Device Drivers

StorPort SRB field SenseInfoBufferSize being changed
It appears the SCSI StorPort driver either changes the sense buffer size, or double buffers it. When a SRB is submitted to the StorPort driver with a sense buffer size of 255 bytes, it always ends up in the mini-port driver with a length of 20 bytes. My device has extended sense data that is larger than this.... 28 May 2008 15:02

Display driver drawing corruption
We've developed a display driver whose purpose is to capture all GDI drawing operations, rasterize them and send them to a remote device with a display. For various reasons we decided not to implement a mirror driver, but instead a framebuffer display driver (using system memory) where we use the Eng* APIs to d... 29 May 2008 10:46

sharing memory with user and kernel
Hello, I developed an application in user mode that capture audio data and stores the data in shared memory using CreateFileMapping and MapViewOfFile. This memory is accessible via an API i've developed (standard DLL stuff). I'm now working on a virtual mic driver (MSVAD pcemx example drom DDK) and my intent... 30 May 2008 10:19

KsPinGetLeadingEdgeStreamPointer returns NULL
Hi! I've found that KsPinGetLeadingEdgeStreamPointer always returns NULL while the driver is running under Server 2003 SP2 with PAE enabled on computer with more than 4GB RAM. The capture board implements BusMaster S/G DMA with maximum transfer size approx. 486K. The debug version of ks.sys doesn't print out ... 28 May 2008 22:53

Accessing DDC Bus from non-video driver
I need to make Int 10 calls from a driver in order to access a DDC bus connected to a 965 MCH in order to control some GPIOs on an I/O expander chip. My understanding is that only a video miniport driver can make Int 10 calls. Is there a way to do this from a non video driver? Do I need to write a filter dri... 28 May 2008 12:40

RSS Support in MIniport Driver
Hi All, Im implementing RSS Support in the Miniport Driver. But im not receiving any of the RSS OID's. DDK: 6001 OS-Win 2008 NDIS6.1 For the general attribute's RecvScaleCapabilities,im filling the following values RecvScaleCapabilities.CapabilitiesFlags=NDIS_RSS_CAPS_MESSAGE_SIGNALED_INTERRUPTS | NDIS... 28 May 2008 11:53

Question about devcon failure when using cmdUpdate
I am trying to use devcon, based on the code included in the winddk 6001.18001 sample, to install a driver. I am using the install command in this manner: devcon install pppwinnt.inf *PNPc033 This is the output I get (with some added printfs for more information): after SetupDiCreateDeviceInfoListDevice nod... 28 May 2008 10:18

win xp parport.sys in system process hogging cpu while printing
Hi, whenever i try to print i see it happening, it;s for the most of time while printing simple text from wordpad or others. Thought maybe someting witch setting lpt, and tried from standard to ecp an dfrom not using irq to use irq allways the same, stack doesn't show anythig unusuall or third party driver, onl... 28 May 2008 08:36

Identify pagefile and hiberfile sectors (LBAs) in diskperf;
Hi, how can determine if the sectors (LBAs) being addressed belong to pagefile or hiberfile? Or to be more generic how to determine if they belong to a given file name? Thanks. ... 28 May 2008 07:37

NIC Driver Developer for MAC
Hi All, I am looking for a Network Driver Developer on OSX. Contract opening Location : South Bay Area MAC ~ Network driver (NIC) on OSX This is what I know of opening:- Client is looking for a candidate who has worked with V 4/5, I/O Kit and NIC Driver! Thanks Nidhi Ratan ... 28 May 2008 02:55