As usual, Bootlin will again be present at the FOSDEM conference in Brussels, on February, 4th and February 5th. We will of course mostly be attending the Embedded DevRoom, with multiple talks around development in the embedded space.
We will also be giving two talks this year:
My colleague Maxime Ripard will be giving a talk about IIO, a new subsystem for I/O devices. In short, IIO is a new subsystem in the kernel to write drivers for devices like Analog-to-Digital converters. Maxime has worked on a driver inside the IIO subsystem for the internal ADCs of the AT91 processors from Atmel, and will base his talk mostly on the experience developing this driver. This talk will take place on Saturday, 12:00 AM to 1:00 PM in the Lameere room.
I will be giving a talk on Using Qt for non-graphical applications. It is a talk that has already been given at the Embedded Linux Conference Europe, but the audience of FOSDEM and ELCE being quite different, we have chosen to propose it for FOSDEM as well, and it got accepted. This talk will take place on Sunday, 1:00 PM to 2:00 PM in the Lameere room.
There are also other talks that are worth noting: a SoC power management talk from Jean Pihet who works on OMAP power management support in the Linux kernel, a talk about OpenCores and OpenRISC, a talk about Safe Upgrade of Embedded Systems by Arnout Vandecappelle, who contributes a lot to Buildroot, and also other talks about OpenWRT, Yocto, licensing issues in Android, the EFL libraries, and more.
We will also be carrying our camcorder to video record those talks. We are trying to see with the FOSDEM organization team if it possible to record the audio directly from the room sound systems in order to provide better audio quality in our videos.
If you happen to be at FOSDEM, we’d be very happy to meet you!
Around each FOSDEM conference and Embedded Linux Conference Europe event, we have been organizing a Buildroot Developer Day for a few years, in order to gather some developers and users of the Buildroot build system, in order to discuss the development of Buildroot, its features, development process, design, and more.
In Prague at the last Embedded Linux Conference Europe in October 2011, we had a very interesting meeting that gathered developers from other build systems (OE-lite, OpenBricks and PXTdist), and we published a report of this meeting.
The next Buildroot Developer Day will take place on Friday, 3rd February, just before the FOSDEM conference, in Brussels. This is the first meeting that will gather such a number of Buildroot developers: Peter Korsgaard (Buildroot maintainer), Arnout Vandecapelle (developer from Essensium/Mind, who has been contributing a lot to Buildroot lately), Thomas De Schampheleire (also a big contributor in the last year or so), Luca Ceresoli, Yann E. Morin (developer of Crosstool-NG), my colleague Maxime Ripard (who contributed package enhancements and improvements of the package infrastructure) and myself.
This meeting is open to all Buildroot developers and users, and will take place in a location easily accessible in the center of Brussels. Do not hesitate to contact me at thomas.petazzoni@bootlin.com if you want to take part to this meeting.
One week after the end of the Embedded Linux Conference Europe 2011, we are pleased to release the videos of all talks that took place during this event. We would like to thank the Linux Foundation for allowing us to record those talks and to share freely the resulting videos on-line, and also thank the Clarion Congress Hotel technical staff for helping us with technical details related to video recording.
Below, you’ll find 51 videos, in both a 1920×1080 HD format and a reduced 800×450 format. In total, it represents 28 GB of video, for a duration of 2214 minutes, that is more of 36 hours of video. We hope that you will enjoy those videos and that these will be useful to those who couldn’t attend the conference.
