Bootlin talks at the Embedded Linux Conference Europe

Father Mathew BridgeThe Embedded Linux Conference Europe 2015 will take place on October 5-7 in Dublin, Ireland. As usual, the entire Bootlin engineering team will participate to the event, as we believe it is one of the great way for our engineers to remain up-to-date with the latest embedded Linux developments and connect with other embedded Linux and kernel developers.

The conference schedule has been announced recently, and a number of talks given by Bootlin engineers have been accepted:

We submitted other talks that got rejected, probably since both of them had already been given at the Embedded Linux Conference in California: Maxime Ripard’s talk on dmaengine and Boris Brezillon’s talk on supporting MLC NAND (which we regret since Boris is currently actively working on this topic, so we are expecting to have some useful results by the time of ELCE, compared to his ELC talk which was mostly a presentation of the issues and some proposals to address them). Interested readers can anyway watch those talks and/or read the slides.

In addition to the Embedded Linux Conference Europe itself:

  • Thomas Petazzoni will participate to the Buildroot developers meeting on October 3/4, right before the conference.
  • Alexandre Belloni will participate to the OEDEM, the 2015 OpenEmbedded Developer’s European Meeting, taking place on October 9 after the conference.

Bootlin team back from ELCE and Linux Plumbers

As we announced in an earlier blog post, the entire Bootlin engineering team was at the Embedded Linux Conference Europe and Linux Plumbers Conference last week in Düsseldorf.

Bootlin engineering team at the Embedded Linux Conference Europe 2014
Bootlin engineering team at the Embedded Linux Conference Europe 2014. From left to right, Grégory Clement, Alexandre Belloni, Maxime Ripard, Antoine Ténart, Thomas Petazzoni, Boris Brezillon and Michael Opdenacker.

In addition to attending many talks, meeting developers of the embedded Linux community and therefore keeping us up-to-date with the most recent developments in this domain, we also gave a number of talks, for which the slides are now available:

Boris Brezillon giving his DRM/KMS talk
Boris Brezillon giving his DRM/KMS talk
Maxime Ripard giving his Allwinner kernel talk
Maxime Ripard giving his Allwinner kernel talk
Thomas Petazzoni giving his Buildroot talk
Thomas Petazzoni giving his Buildroot talk
At the social event, from left to right: Grégory Clement (Bootlin), Kevin Hilman (Linaro), Boris Brezillon (Bootlin), Maxime Ripard (Bootlin)
At the social event, from left to right: Grégory Clement (Bootlin), Kevin Hilman (Linaro), Boris Brezillon (Bootlin), Maxime Ripard (Bootlin)

All the slides of the conference are also available on the event site of the Linux Foundation, and all talks have been video-recorded by the Linux Foundation so hopefully videos should become available in the near future.

2014 Q3 newsletter

Bootlin is happy to share some news about the latest training and contribution activities of the company.

Kernel contributions

Since our last newsletter, our engineering team continued to make significant contributions to the Linux kernel, especially in the area of supporting ARM processors and platforms:

  • 218 patches from Bootlin were merged into Linux 3.15, making Bootlin the 12th contributing company for this release by number of patches. See our blog post.
  • 388 patches from Bootlin were merged into Linux 3.16, making Bootlin the 7th contributing company for this release, by number of patches. See our blog post.
  • For the upcoming 3.17 release, we already have 146 patches merged, and we have a lot more work being done for future kernel releases.

The major areas of our contributions were:

  • The addition of an ubiblk driver, which allows traditional block filesystems to be used on top of UBI devices, and therefore on NAND flash storage. Only read-only support is available, but it already allows to make use of the super efficient SquashFS filesystem on top of NAND flash in a safe way.
  • Another major addition is support for the new Marvell Armada 375 and Armada 38x processors. In just two releases (3.15 and 3.16) we almost pushed entire support for these new processors. The network driver for Armada 375 is one missing piece, coming in 3.17.
  • Our maintenance work on the Atmel AT91 and SAMA5 processors has continued, with more conversion to the Device Tree, the common clock framework, and other modern kernel mechanisms. We have also developed the DRM/KMS (graphics) driver for the SAMA5D3 SoC, which has already been posted and should hopefully be merged soon.
  • Our work to support the Marvell Berlin processor has started to be merged in 3.16. This processor is used in various TVs, set-top boxes or devices like the Google Chromecast. Basic support was merged including Device Trees, clock drivers, pin-muxing driver, GPIO and SDHCI support. AHCI support will be in 3.17, and USB and network support should be in 3.18.
  • Additional work was done on support for Allwinner ARM SoCs, especially the A31 processor: SPI and I2C support, drivers for the P2WI bus and the PRCM controller, and support for USB.

