Device Drivers

KMDF & USB isochronous
Hello, I'm currently evaluating KMDF for an USB Driver. Our device is based on Cypress FX2 chip. We stream video trough EP2 configured as IN Isochronous (High Bandwith device - 2*724 bytes per µframe). When looking in the documentation (Version 1.1 of the framework), I see that WdfUsbTargetPipeFormatRequest... 22 Sep 2006 23:47

WinCE modifications Serial_class to USBser class
Anybody can help to modify my existing serial class to USBser class for USBser.sys support for XP Host, Please help me, who are using Windows Mobile 5.0 or Windows CE 6.0 beta this two platform have full support of USBser.sys. for USB modem class on Win CE device. for refrance please check it out http://groups.go... 13 Sep 2006 22:11

Need help on MSVAD's CopyFrom function
Hi experts out there, I am totally new to virtual audio driver. I need to develop a virtual audio driver that can capture data that receiving from the mic of physical audio device. I was told by someone that I can do it what I want by modifying the function called "CMiniportWaveCyclicStreamMSVAD::CopyFrom( IN... 6 Sep 2006 05:35

Problem With NdisRegisterDeviceEx/IOCTL On Vista
I'm porting an NDIS miniport driver for a WLAN device from XP to Vista. This driver supported an IOCTL interface for query/set requests from the client application. Following the mux sample driver in the WDK, the driver now calls NdisRegisterDeviceEx() to register the device. Stepping through this in WinDbg,... 28 Sep 2006 08:41

IOCTL_USB_USER_REQUEST
I am using a Belkin 4-Port USB 2.0 Tetra Hub in my Windows XP system. I would like to power on/off inidividual ports on this hub. I could see one option could be using "IOCTL_USB_USER_REQUEST" with "USBUSER_OP_SEND_RAW_COMMAND" request. Can anyone provide me any help on how to use IOCTL_USB_USER_REQUEST? Thank... 2 Sep 2006 06:13

IOCTL_USB_USER_REQUEST
I am using a Belkin 4-Port USB 2.0 Tetra Hub in my Windows XP system. I would like to power on/off inidividual ports on this hub. I could see one option could be using "IOCTL_USB_USER_REQUEST" with "USBUSER_OP_SEND_RAW_COMMAND" request. Can anyone provide me any help on how to use IOCTL_USB_USER_REQUEST? Thank... 2 Sep 2006 04:40

Trouble Installing Driver Using DIFxApp
I'm having a problem with the installation of my device (a scanner) using the DIFxApp 2.01 merge module. I've built a simple installer using Visual Studio 2005 and added the DIFxApp merge module to it. Of course I've updated the msiDriverPackages table using Orca and all that. The driver has WHQL signatures for... 5 Oct 2006 14:53

wdf 5483 question
I met a annoying question this morning when I try to build the KMDF static bus example. Sometime it complained about: "ERROR - "g:\winddk\5483\src\kmdf\toaster\bus\static\objchk_wnet_x86\i386\_objects.mac" file time is in the future." No matter which command I used to build it-bz, bcz ,build -cz, build -cez... 25 Aug 2006 04:31

genprint Print Processor
HI all, I am new to print processor, from genprint source from DDK, i am trying to get EMF data from PrintDocumentOnPrintProcessor() using pData and pDocumentname parameter,? In PrintEmf(), i get handle to spool file. and i m using that. ? Please point me to correct direction. What i want to do is to get E... 24 Aug 2006 21:09

Installing unsigned drivers with DIFxAPP
Is there a way to install unsigned drivers with DIFxAPP? I use WISE for Windows Installer and the DIFxAPP.msm merge module. I did set the Flag for "Legacy Mode" in the MsiDriverPackages Custom Table Schema as described in: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/DevInst_d/hh/DevInst_d/dif... 22 Aug 2006 09:48