Linus Torvalds, Alan Cox, Thomas Gleixner, Paul McKenney moderated by Lennart Poettering Kernel Developer Panel Video (55 minutes): full HD (622M), 450×800 (191M)
Zach Pfeffer Linaro Linaro’s Android Platform Video (45 minutes): full HD (604M), 450×800 (164M)
Thomas Gleixner Linutronix State of PREEMPT_RT Video (46 minutes): full HD (374M), 450×800 (147M)
Jessica Zhang Intel The Yocto Project Eclipse plug-in: An effective IDE environment for both Embedded Application and System developers Video (45 minutes): full HD (431M), 450×800 (118M)
Satoru Ueda Sony Corporation / Japan OSS Promotion Forum Contributing to the Community? Does your Manager Support You? Video (42 minutes): full HD (556M), 450×800 (140M)
Benjamin Zores Alcatel-Lucent Embedded Linux Optimization Techniques: How Not To Be Slow Slides Video (44 minutes): full HD (328M), 450×800 (125M)
Ohad Ben-Cohen Texas Instruments Remote Processor Messaging Slides Video (48 minutes): full HD (433M), 450×800 (131M)
Jeff Osier-Mixon Intel Collaborative Initiatives in Embedded Linux Video (26 minutes): full HD (266M), 450×800 (73M)
Karim Yaghmour Opersys Inc. Leveraging Android’s Linux Heritage Video (51 minutes): full HD (419M), 450×800 (168M)
Pierre Tardy Intel Using pytimechart For Real World Analysis Slides Video (51 minutes): full HD (495M), 450×800 (132M)
Arnd Bergmann Linaro Optimizations for Cheap Flash Media Video (44 minutes): full HD (524M), 450×800 (146M)
Vitaly Wool Sony Ericsson Saving Power with Wi-Fi: How to Prolong Your Battery Life and Still Stay Connected Slides Video (50 minutes): full HD (371M), 450×800 (143M)
David Stewart Intel Developing Embedded Linux Devices Using the Yocto Project and What’s new in 1.1 Slides Video (47 minutes): full HD (370M), 450×800 (124M)
Tetsuyuki Kobayashi Kyoto Micro Computer Android is NOT Just “Java on Linux” Slides Video (37 minutes): full HD (542M), 450×800 (129M)
Thomas Petazzoni Bootlin Using Buildroot For a Real Project Slides Video (55 minutes): full HD (408M), 450×800 (156M)
Tim Bird Sony Network Entertainment Status of Embedded Linux BoFs Slides Video (60 minutes): full HD (877M), 450×800 (213M)
Lauro Ramos Venancio and Samuel Ortiz Instituto Nokia de Tecnologia, Intel The Linux NFC Subsystem Slides Video (31 minutes): full HD (229M), 450×800 (87M)
David Anders Texas Instruments Board Bringup: LCD and Display Interfaces Slides Video (39 minutes): full HD (242M), 450×800 (98M)
Antti Aumo President of Global Solutions at Ixonos Re-Defining the Cloud Phone Video (32 minutes): full HD (360M), 450×800 (108M)
Dirk Hohndel Chief Linux and Open Source Technologist at Intel Reflection on 20 Years of Linux Video (30 minutes): full HD (235M), 450×800 (92M)
Grant Likely Secret Lab Device Tree Status Report Video (51 minutes): full HD (775M), 450×800 (178M)
Laurent Pinchart Ideas on Board Success Story of the Open-Source Camera Stack: The Nokia N9 Case Slides Video (48 minutes): full HD (308M), 450×800 (120M)
Avinash Mahadeva and Vishwanth Sripathy Texas Instuments SOC Power Management – Debugging and Optimization Techniques Video (41 minutes): full HD (288M), 450×800 (108M)
Rafael J. Wysocki Faculty of Physics, U. Warsaw / SUSE Labs Power Management Using PM Domains on SH7372 Slides Video (46 minutes): full HD (692M), 450×800 (157M)
Sascha Hauer Pengutronix e.K. A Generic Clock Framework in the Kernel: Why We Need It and Why We Still Don’t Have It Video (45 minutes): full HD (345M), 450×800 (134M)
Ruud Derwig Synopsys Android Platform Optimizations Slides Video (43 minutes): full HD (266M), 450×800 (105M)
Inki Dae Samsung Electronics DRM Driver Development For Embedded Systems Slides Video (22 minutes): full HD (367M), 450×800 (91M)
Lorenzo Pieralisi ARM Ltd. Consolidating Linux Power Management on ARM Multiprocessor Systems Slides Video (46 minutes): full HD (283M), 450×800 (113M)
Thomas Petazzoni Bootlin Using Qt For Non-Graphical Applications Slides Video (49 minutes): full HD (340M), 450×800 (124M)
Marek Szyprowski and Kyungmin Park Samsung Electronics ARM DMA-Mapping Framework Redesign and IOMMU Integration Slides Video (49 minutes): full HD (790M), 450×800 (195M)
Keerthyd Jagadeesh and Vishwanath Sripathy Texas Instruments Thermal Framework for ARM based SOCs Video (42 minutes): full HD (316M), 450×800 (113M)
Marc Titinger ST Microelectronics Efficient JTAG-Based Linux Kernel Debugging Slides Video (57 minutes): full HD (382M), 450×800 (141M)
Tsugikazu Shibata NEC and Linux Foundation Board Member Toward the Long Term Stable Kernel tree for The Embedded Industry Video (32 minutes): full HD (606M), 450×800 (145M)
Lisko Lappalainen MontaVista Software Secure Virtualization in Automotive Video (40 minutes): full HD (301M), 450×800 (116M)
Jeff Osier-Mixon Intel Yocto Project Community BoFs Video (60 minutes): full HD (451M), 450×800 (167M)