We now have broad experience in writing kernel drivers and getting code merged into the mainline tree. Do not hesitate to contact us if you need help to develop Linux kernel drivers, or to support a new board or processor.

Buildroot contributions

Our involvement into the Buildroot project, a popular embedded Linux build system, is going on. We have merged 159 patches in the 2014.05 release of the project (total of 1293 patches), and 129 patches in the 2014.08 release of the project (total of 1353 patches). Moreover, our engineer Thomas Petazzoni is regularly an interim maintainer of the project, when the official maintainer Peter Korsgaard is not available. Some of the major features we contributed: major improvements to Python 3 support, addition of EFI bootloaders, addition of support for the Musl C library.

Regular embedded Linux projects

Of course, we also conducted embedded Linux development and boot time optimization projects for various embedded system makers, with less visible impact on community projects. However, we will try to share generic technical experience from such projects through future blog posts.

New training course: Yocto Project and OpenEmbedded

A large number of embedded Linux projects use embedded Linux build systems to integrate the various software components of the system into a working root filesystem image. Among the solutions available to achieve this, the Yocto Project and OpenEmbedded are very popular.

We have therefore launched a new 3 day Yocto Project and OpenEmbedded training course to help engineers and companies who are using, or are interested in using these solutions for their embedded Linux projects. Starting from the basics of understanding the core principles of Yocto, the training course goes into the details of writing package recipes, integrating support for a board into Yocto, creating custom images, and more.

The detailed agenda of the training course is available. You can order this training course at your location, or participate to the first public session organized on November 18-20 in France.

Embedded Linux training course updated

The embedded Linux ecosystem is evolving very quickly, and therefore we are continuously updating our training courses to match the latest developments. As part of this effort, we have recently conducted a major update to our Embedded Linux course: the hardware platform used for the practical labs has been changed to the popular and very interesting Atmel Xplained SAMA5D3, and many practical labs have been improved to provide a more useful learning experience. See our blog post for more details.

Mailing list for training participants

We have launched a new service for the participants to our training sessions: a mailing list dedicated to them, and through which they can ask additional questions after the course, share their experience, get in touch with other training participants and Bootlin engineers. Of course, all Bootlin engineers are on the mailing list and participate to the discussions. Another useful service offered by our training courses!

This resource is no longer available, but participants to our training sessions are still welcome to contact us by e-mail.

Conferences: ELC, ELCE, Kernel Recipes

The Bootlin engineering team will participate to the Embedded Linux Conference Europe and Linux Plumbers, next month in Düsseldorf, Germany. Several Bootlin engineers will also be giving talks during ELCE:

In addition, Thomas will participate to the Buildroot Developers Day, taking place right before the Embedded Linux Conference Europe in Düsseldorf.

See also our blog post about ELCE for more details.

Maxime Ripard and Michael Opdenacker will participate to the Kernel Recipes 2014 conference, on September 25-26 in Paris. Maxime will be giving his Allwinner kernel talk at this conference. See our blog post for more details.

Last but not least, we have recently published the videos of a number of talks from the previous Embedded Linux Conference, held earlier this year in San Jose. A lot of interesting material about embedded Linux! Check out our blog post for more details.

Upcoming training sessions

We have a number of public training sessions dates, with seats available:

Sessions and dates

Bootlin at the Embedded Linux Conference Europe

DüsseldorfThe Embedded Linux Conference Europe will take place on October 13-15 in Düsseldorf, Germany. As usual, a large part of the Bootlin engineering team will participate to the conference, with no less than 7 engineers: Alexandre Belloni, Boris Brezillon, Grégory Clement, Michael Opdenacker, Thomas Petazzoni, Maxime Ripard and Antoine Ténart.

Several of our talk proposals have been accepted, so we’ll be presenting about the following topics:

In addition to this participation to the Embedded Linux Conference Europe:

  • Many of us will also participate to the Linux Plumbers conference, on October 15-17. It’s another great opportunity to talk about topics around real-time, power management, storage, multimedia, and more.
  • Thomas Petazzoni will participate to the next Buildroot Developers Meeting.

As usual, we’re looking forward to this event! Do not hesitate to get in touch with us if you’re interested in meeting us during these events for specific discussions.

