During this year’s Embedded Linux Conference in San Jose I will be presenting An Introduction to the Video4Linux Framework. As a long-term kernel contributor (since 2003), author of over 2000 kernel patches and co-maintainer of the video4linux kernel subsystem I have been working on improving that subsystem so it can handle the highly complex video capture and codec pipelines that are available on a modern SoC.
As part of that work a lot of attention was given (and still is!) to the supporting framework provided by the video4linux subsystem to simplify the driver code. Video is complex and driver developers should be able to concentrate on configuring the hardware without the V4L API getting in the way.
This presentation will demonstrate how to make a fairly simple video capture driver using the latest framework features. Using that framework greatly reduces the amount of work required to write a driver compared to what would have been needed just a few years ago.
You are all welcome to attend this presentation! And for those who are interested: on Friday there will be a video4linux mini-summit, see the announcement here.
Finally, if you have any questions about the video4linux kernel subsystem, please don’t hesitate to contact me at any time. I am always happy to answer them as best as I can.
Tags: Embedded Linux Conference, Linux Kernel, video4linux, video4linux framework
A consequence of the Moore Nielsen prediction is the phenomenon known as Data Gravity: big data is hard to move around, much easier for the smaller applications to come to it. Consider this: it took mankind over 2000 years to produce 2 Exabytes (2×1018 bytes) of data until 2012; now we produce this much in a day! The rate will go up from here. With data production far exceeding the capacity of the Network, particularly at the Edge, there is only one way to cope, which I call the three mega trends in networking and (big) data in Cloud computing scaled to IoT, or as some say, Fog computing:
- Dramatic growth in the applications specialized and optimized for analytics at the Edge: Big Data is hard to move around (data gravity), cannot move data fast enough to the analytics, therefore we need to move the analytics to the data. This will cause a dramatic growth in applications, specialized and optimized for analytics at the edge. Yes, our devices have gotten smarter, yes P2P traffic has become largest portion of Internet traffic, and yes M2M has arrived as the Internet of Things, there is no way to make progress but making the devices smarter, safer and, of course, better connected.
- Dramatic growth in the computational complexity to ETL (extract-transform-load) essential data from the Edge to be data-warehoused at the Core: Currently most open standards and open source efforts are buying us some time to squeeze as much information in as little time as possible via limited connection paths to billions of devices and soon enough we will realize there is a much more pragmatic approach to all of this. A jet engine produces more than 20 Terabytes of data for an hour of flight. Imagine what computational complexity we already have that boils that down to routing and maintenance decisions in such complex machines. Imagine the consequences of ignoring such capability, which can already be made available at rather trivial costs.
- The drive to instrument the data to be “open” rather than “closed”, with all the information we create, and all of its associated ownership and security concerns addressed: Open Data challenges have already surfaced, there comes a time when we begin to realize that an Open Data interface and guarantees about its availability and privacy need to be made and enforced. This is what drives the essential tie today between Public, Private and Hybrid cloud adoption (nearly one third each) and with the ever-growing amount of data at the Edge, the issue of who “owns” it and how is access “controlled” to it, become ever more relevant and important. At the end of the day, the producer/owner of the data must be in charge of its destiny, not some gatekeeper or web farm. This should not be any different that the very same rules that govern open source or open standards.
