleep stress with IO fail immediatly with an error (see below). Same behavior on 3 different computers (HP, fujitsu, Intel-based). all QFEs are installed ERROR REPORT : Machi... 17 Apr 2007 11:30

NDIS 6.0 filter driver
I am writing the ndis 6.0 filter driver. This is my sample code for receive... PUCHAR data,info; CurrNbl = NetBufferLists; ULONG len,i,offset=0; while (CurrNbl) { Currbuff=NET_BUFFER_LIST_FIRST_NB(CurrNbl); while(Currbuff) { offset = NET_BUFFER_DATA_OFFSET(Currbuff); mdl = NET_BUFFER_FIRST_MDL(C... 23 Mar 2007 04:59

Winusb c#
Anyone got some samples code how to write a simple UMDF driver from c# ... 25 Mar 2007 14:21

DDK installation & Build environment in Visual Studio
I just setup latest Windows DDK When I tried to build my code it throws an error. stdafx.h(26) : fatal error C1083: Cannot open include file: 'usbioctl.h': No such file or directory fatal error C1083: Cannot open include file: 'winddi.h': No such file or directory I have the following message too: WI... 21 Mar 2007 10:59

Virtual Audio Device Driver Question
I need to create a device driver that is not really tied to hardware but rather to a input/output buffers provided by an external application. I was hoping to implement it using UMDF, but according to sample sources in C:\WinDDK\6000\src\audio it seems that my only recourse is to use WDM. So, my questions are... 14 Apr 2007 02:56

EngAlphaBlend crashes with non primary surface
I'm developing a mirror display driver, that punts all ddi calls (maked to the associated device surface) to the gdi-managed surface, created with the EngCreateBitmap. All works fine, except DrvAlphaBlend- EngAlphaBlend. EngAlphaBlend crashes in the win32k.sys (xp sp2) when called for the gdi-managed surface, but ... 19 Mar 2007 21:26

Running Windows XP and Windows Vista Professional in headless mode
All, Will Win XP or Vista Pro boot on a system with no graphics hardware i.e. no video graphics card and without integrated chipset graphics. I would have tried this and found out myself but at present all my systems have the integrated graphics in the chipset. Much appreciate if someone who has tried this can l... 16 Mar 2007 01:59

Spooler Notification, Vista x64 and splwow64
I have used the AsyncUI sample in the WDK: winddk\6000\src\print\asyncnotify as a model for notification from a driver running on Vista x64. This performs correctly when the print is initiated from a 64-bit application (say the 64-bit version of WordPad). When invoked from a 32-bit application, e.g. Word, the c... 15 Mar 2007 12:07

Issue with IoGetDeviceInterfaces()
I am trying to get list of hard disks in my computer with IoGetDeviceInterface(). Here is the code: DbgPrint( "About to list hard disk devices\n" ); nResult = IoGetDeviceInterfaces( (LPGUID)&GUID_DEVCLASS_DISKDRIVE, NULL, 0, &pDeviceList ); if (nResult != STATUS_SUCCESS) { DbgPrint( "IoGetDeviceInterfa... 15 Mar 2007 04:03

Is it a Bug for DTM in USB Digital TV Tuner Card Testing
Hi everyone, I develop the driver for a USB Digital TV Tuner Card. I exactly followed the instruction of DTM to do the test on Vista. But after creating the submission, I found I am not "offered" the TV Tuner Test and the USB Test. But if I select "View By Driver" in Device Console and select my device in th... 28 Mar 2007 10:20