Bootlin at the ARM Kernel Summit, the Embedded Linux Conference and the Buildroot Developers Meeting

Late october will be a busy moment for all the embedded Linux developers meeting in Edinburgh, UK. The Linux Foundation is organizing a number of conferences here, including the Embedded Linux Conference Europe (October 24-25) and LinuxCon Europe (October 21-23), and many co-located other events.

Bootlin will be present at several of these events:

  • First, three Bootlin engineers will be present at the ARM kernel summit on October 22nd and 23rd. The ARM kernel summit is an invitation-only conference, organized in relation with the Linux Kernel Summit. Gregory Clement, Maxime Ripard and Thomas Petazzoni, engineers at Bootlin have been invited due to their participation to the ARM support in the kernel, mainly on Allwinner SOCs for Maxime and on Marvell SOCs for Gregory and Thomas. Being present at this event is an excellent opportunity to be part of the discussion that shapes the future of ARM support in Linux, and strengthen our relations with other members of this growing community.
  • Then, the entire technical team of Bootlin will attend the Embedded Linux Conference, on October 24th and 25th. Several talks will also be given by Bootlin engineers:
    • On Thursday, 24th October at 11:40 AM, Thomas Petazzoni will give a talk titled Device Tree for dummies!, which will give an introduction to the Device Tree on ARM: what it is, how it is compiled, how it used by the kernel, how Device Tree bindings are defined, how drivers are affected by the Device Tree, etc.
    • At the same time in another room, Michael Opdenacker will lead a Bird of a Feather session dedicated to Small Businesses in the embedded Linux world. Exchanging experiences, networking with other companies working in the same field, etc.
    • Still on Thursday, at 3 PM, Gregory Clement will give a talk on the Linux kernel Common Clock Framework, which will be an updated version of the talk he gave at ELC earlier this year.
    • On Friday, 25th October at 9:30 AM, Thomas Petazzoni will be part of the keynote panel session dedicated to a discussion on Embedded Linux build systems together with Tim Bird (Sony Mobile), Ross Burton (Intel), and Karim Yaghmour (Opersys), the panel being moderated by Jeff Osier-Mixon (Intel).
  • On Saturday 26th and Sunday 27th October, the Buildroot community is organizing its traditional Developers Meeting, to which Thomas Petazzoni will participate. Some of the core Buildroot developers will join for two days of discussion and work to improve this embedded Linux build system.

As you can see, this will be a very interesting and busy week, and we’re all looking forward to meeting more embedded Linux developers and learning about the latest technologies in this field.

Videos of the Embedded Linux Conference Europe 2012

With the approaching Embedded Linux Conference, to be held February 20-22 in San Francisco, we felt that it was time to finally fight with ffmpeg/libav and get the videos we had taken from the last Embedded Linux Conference Europe talks, encode them and publish them online. So here they are, as what we could consider a late Christmas gift.

There are so many talks that it might be hard to watch everything. So I’d like to share with you my preferred talks from this last ELCE (of course, I haven’t been able to see all talks, but only a third of them, so the following selection is only taken from the talks I have seen) :

  • For sure, the talk I have preferred is the Understanding PREEMPT_RT (The Real-Time Patch) talk from Steven Rostedt (Redhat). In an hour, Steven explained some very interesting internals of PREEMPT_RT, in a very clear way. Definitely a must see, in my opinion.
  • I also enjoyed the ARC Linux: From a Tumbling Toddler to a Graduating Teen talk from Vineet Gupta (Synopsys). While talking about a specific new CPU architecture that probably most of us have never used, Vineet is able to tell a very nice story by bringing you through various issues they had while porting Linux on this new CPU architecture, giving interesting and funny technical details in the process.
  • The talk about Regmap: The Power of Subsystems and Abstractions from Mark Brown (Wolfson Microelectronics) was also very good, in that it clearly explained the need for this new kernel subsystem, how the API works, etc. Definitely the kind of talk I’d like to see about more kernel subsystems: in an hour, you learn the philosophy of the subsystem, why it’s there, how it has been designed to solve the original problems, and the basics of its APIs. It’s often what’s missing from an API documentation: the philosophy behind it. Hour long talks that are capable of conveying this philosophy are therefore highly useful.
  • As usual, David Anders talk, this time about Board bringup: you, me and I2C has been very nice as well. It is a good introduction about electronics related to I2C, it doesn’t go very far for anyone having an existing experience of I2C, but is indeed a very good introduction for those who don’t. I really enjoyed the good explanation about pull-up resistors.
  • Finally, another talk that was great is Samuel Ortiz (Intel) talk about Near Field Communication with Linux. A bit like the Regmap talk, the great benefit of Samuel talk is that in an hour, he went through the different hardware available for NFC in Linux, the architecture of the software stack, the different software components that exist, their strenghts and weaknesses and so on. So without any prior knowledge about NFC, you get at the end of the talk a very good coverage of how this technology is supported by Linux today.

Well, enough with my suggestions, here is the complete list of videos:

Matt RanostayVideo capture
Beaglebone: The Perfect Telemetry Platform?
Slides
Video (24 minutes):
full HD (153M), 800×450 (74M)

Jim HuangVideo capture
0xlab
Implement Checkpointing for Android
Slides
Video (43 minutes):
full HD (291M), 800×450 (168M)

Wolfram SangVideo capture
Pengutronix e.K.
Maintainer’s Diary: Devicetree and Its Stumbling Blocks
Slides
Video (49 minutes):
full HD (329M), 800×450 (160M)

Matthias BruggerVideo capture
ISEE 2007 S.L.
A War Story: Porting Android 4.0 to a Custom Board
Slides
Video (34 minutes):
full HD (230M), 800×450 (106M)

Kishon Vijay AbrahamVideo capture
Texas Instruments
USB Debugging and Profiling Techniques
Slides
Video (40 minutes):
full HD (245M), 800×450 (109M)

Alan OttVideo capture
Signal 11 Software
Wireless Networking with IEEE 802.15.4 and 6LoWPAN
Slides
Video (52 minutes):
full HD (339M), 800×450 (156M)

João Paulo Rechi VitaVideo capture
INdT
Bluetooth Smart devices and Low Energy support on Linux
Slides
Video (36 minutes):
full HD (250M), 800×450 (116M)

Peter StugeVideo capture
OpenOCD: Hardware Debugging and More
Video (47 minutes):
full HD (316M), 800×450 (155M)

Alessandro RubiniVideo capture
PF_ZIO: Using Network Frames to Convey I/O Data and Meta-Data
Slides
Video (48 minutes):
full HD (317M), 800×450 (141M)

Joo-Young HwangVideo capture
Samsung
A New File System Designed for Flash Storage in Mobile
Slides
Video (54 minutes):
full HD (369M), 800×450 (152M)

Alexandre BelloniVideo capture
Adeneo Embedded
Boot Time Optimizations
Slides
Video (39 minutes):
full HD (261M), 800×450 (129M)

Philipp ZabelVideo capture
Pengutronix e.K.
Modular Graphics on Embedded ARM
Slides
Video (32 minutes):
full HD (217M), 800×450 (100M)

Karim YaghmourVideo capture
Opersys
Inside Android’s User Interface
Slides
Video (42 minutes):
full HD (284M), 800×450 (117M)

Samuel OrtizVideo capture
Intel
Near Field Communication with Linux
Slides
Video (35 minutes):
full HD (232M), 800×450 (92M)

Arnout VandecappelleVideo capture
Essensium/Mind
Upgrading Without Bricking
Slides
Video (56 minutes):
full HD (373M), 800×450 (172M)

Tim BirdVideo capture
Sony Network Entertainment
BoFs: Developer Tools and Methods: Tips & Tricks
Slides
Video (62 minutes):
full HD (395M), 800×450 (160M)

Matt LockeVideo capture
Texas Instruments
Are We Headed for a Complexity Apocalypse in Embedded SoCs?
Video (27 minutes):
full HD (167M), 800×450 (76M)

Sascha HauerVideo capture
Pengutronix e.K.
Barebox Bootloader
Slides
Video (47 minutes):
full HD (313M), 800×450 (134M)

Benjamin ZoresVideo capture
Alcatel-Lucent
Dive Into Android Networking: Adding Ethernet Connectivity
Slides
Video (46 minutes):
full HD (270M), 800×450 (118M)

Jiyoun ParkVideo capture
Samsung
Experiences as an OEM with Development of UI Frameworks
Video (42 minutes):
full HD (282M), 800×450 (158M)

Keshava MunegowdaVideo capture
Texas Instruments
FFSB and IOzone: File system Benchmarking Tools, Features and Internals
Slides
Video (56 minutes):
full HD (367M), 800×450 (171M)

Chris SimmondsVideo capture
2net Limited
The End of Embedded Linux (As We Know It)
Slides
Video (47 minutes):
full HD (324M), 800×450 (150M)

Steven RostedtVideo capture
Red Hat
Understanding PREEMPT_RT (The Real-Time Patch)
Slides
Video (61 minutes):
full HD (412M), 800×450 (186M)