Last week I addressed these topics at the IEEE Cloud event at Boston University with wonderful colleagues from BU, Cambridge, Carnegie Mellon, MIT, Stanford and other researchers, plus of course, industry colleagues and all the popular, commercial web farms today. I was pleasantly surprised to see not just that the first two are top-of-mind already, but that the third one has emerged and is actually recognized. We have just started to sense the importance of this third wave, with huge implications in Cloud compute. My thanks to Azer Bestavros and Orran Krieger (Boston University), Mahadev Satyanarayanan (Carnegie Mellon University) and Michael Stonebraker (MIT) for the outstanding drive and leadership in addressing these challenges. I found Project Olive intriguing. We are happy to co-sponsor the BU Public Cloud Project, and most importantly, as we just wrapped up EclipseCon 2014 this week, very happy to see we are already walking the talk with Project Krikkit in Eclipse M2M. I made a personal prediction last week: just as most Cloud turned out to be Open Source, IoT software will all be Open Source. Eventually. The hard part is the Data, or should I say, Data Gravity…
Tags: Big Data, core, Data Gravity, Eclipse, edge, Enescu, ETL, Fog computing, IEEE, internet of things, IoT, krikkit, M2M, Moore, Nielsen, Open data, open source, virtualization
First off, we’d like to thank everyone for their continued use of our projects and products here at Sourcefire, now a part of Cisco. We love making great software, and we love for you to use it and contribute back. It’s been a great transition so far into the Cisco community, and recently, we held an Open Source Community Meeting at RSA, and we’d like to provide the content out to our Open Source user base as well.
The best way for us to do this is through a Webinar where we can present the current state of our projects, the future of the projects, how the projects are continuing to move forward inside of Cisco and of course, make ourselves available for Questions and Answers.
We are planning to hold the Webinar
Thursday, March 13, 2014
12:00 PM EST
for the webinar. We look forward to seeing you and hearing from you then!
March is a rather event-laden month for Open Source and Open Standards in networking: the 89th IETF, EclipseCon 2014, RSA 2014, the Open Networking Summit, the IEEE International Conference on Cloud (where I’ll be talking about the role of Open Source as we morph the Cloud down to Fog computing) and my favorite, the one and only Open Source Think Tank where this year we dive into the not-so-small world (there is plenty of room at the bottom!) of machine-to-machine (m2m) and Open Source, that some call the Internet of Everything.
There is a lot more to March Madness, of course, in the case of Open Source, a good time to celebrate the 1st anniversary of “Meet Me on the Equinox“, the fleeting moment where daylight conquered the night the day that project Daylight became Open Daylight. As I reflect on how quickly it started and grew from the hearts and minds of folks more interested in writing code than talking about standards, I think about how much the Network, previously dominated, as it should, by Open Standards, is now beginning to run with Open Source, as it should. We captured that dialog with our partners and friends at the Linux Foundation in this webcast I hope you’ll enjoy. I hope you’ll join us in this month in one of these neat places.
As Open Source has become dominant in just about everything, Virtualization, Cloud, Mobility, Security, Social Networking, Big Data, the Internet of Things, the Internet of Everything, you name it, we get asked how do we get the balance right? How does one work with the rigidity of Open Standards and the fluidity of Open Source, particularly in the Network? There is only one answer, think of it as the Yang of Open Standards, the Yin of Open Source, they need each other, they can not function without the other, particularly in the Network. Open Source is just the other side, the wild side!
Tags: Big Data, cloud, Eclipse, Fog, IEEE, ietf, internet of things, IoE, IoT, Linux, Linux Foundation, M2M, network, Open Daylight, open source, open standards, social networking, virtualization, Yin Yang
After a lot of hard work by our teams, and with RSA just a few days away, we are proud to announce that along with Cisco and Sourcefire’s corporate teams being present at RSA, and for the first time at RSA we will also be holding an Open Source Community Meeting for Sourcefire’s Open Source properties.
Matt Watchinski (Director of the Vulnerability Research Team) and myself, Joel Esler, (Open Source Manager) will be presenting on the state of our Open Source projects at Sourcefire, the state of Open Source now that we are Cisco, some future developments and of course, open Q&A!
So here’s some attendance details:
Open Source Community Meeting
Executive Conference Center
55 4th Street — Level 2
San Francisco, CA 94103
Wednesday, February 26th, 2014
12:00pm – 2:00pm
Lunch will be provided on site.
We also have some exclusive Swag give-aways that aren’t available anywhere else! Available for the first 40 people that come through the door (if we have your size).
We’ll have availability for about 50 people on site, so first come, first served, let’s make this a repeating event!
We look forward to seeing you there!