Jon Corbet Editor at LWN.net The Kernel Report: 20th Anniversary Edition Video (28 minutes): full HD (218M), 450×800 (88M)
Wim Coekaerts Senior Vice President, Linux and Virtualization Engineering at Oracle Engineered Systems With Linux Video (21 minutes): full HD (175M), 450×800 (68M)
Andrea Gallo ST-Ericsson ARM Linux Kernel Alignment and Benefits For Snowball Slides Video (47 minutes): full HD (394M), 450×800 (133M)
Liam Girdwood and Peter Ujfalusi Texas Instruments Smart Audio: Next-Generation ASoC For Smart Phones Video (50 minutes): full HD (367M), 450×800 (124M)
Pawel Moll ARM Ltd. Linux on Non-Existing SoCs Video (52 minutes): full HD (483M), 450×800 (143M)
Koen Kooi The Angstrom Distribution Integrating systemd: Booting Userspace in Less Than 1 Second Slides Video (44 minutes): full HD (343M), 450×800 (125M)
Sylvain Leroy and Philippe Thierry Grsecurity in Embedded Linux Used in Android Operating System Slides Video (40 minutes): full HD (384M), 450×800 (110M)
MyungJoo Ham Samsung Electronics Charger Manager: Aggregating Chargers, Fuel-Gauges and Batteries Slides Video (33 minutes): full HD (434M), 450×800 (109M)
Arnd Bergmann Linaro News From the ARM Architecture Video (49 minutes): full HD (421M), 450×800 (150M)
Frank Rowand Sony Network Entertainment How Linux PREEMPT_RT Works Slides Video (45 minutes): full HD (378M), 450×800 (135M)
Catalin Marinas ARM Ltd. Linux Support for the ARM Large Physical Address Extensions Slides Video (52 minutes): full HD (594M), 450×800 (170M)
Jim Huang 0xlab Build Community Android Distribution and Ensure the Quality Video (44 minutes): full HD (472M), 450×800 (143M)
Till Jaeger JBB Rechtsanwälte The Case AVM v. Cybits: The GPL and Embedded Systems Video (42 minutes): full HD (362M), 450×800 (124M)
Darren Hart Intel Tuning Linux For Embedded Systems: When Less is More Slides Video (45 minutes): full HD (482M), 450×800 (135M)
Wolfram Sang Pengutronix e.K. Developer’s Diary: It’s About Time Video (49 minutes): full HD (482M), 450×800 (141M)
As we announced in a previous blog post, a large part of the Bootlin team attended the 2011 edition of the Embedded Linux Conference Europe in Prague last week.
This was the first european edition of the conference to last three days, and this was much appreciated as it gave the opportunity to attend a lot more conferences and to spend more time talking with developers of the community. My colleagues Michael Opdenacker and Maxime Ripard as well as myself really enjoyed this conference. It really allows to connect with members of the community, learn a lot of new things, and bring home a huge motivation to work on various projects. Despite a few marketing-oriented keynotes, the conference has kept its highly-technical profile, which is great.
We have recorded all the talks of the three tracks of the Embedded Linux Conference Europe (unfortunately, there wasn’t a similar video crew for the LinuxCon Europe conference which was taking place at the same time). Many of those videos should have a much higher audio quality than what we had in the past, since we could capture the audio directly for the conference room sound system. Unfortunately, one of our camcorders generates a loud noise when connected both to the audio system of the conference room and to the power adapter (this noise disappears when the camcorder is on battery). Therefore, not all conferences could be recorded with this improved audio quality. The encoding and upload of those videos has started on Sunday evening, just a few hours after landing in Toulouse when coming back from ELCE. The process is running 24/24 on two machines in parallel, and we therefore hope to be able to provide those videos online by the end of the week, or at worst at the beginning of next week.
Kernel Developer Panel. From left to right: Linus Torvalds, Paul McKenney, Alan Cox, Thomas Gleixner and the moderator, Lennart Poettring
As we also announced, I gave two talks at this Embedded Linux Conference Europe event. One on Buildroot, titled Using Buildroot for real projects, which slides are available on the elinux.org site. More than 50 persons attended the conference which seems to indicate that there is interest around Buildroot. I had a few questions but unfortunately had to stop the conference after just 2/3 questions since I had exhausted my time slot. My second conference was titled Qt for non-graphical applications, and the slides are also available on the elinux.org site. About 45-50 persons attended the conference and in this case as well, I had to speak quite fast to make the 40+ slides discussion fit within the time slot allocated for the conference, which gave only the time for a few questions at the end. Generally speaking, these talks have attracted a nice number of attendees compared to many other talks I’ve seen, so it seems that all the preparation work was not done needlessly.
Nicolas Deschene (TI) and Loïc Minier (Linaro)
If you couldn’t attend ELCE and are waiting for the videos, I’m sure you’ll also be interested by the date and locations of the next editions of the conference :
The next Embedded Linux Conference, US edition, will take place on February 14-16 2012 in Redwood City, near San Francisco in California. This is an unusual date for the ELC (which traditionally took place in April), but it allows the conference to match with the Linaro Connect event for the first quarter of 2012.
The next Embedded Linux Conference Europe will take place on November 6-9 2012 in Barcelona, Spain. This is a just a ~4h drive from Toulouse, so definitely, several Bootlin people should be there.
The next Embedded Linux Conference Europe will take place from October 26th to October 28th in Prague, together with the first edition of LinuxCon Europe and just after the Kernel Summit, the GStreamer conference and the Real-time Linux workshop: it’s a really impressive concentration of interesting talks for embedded Linux developers. Linus Torvalds is already announced as a keynote speaker of the LinuxCon Europe.
As ELCE is a conference that embedded Linux developers simply can’t miss, the complete team of Bootlin will be there: my colleague and Bootlin founder Michael Opdenacker (Michael is part of the organization committee for this event), my engineer colleagues Grégory Clément and Maxime Ripard and myself, Thomas Petazzoni.
I will also have the chance to give two talks during this edition of ELCE:
Using Buildroot for real products. As Bootlin has used and is using Buildroot for multiple customer projects, this talk will share our experience on how to configure and setup Buildroot properly to build embedded Linux systems and include in a clean and nice way all of the specificities of each product.
Using Qt for non-graphical applications. Qt is often seen only as a graphical library, but it is in fact much more than that. Based on the experience of a customer project, this presentation will detail all the nice features that Qt offers to build embedded applications.
We highly recommend this conference to European embedded Linux developers and hope to meet some of our readers there! We will be the guys behind the video cameras in the embedded rooms. It’s worth mentioning that ELCE attendees are also granted, for free, the right to access LinuxCon Europe talks.
As promised by the time-based release schedule, a new version 2011.08 of Buildroot has just been released. For those just coming in, Buildroot is a utility that automates the process of building an embedded Linux system: generating a cross-compilation toolchain or importing an existing one, cross-compiling multiple user-space libraries or applications, generating a root filesystem image and building the kernel or bootloader images. We use it extensively at Bootlin for various projects and therefore contribute regularly to this project.
The major highlights of this version are :
An updated version of udev. For a long time, Buildroot has been stuck with an ancient udev release, due to the slightly more complicated dependencies of newer udev versions. Fortunately, Yegor Yefremov and other contributors have done the work to integrate those dependencies and get a modern version of udev to work in Buildroot.
An updated version of util-linux has been integrated. Here as well, updating it wasn’t completely straightforward, due to utility libraries such as libuuid, which is also present and e2fsprogfs, and used by multiple other packages.
The conversion of the Linux kernel build process and the bootloaders build process to the GENTARGETS infrastructure of Buildroot. This makes the build process of the kernel and the bootloaders much more similar to regular packages, and allows to provide the capability of fetching kernel sources not only from tarballs over http/ftp, but also from Git or Subversion repositories.
The kernel build process has been extended to support Linux 3.x versions and also release candidates versions.
Some improvements for using Buildroot to generate systems for non-MMU targets
Some new packages have been added: acl, attr, ebtables, gnutls, inotify-tools, ipset, libargtable2, libiqrf, libmnl, libnspr, libnss, libroxml, libyaml, live555, mxml, orc, rsyslog, sredird, statserial, stunnel, ti-utils, uboot-tools, yajl, and many, many packages have been upgraded or fixed.
The amount of patches merged for this release (287) is almost identical to the number of patches for the past release (286), but the number of contributors has increased from 28 to 35. Generally speaking, we are seeing an increasing number of requests and contributions from users :
143 Peter Korsgaard
36 Thomas Petazzoni
21 Sven Neumann
13 Gustavo Zacarias
13 Yegor Yefremov
9 Maxime Ripard
7 Yann E. MORIN
4 Baruch Siach
4 Daniel Mack
4 Luca Ceresoli
3 Jean-Christophe PLAGNIOL-VILLARD
3 Thomas De Schampheleire
2 Allan W. Nielsen
2 Mike Williams
2 Phil Edworthy
2 Will Newton
1 Arnout Vandecappelle (Essensium - Mind)
1 Arnout Vandecappelle (Essensium/Mind)
1 Benoit Mauduit
1 Benoît Mauduit
1 Daniel Hobi
1 Daniel Nyström
1 Danomi Mocelopolis
1 Evgeni Dobrev
1 Francis Mendes
1 Frederic Bassaler
1 Frederik Pasch
1 H Hartley Sweeten
1 Heiko Helmle
1 Marek Belisko
1 Michael J. Hammel
1 Milton Soares Filho
1 Philippe Reynes
1 Robin Holt
1 Tristan Lelong
Two developers from Bootlin have contributed patches for this release: my colleague Maxime Ripard has contributed 9 patches (Python build fixes, toolchain configuration fix, new rsyslog package, rework of the logging init scripts, new stunnel package, /dev/shm fix for the initialization scripts, code cleanup) and I (Thomas Petazzoni) have contributed 36 patches (conversion of the kernel and bootloaders to the GENTARGETS infrastructure, support for Linux 3.x and release candidates, improvements for non-MMU targets, the new scons package, upgrade of valgrind, some other code cleanup and fixes).
For the next release, I expect to contribute a set of patches that has already been reviewed on the list, and which adds the possibility of building packages from an existing source directory instead of letting Buildroot handle the download/extract/patch part of the build process. This feature will make it much much easier to use Buildroot during the development of the kernel, an application or a library for the target embedded system. I have also posted patches that convert the documentation over to the asciidoc format and I intend to do various additions to this documentation.
It is also worth mentioning that the Buildroot developers (Peter Korsgaard and myself) and the Crosstool-NG maintainer Yann E. Morin are organizing a Developer Day on October, 29th in Prague, the day after the Embedded Linux Conference Europe. All developers or users interested in Buildroot and/or Crosstool-NG are invited to join. See http://lists.busybox.net/pipermail/buildroot/2011-August/045066.html for more details.
I was invited to speak at the GENIVI All Members Meeting that took place on May 3-6 in Dublin, Ireland. This was a very interesting opportunity to meet new people in the In Vehicle Infotainment (IVI) industry and community.
In addition to the friendly social event at the Guiness Brewery, there was also a very interesting technical showcase of products and software using the GENIVI stack. I could observe that Freescale and ARM chips in general dominate this market. I also wore my Linaro shirt and had interesting discussions with several people about partnership opportunities between GENIVI and Linaro.
More and more feature rich Linux devices are put in the hands of consumers, and the average consumer shouldn’t even notice that they run Linux. To make the OS invisible, the system should boot in a flash.
Multiple boot time reduction techniques are now available, and can be used at the end of a development project, without incurring redesign costs. This presentation will guide embedded Linux system developers through the most effective ones. For each technique, we will detail how to use it and will report the exact savings achieved on a real embedded board.
Author’s biography
Michael Opdenacker is the founder of Bootlin (https://bootlin.com), a company offering development, consulting and training services to embedded Linux system developers worldwide. He is always looking for innovative techniques to share with customers and with the community.
Michael is also the Community Manager for Linaro (http://linaro.org), a not-for-profit engineering organization working on software foundations for Linux on ARM, to reduce fragmentation between ARM chip vendors, increase product performance and reduce time to market. Linaro currently employs more than 100 of the most active developers in the ARM and embedded Linux community.
I was pleased to have a good number of participants, and to get many questions during and after the talk.
Though GENIVI is about Free and Open Source Software, it is unfortunately not very open to the community yet. You have to become a member to access its specifications, wiki and other technical resources. While collecting membership fees makes sense to operate such an organization, and is acceptable for system makers, it makes it difficult for embedded Linux community developers to get involved. I hope that GENIVI will become more open to the wider embedded Linux community in the future.
Just after the Embedded Linux Conference 2011, the first edition of the Android Builders Conference took place in San Francisco, on April 13th and April 14th 2011. This is the first, and to date, probably the first, conference entirely dedicated to Android low-level components and on how Android systems are built and modified. The number of resources, documentation and conferences on Android application development is already huge, but the amount of system-level information about Android is still relatively limited. This conference comes to fill in this gap, allowing engineers working on Android-based systems to share their experience. With a single track of talks for the first half-day, and two tracks for the second full day, it was a very nice first edition, and the co-location with the Embedded Linux Conference was well-appreciated. Interestingly enough, no talks were given by Google engineers, despite the fact that they are the primary designers and developers of the Android system.