Klaas van GendVideo capture
Vector Fabrics
Application Parallelization for Multi-Core Android Devices
Slides
Video (44 minutes):
full HD (293M), 800×450 (124M)

David AndersVideo capture
Texas Instruments
Board Bringup: You, Me, and I2C
Slides
Video (38 minutes):
full HD (217M), 800×450 (97M)

Rama PallalaVideo capture
Intel
Linux Power Supply Charging Subsystem
Video (35 minutes):
full HD (213M), 800×450 (83M)

Agusti FontquerniVideo capture
ISEE 2007 S.L.
Embedded Linux RADAR Device
Slides
Video (50 minutes):
full HD (331M), 800×450 (140M)

Matt PorterVideo capture
Texas Instruments
What’s Old Is New: A 6502-based Remote Processor
Slides
Video (58 minutes):
full HD (389M), 800×450 (181M)

Thomas PetazzoniVideo capture
Bootlin
Your New ARM SoC Linux Support Check-List
Slides
Video (56 minutes):
full HD (362M), 800×450 (150M)

Tracey M. Erway and Nithya A. RuffVideo capture
Intel and Synopsys
Can You Market an Open Source Project?
Slides
Video (43 minutes):
full HD (272M), 800×450 (103M)

Lars KnollVideo capture
Qt Project
Qt on Embedded Systems
Video (50 minutes):
full HD (337M), 800×450 (175M)

Koen KooiVideo capture
Circuitco
Supporting 200 Different Expansionboards: The Broken Promise of Devicetree
Slides
Video (37 minutes):
full HD (232M), 800×450 (102M)

Anna DushistovaVideo capture
Eclipse and Embedded Linux Developers: What it Can and Cannot Do For You
Slides
Video (58 minutes):
full HD (378M), 800×450 (167M)

Dave StewartVideo capture
Intel
Yocto Project Overview and Update
Video (52 minutes):
full HD (338M), 800×450 (139M)

Vineet GuptaVideo capture
Synopsys
ARC Linux: From a Tumbling Toddler to a Graduating Teen
Slides
Video (44 minutes):
full HD (269M), 800×450 (113M)

Laurent PinchartVideo capture
Ideas on Board
DRM/KMS, FB and V4L2: How to Select a Graphics and Video API
Slides
Video (48 minutes):
full HD (328M), 800×450 (145M)

Frank RowandVideo capture
Sony Network Entertainment
Practical Data Visualization
Slides
Video (46 minutes):
full HD (308M), 800×450 (141M)

Marcin JuszkiewiczVideo capture
Linaro
ARM 64-Bit Bootstrapping with OpenEmbedded
Slides
Video (32 minutes):
full HD (208M), 800×450 (88M)

Wim DecroixVideo capture
TPVision
Practical Experiences With Software Crash Analysis in TV
Slides
Video (35 minutes):
full HD (224M), 800×450 (87M)

Mark BrownVideo capture
Wolfson Microelectronics
Regmap: The Power of Subsystems and Abstractions
Video (44 minutes):
full HD (282M), 800×450 (124M)

Hans VerkuilVideo capture
Cisco Systems
Video4Linux: Current Status and Future Work
Slides
Video (33 minutes):
full HD (217M), 800×450 (100M)

Holger BehrensVideo capture
Wind River
Yocto Layer for In-Vehicle Infotainment
Slides
Video (43 minutes):
full HD (284M), 800×450 (123M)

Tero KristoVideo capture
Texas Instruments
Debugging Embedded Linux (Kernel) Power Management
Slides
Video (36 minutes):
full HD (241M), 800×450 (108M)

Martin BisVideo capture
BIS
Real-Time Linux in Industrial Appliances
Slides
Video (48 minutes):
full HD (323M), 800×450 (145M)

Jens GeorgVideo capture
Openismus GmbH
Rygel: Open Source DLNA, ready for Customer Products?
Slides
Video (33 minutes):
full HD (215M), 800×450 (88M)

Yoshitake KobayashiVideo capture
Toshiba
Improvement of Scheduling Granularity for Deadline Scheduler
Slides
Video (31 minutes):
full HD (195M), 800×450 (82M)

Tsugikazu ShibataVideo capture
NEC
LTSI (Long-Term Stable Initiative) Status Update
Slides
Video (44 minutes):
full HD (278M), 800×450 (111M)

Thomas GleixnerVideo capture
Linutronix
UBI Fastmap
Slides
Video (45 minutes):
full HD (299M), 800×450 (121M)

ELCE 2012 slides: porting Linux to new ARM SoC

We are just returning from Barcelona, