Device Drivers

Green screen by video capture driver
The problem lies in driver. The driver return image whichs value are all zero. Y = 0, U = 0, V=0 means color green in YUV space. "Tim Roberts" wrote: Lono <Lono(a)discussions.microsoft.com> wrote: I wrote a video capture driver. During testing, I found it strange that sometimes a green screen ... 28 May 2008 03:42

Pausing DriverEntry routine
DriverEntry includes two consecutive writing to port operations. There must be 100us pause between them. How can I pause this routine, or take these operations out of DriverEntry, so they execute while starting driver? ... 27 May 2008 23:47

USB Camera Filter Driver
I try to write a USB camera filter driver, and i can print debug stream comming from webcam info. but i can not access data buffer of this stream, following is my code: I handle RP_MJ_DEVICE_CONTROL to trap stream comming from webcam NTSTATUS DispatchAny(IN PDEVICE_OBJECT fido, IN PIRP Irp) PDEVICE_EXTENSIO... 5 Jun 2008 01:23

Which component would be the most appropriate component to develop
I have previously posted a question with respect to the WDK print processor example in terms of the installation and use of it as I'm unclear about some details of the MSDN documentation. I've basically managed to build the genprint example for Vista environment, but I am confused when I'm reading about the secti... 26 May 2008 18:33

Need help for VELAN IM Driver.Does Windows 2008 supports IEEE 802.1Q?
Hi All, I'm planning to write an IM driver (NDIS6)in windows 2008. Does windows supports IEEE802.1Q standard fully?. VELAN driver (sample MUX driver)says that Out-Of-Bound(OOB) structure takes care of VLAN related 801.Q_Info structure. Is this enough or do I need to implement the standard IEEE802.1Q? Also I h... 26 May 2008 17:46

x64 XP/2003 BSOD when zwMapViewOfSection() is called
ZwMapViewOfSection() gives BSOD in x64 machine. The code is derived from windows DDK sample code which maps a region of PHYSICAL memory to the virtual address space of a user mode process. This section of memory is above the PHYSICAL memory used by the Windows kernel (by setting the /MAXMEM in boot.ini). The Win... 12 Jun 2008 13:21

Getting Beacon Frame
Hello, I would like to get complete raw data in the 802.11 beacon frame. That is, from its MAC header, Frame Body, to Frame Check Sequence. There are some information inside the beacon frame meaningful to me. Please give me advice on this issue. Also, I might try this in Windows Mobile platform. Thanks for ... 27 May 2008 18:18

DNS IP
How I can change DHCP DNS IP address at run time, e.g. Device got IP address and DNS ip from DHCP server IP1 : 192.168.1.14 DNS1: 192.168.1.1 DNS2: 192.168.1.2 after that I am adding one more IP using AddIPAddress("192.168.1.50") and I am changing the DHCP DNS IP in registry for networkcard (NWCD) COMM//NWCD1//... 2 Jun 2008 01:28

virtual device driver
I am new to the driver world...can any one give idea that leads to solve my problem .........if the device is connected to USB port of PC and the driver is not loaded for it we will get the message as driver has to be installed for that particular devce...in our reqiurement it should n't be like that and com... 28 May 2008 01:21

ZwWriteFile and memory buffer in Vista x64
Hi, 32-bit user-mode app calls x64 driver and passes buffer from user-mode into driver through DeviceIoControl(). Driver function calls ZwWriteFile() with address of buffer retrieved like: buff = pStackLoc->Parameters.DeviceIoControl.Type3InputBuffer; len = pStackLoc->Parameters.DeviceIoControl.InputBufferLength;... 29 May 2008 12:18