driver writing != bus driving

Ilias Tsigkogiannis' Introduction to Windows Device Drivers and Windows Audio Concepts

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  • Blog Post: KMDF Debugging Videos

    A while ago, I wrote a blog post about our UMDF debugging videos , which were created by my teammate Abhishek. Now, I'm really excited to announce that we've released KMDF debugging videos, which can be found at http://www.microsoft.com/whdc/devtools/debugging/kmdf.mspx . These videos were created...
  • Blog Post: WDF Logo Requirements Regarding Coinstallers

    I've been asked many times, if a driver developer can avoid using WDF coinstallers. The answer is "yes, if the system already has the needed version of WDF installed (e.g. you want to install a WDF 1.5 driver in Vista RTM)". So, the next question that usually comes up is "Will I be able to have my WDF...
  • Blog Post: UMDF Debugging Videos

    UPDATE: You can find my post about KMDF debugging videos at http://blogs.msdn.com/iliast/archive/2009/09/22/kmdf-debugging-videos.aspx A while back I had written that we didn't have any videos, where we talk about UMDF (KMDF seems to get all the glory :P). Well, now we do! My teammate, Abhishek...
  • Blog Post: Viewing WDF Logs In Windbg

    One feature that is really helpful in debugging WDF drivers is the log file that is created by the frameworks themselves. In the log files you can see many warnings and errors that are created by the framework (i.e. they come for free and the driver does not have to do anything). Did you ever have a...
  • Blog Post: Analyzing the Installation of WDF 1.7 and 1.9 drivers

    Many months ago I had written a post analyzing the installation of WDF 1.5 drivers . Now that WDF 1.9 is almost out of the door, it's time to do the same thing for WDF 1.7 and 1.9. The differences in the coinstallers for these 2 versions are small, so the installation experience is almost the same. I...
  • Blog Post: How to install WDF drivers (Quick-Start)

    This post is a small quick-start on how to install WDF drivers. Part 1: Installing a UMDF driver You can start with the echo sample, which is located at %WinDDK%\6001.18002\src\umdf\echo. First, you need to do a bcz in that directory. In your output directory you should see the following files: 1...
  • Blog Post: The WDF team needs your help in ensuring compatibility

    You might know that the Windows Driver Framework team is working on the next version of WDF, version 1.9, and planning to release it with Windows 7. Windows 7 will have this new version of framework built in. However, we will also provide a redistributable coinstaller so that you can install...
  • Blog Post: WinHEC 2008 Presentations

    As many of you know, WinHEC 2008 took place in Los Angeles, at the beginning of this month. I gave a presentation in the conference with Bob Kjelgaard about the WDF coinstallers and WDF logo requirements. This presentation includes a step-by-step walkthrough of the execution of the coinstallers, their...
  • Blog Post: When Is WDF 1.7 RTM Coming Out?

    UPDATE 10/02/2008 : The WDF 1.7 RTM coinstallers were released on 4/18/2008. For more information on how to download them, please look at http://blogs.msdn.com/iliast/archive/2008/10/02/where-are-the-wdf-1-7-rtm-coinstallers.aspx Lately, I've been hearing the same question over and over: Where is the...
  • Blog Post: Why Do We Need WDF Coinstallers?

    Lately, I've been hearing lots of questions like "why do we need this bloated KMDF/UMDF coinstaller?" or "why don't you use an msi" or "why doesn't a WDM driver always need a coinstaller?", etc both in some mailing lists and in emails. So, I'd like to throw some light into this issue. First of all, I...
  • Blog Post: Debugging User-Mode Processes Using a Kernel-Mode Debugger

    In this post I'll try to clarify some small details, that are related to debugging a user-mode process (focusing on a UMDF driver) using a kernel-mode debugger. So, the setup is that we have a test computer, where the UMDF echo driver is running and another computer, where windbg is running and we're...
  • Blog Post: Analyzing the Installation of UMDF and KMDF 1.5 drivers

    The goal of this post is to provide an insight about the installation of UMDF and KMDF 1.5 drivers and to show how to overcome any potential problems. For demo purposes I'll be using the UMDF and KMDF echo driver, which can be found at the WDK (%WinDDK%\6000\src\umdf\echo for UMDF and C:\WinDDK\6000...
  • Blog Post: UMDF Architecture talks

    During the last month I spent a lot of time going into more depth into UMDF. I wanted to make a more in-depth post about UMDF, but I just saw the UMDF talks (audio+slides) from WinHEC 2006 have been posted at the UMDF website . Since some of the topics that I wanted to analyze are covered by the presentations...
  • Blog Post: Introduction to the User-Mode Driver Framework (UMDF)

    The first WDF framework that I'll talk about is the UMDF (User-Mode Driver Framework). This framework allows the development of user-mode drivers. Currently, the supported devices are USB non-isochronous devices, like digital cameras, portable media players, cell phones, PDAs, etc. Isochronous devices...
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