Device Drivers
in [Programming]
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WDDM Driver Vidpn implementation. Hi, I am trying to develop a WDDM based display driver or windows 7.I am unable to know what need to be done in two of the calls namely DxgkDdiEnumVidPnCofuncModality DxgkDdiIsSupportedVidPn I tried to add an initial vidpn topology by implementing the DxgkDdiRecommendFunctionalVidPn call in the WDDM mi... 23 Jan 2010 23:16
A KeQuerySystemTime alternate function under x64 ? Hi, i have a problem that there is no KeQuerySystemTime for x64. I need the system time also under x64. (not IA64). Can some tell me a way or a an alternate function under x64 to get the system time. cheers, GeminiServer ... 9 Dec 2009 08:49
WinUSB - iterating devices to get serial numbers. Scene: Multiple devices with the same GUID attached to a machine. They report serial numbers and that is a known-working configuration. As I understand it, the proper way to iterate serial numbers is basically: 1. SetupDiGetClassDevs with the GUID then iterate: 1.a. getDevicePath(n++) 1.b. hDev = CreateFile(... 25 Dec 2009 18:00
Contiguous Memory allocation Hi, I want to allocate a certain memory area in RAM using the MmAllocateContiguousMemorySpecifyCache function. I've put my boundaries for my lowest and highest acceptable values and I want to get all the the availeble space between those values. For Example: MmAllocateContiguousMemorySpecifyCache( 0x4000... 8 Dec 2009 08:37
Validating values of POEMDEV Hi all, I've written a OEMUI.DLL. The basic code comes from the WINDDK sample. The values from the gui are stored in the POEMDEV. VERBOSE(DLLTEXT("UserName :<%s>.\r\n"), ((POEMDEV)pOEMDM)->szUserName); VERBOSE(DLLTEXT("CostCenter:<%s>.\r\n"), ((POEMDEV)pOEMDM)->szCostCenter); VERBOSE(DLLTEXT("ColorMode :<%s>.... 7 Dec 2009 05:15
Printer Driver using WINDDK OEMUI.DLL Hi all, I've written a OEMUI.DLL. The basic code comes from the WINDDK sample. The values from the gui are stored in the POEMDEV. I like to find a place in this DLL, where I can verify the values of POEMDEV. Greetings Kai ... 7 Dec 2009 06:19
Using windbg Hi, I am trying to debug the crash dump using Windbg. A few doubts regarding using Windbg. 1) Can I debug the crash using single PC or one extra PC is required for debugging. Any tutorials on how to use windbg are welcome. Regards in anticipation of your replies, Zaheer. Submitted via EggHeadCaf... 8 Dec 2009 08:37
Keyboard HID minidriver I have studied kbdclass class driver for keyboards and vhidmini hid minidriver. I understood how both drivers do stuff internally and how control IRP packets get passed down the driver stack from the class driver to the minidriver, but I have not understood how read requests are processed. I didn't understand... 6 Dec 2009 13:57
How to dynamically load and unload a PnP WDM Driver Hello, I know legacy style drivers can be loaded at any time with the Service Control Manager APIs, but PnP style drivers can't. My application uses a temporary driver that I want to load only when my application is running, and unload it when my application finishes it's task. How can I load a driver at ru... 12 Dec 2009 15:40
virtual bus enumeration I' compiled toater bus example from DDK, but after installing vbus, in registry enums, it sit in root\unknown, what I need to place it in root\system ? in inf : Class=System ClassGuid={4D36E97D-E325-11CE-BFC1-08002BE10318} ... 6 Dec 2009 02:02 |