Just as we did for the Embedded Linux Conference a few days ago, we are also publishing below the videos of all talks given during this Android Builders Summit. Of all the presentations, the ones we found the most interesting are certainly:
Karim Yaghmour’s talk about « Android Internals » and «Porting Android to new hardware»
Aleksander “Sasa” Gargenta’s talk «A walk through the Android stack». Unfortunately, the speaker had way too much contents for the one hour slot, but the content presented was very, very interesting.
Mark Brown’s talk «Linux audio for smartphones»
Mike Woster Linux Foundation Android Builders Summit Introduction Video (2 minutes): full HD (31M), 450×800 (11M)
Christy Wyatt Motorola Motorola: innovation rising Video (36 minutes): full HD (454M), 450×800 (142M)
Mark Charlebois Qualcomm Innovation Center From the alliance to the evolution: the history and future of Android innovation Video (26 minutes): full HD (332M), 450×800 (103M)
Greg Burns QuIC AllJoyn and the new era of peer-to-peer-technology Video (55 minutes): full HD (680M), 450×800 (209M)
Mark Brown Wolfson Micro Linux audio for smartphones Slides Video (46 minutes): full HD (560M), 450×800 (173M)
Karim Yaghmour Opersys Android Internals Slides Video (58 minutes): full HD (793M), 450×800 (245M)
Mark Gross Intel Device provisioning anad over the air updates for Android-2011 Slides Video (48 minutes): full HD (847M), 450×800 (214M)
Peter Vescuso Black Duck Software Managing Android and the complexity inside Video (35 minutes): full HD (375M), 450×800 (121M)
Hansung Chun ETRI I/O performance improvement, using ext2 in Android-2011 Slides Video (44 minutes): full HD (915M), 450×800 (210M)
Magnus Bäck Sony Ericsson Using the Debian package manager to assemble Android-based phone software systems Video (45 minutes): full HD (357M), 450×800 (134M)
Tim Bird Sony Network Entertainment Trying to improve Android boot time with readahead Slides Video (38 minutes): full HD (833M), 450×800 (194M)
Bruce Beare Intel Living with Gerrit Slides Video (42 minutes): full HD (404M), 450×800 (137M)
Karim Yaghmour Opersys Porting Android to new hardware Slides Video (43 minutes): full HD (822M), 450×800 (209M)
Marko Gargenta Marakana Beyond the phone Slides Video (44 minutes): full HD (682M), 450×800 (193M)
Neil Trevett NVIDIA Open API standards as a foundation for Android innovation Video (42 minutes): full HD (523M), 450×800 (173M)
Vitaly Wool, presented by Mark Gross Sony Ericsson WiFi and Android: powersave saga Video (31 minutes): full HD (544M), 450×800 (136M)
Aleksander “Sasa” Gargenta Marakana A walk through the Android stack Video (60 minutes): full HD (689M), 450×800 (234M)
Armijn Hemel gpl-violations.org Licensing pitfalls in Android and how to avoid them Video (44 minutes): full HD (662M), 450×800 (183M)
Tim Bird Sony Network Entertainment Android System Programming Tips and Tricks Slides Video (42 minutes): full HD (459M), 450×800 (153M)
The Embedded Linux Conference 2011 took place between April, 11th and April, 13th in its now usual place, the Kabuki hotel in San Francisco, California. It was the first edition organized since the merge of the CE Linux Forum into the Linux Foundation. During three days, three parallel tracks of talks and BoFs about technical topics around embedded Linux : kernel support, power management, build systems, file systems, real-time, and more.
As usual, part of the Bootlin team was at this Embedded Linux Conference, in order to keep up with the latest developments from the embedded Linux community. Gregory Clement (left on the picture), Maxime Ripard (right on the picture) and myself (center on the picture) were present, and we recorded all talks of the conference. And just a little bit more than one month later, we are ready to announce that all videos are now available online, in 1080p high-definition, and in a lower 450p resolution, encoded with the new VP8 codec.
Bootlin at ELC 2011. From left to right: Gregory Clement, Thomas Petazzoni and Maxime Ripard.
Amongst all the conferences below, each of us have selected the three ones we thought were the most interesting ones (note that the top three for each us is necessarily composed of distinct talks, as none of us have seen the same talks since we had to record talks from three different sessions in parallel) :
For Gregory Clement, the top three is: Yoshiya Hirase talk about Faster Resume For More Energy Savings on MeeGo, Arnd Bergmann talk about Optimizations For Cheap Flash Media (which follows Arnd article on the same topic in LWN) and a set of three related talks about the video infrastructure in the Linux kernel, that Gregory recommends to watch in this order: Media Controller Framework (MCF) For OMAP2+ Display Subsystem (Sumit Semwal), Video4linux: Progress, New videobuf2 Framework and the Future (Hans Verkuil) and Bringing up HDMI Display for OMAP4 Panda Board – Design, Challenges and Lessons Learned (Mythri pk).
For Maxime Ripard, the top three is: John Stultz talk about Android for servers, Mike Anderson talks about ARM NEON and GPU programming, Wolfram Sang talk about Helping the process
For myself, the top three is: Jesse Barker talks about the ARM Graphics ecosystem which gives a nice overview of the state of this topic, Hai Shalom talk about PCD (which is an original and interesting replacement for init), Dave Stewart talk about The Yocto Project and its Application Development Toolkit (because it gives details on how Yocto is supposed to be used for application development, a topic I’m interested in as a Buildroot developer)
It is also worth noting that this Embedded Linux Conference was co-located with the first edition of the Android Builders Summit, for which we will soon publish videos as well. The next embedded Linux conference will take place in Europe, in Prague from October 26th to 28th, co-located with the first edition of LinuxCon Europe and just after the Kernel Summit. Prague will really be full of Linux developers during this end of October, it’s time to book this week on your agenda as well !
Finally, the list of all videos of Embedded Linux Conference 2011, along with their corresponding slides :
Tim Bird Sony Network Entertainment Welcome Keynote Video (10 minutes): full HD (131M), 450×800 (43M)
Dirk Hohndel, Richard Purdie Intel, Linux Foundation The Yocto Project Video (35 minutes): full HD (458M), 450×800 (140M)
Keshava Munegowda Texas Instruments Power Fail Safe FAT File Systems Slides Video (48 minutes): full HD (693M), 450×800 (203M)
Frank Rowand Sony Identifying embedded real-time issues: I-cache and locks Slides Video (46 minutes): full HD (471M), 450×800 (147M)
Bruno Cardoso Lopes University of Campinas LLVM, Clang and Embedded Linux Systems Slides Video (50 minutes): full HD (593M), 450×800 (164M)
Steven Rostedt RedHat Kernel Shark Tutorial Video (49 minutes): full HD (743M), 450×800 (215M)
Kang Dongwook ETRI Snapshoot Booting on Embedded Linux Slides Video (33 minutes): full HD (284M), 450×800 (95M)
Khem Raj State of OpenEmbedded Internal Toolchain and SDKs Slides Video (41 minutes): full HD (289M), 450×800 (119M)
David Rusling Linaro Linaro: a year of change Slides Video (50 minutes): full HD (529M), 450×800 (173M)
Hai Shalom Atheros Control, recover and debug your embedded product with PCD Slides Video (50 minutes): full HD (470M), 450×800 (160M)
Gene Sally Zigbee Networking and Linux Video (53 minutes): full HD (262M), 450×800 (139M)
Xi Wang Broadcom Solving real-time scheduling problems with RT_PREEMPT and deadline-based scheduler Slides Video (43 minutes): full HD (422M), 450×800 (141M)
Mike Anderson The PTR Group ARM Neon instruction set and why you should care Slides Video (53 minutes): full HD (527M), 450×800 (169M)
Darren Hart Intel Yocto Project: Practical Kernel Development Tutorial Video (52 minutes): full HD (551M), 450×800 (196M)
Arnd Bergmann IBM Optimizations for cheap flash media Slides Video (49 minutes): full HD (482M), 450×800 (160M)
Wolfram Sang Pengutronix Developer’s diary: helping the process Slides Video (39 minutes): full HD (315M), 450×800 (112M)
Rajesh Lal Nokia Fun with QML and Javascript Slides Video (39 minutes): full HD (250M), 450×800 (108M)
Thomas Gleixner Linutronix RT-Preempt: what’s the state and why there is no roadmap Slides Video (46 minutes): full HD (447M), 450×800 (149M)
Jason Kridner Texas Instruments High-level web interface to low-level I/O on the BeagleBoard Slides Video (36 minutes): full HD (370M), 450×800 (115M)
Arnd Bergmann IBM Becoming part of the Linux kernel community Slides Video (34 minutes): full HD (376M), 450×800 (126M)
Paul Mundt Renesas Working with hardIRQs: life beyond static IRQ assignments Slides Video (36 minutes): full HD (330M), 450×800 (113M)
Amit Kucheria Linaro Powerdebugging inside Linaro Slides Video (46 minutes): full HD (309M), 450×800 (136M)
Mike Anderson The PTR Group High-performance computing using GPUs Slides Video (57 minutes): full HD (615M), 450×800 (185M)
Paul Larson Canonical Linaro automated validation on ARM Video (51 minutes): full HD (581M), 450×800 (184M)
Dave Stewart Intel The Yocto project and its application development toolkit (ADT) – The answer to effective embedded application development Video (42 minutes): full HD (362M), 450×800 (139M)
Damian Hobson Garcia, Katusya Matsubara, Takanari Hayama, Hisao Munakata Igel Integrating a Hardware Video Codec into Android Stagefright using OpenMAX IL Slides Video (55 minutes): full HD (564M), 450×800 (177M)
Koen Kooi Texas Instruments Integrating OpenEmbedded and Yocto Slides Video (52 minutes): full HD (465M), 450×800 (159M)
Mark Gross Intel How to power tune a device running on a Linux kernel for better suspend battery life Slides Video (49 minutes): full HD (273M), 450×800 (129M)
Remi Lorriaux Adeneo Embedded Real-time audio on embedded devices Slides Video (44 minutes): full HD (437M), 450×800 (138M)
Magnus Damm Runtime PM: upstream I/O device power management Slides Video (53 minutes): full HD (486M), 450×800 (164M)
Jesse Barker Linaro Linux graphics meets the ARM ecosystem Slides Video (50 minutes): full HD (329M), 450×800 (147M)
David Anders Texas Instruments Board bringup: open-source hardware and software tools Slides Video (38 minutes): full HD (376M), 450×800 (118M)
John Williams PetaLogix Dynamic co-simulation of FPGA-based systems on chip Slides Video (57 minutes): full HD (567M), 450×800 (198M)
Summit Semwal Texas Instruments Media Controller Framework (MCF) for OMAP2+ display subsystem Slides Video (49 minutes): full HD (518M), 450×800 (155M)
John Stultz IBM Android for servers? Slides Video (37 minutes): full HD (425M), 450×800 (137M)
Anand Gadiyar Texas Instruments Tools and techniques for debugging embedded systems Slides Video (30 minutes): full HD (139M), 450×800 (81M)
Hans Verkuil Cisco Video4linux: progress, new videobuf2 framework and the future Slides Video (56 minutes): full HD (534M), 450×800 (171M)
Yoshiya Hirase Nokia Faster resume for more energy saving on MeeGo Slides Video (58 minutes): full HD (727M), 450×800 (218M)
Jake Edge Linux Weekly News What embedded Linux developers should know about IPv6 Slides Video (46 minutes): full HD (266M), 450×800 (122M)
Grégoire Gentil Always Innovating Hot multi-OS switch: how to run Ubuntu, ChromiumOS, Android at the same time on an embedded device Video (61 minutes): full HD (515M), 450×800 (174M)
Xi Wang Broadcom Controlling memory footpring at all layers: Linux kernel, applications, libraries and toolchain Slides Video (38 minutes): full HD (511M), 450×800 (152M)
Tom Zanussi, Saul Wold Building custom embedded images with Yocto Slides Video (49 minutes): full HD (500M), 450×800 (173M)
Philip Balister Open SDR A high performance interface between the OMAP3 and a FPGA Slides Video (51 minutes): full HD (347M), 450×800 (149M)
Jean Pihet NewOldBits.com The evolution of tracing and profiling for power management and accelerators Slides Video (40 minutes): full HD (428M), 450×800 (133M)
Elizabeth Flanagan Intel Delivering predictability: the Yocto project autobuilder, automated sanity testing, license collection and build statistics tracking Slides Video (48 minutes): full HD (241M), 450×800 (133M)
Mythri pk Texas Instruments Bringing up HDMI display for OMAP4 Panda board: design, challenges and lessons learned Slides Video (40 minutes): full HD (363M), 450×800 (122M)
Khem Raj Debug/develop uClibc with QEMU Slides Video (35 minutes): full HD (226M), 450×800 (98M)
Gunter Ravi Sankar Samsung What are and how to find a program’s unused DSOs Slides Video (49 minutes): full HD (453M), 450×800 (143M)
As every year, FOSDEM, the largest community-driven open source conference in Europe, took place early February in Brussels. And again, Bootlin was around with its HD camcorder, to record the conferences of interest for embedded developers. They are now available for download!
As usual, Bootlin will again be present at the FOSDEM conference in Brussels, on February, 4th and February 5th. We will of course mostly be attending the Embedded DevRoom, with multiple talks around development in the embedded space.
Around each FOSDEM conference and Embedded Linux Conference Europe event, we have been organizing a Buildroot Developer Day for a few years, in order to gather some developers and users of the 
As promised by the time-based release schedule, a new 
I was invited to speak at the 
In agreement with the speakers, these videos are released under the terms of the 
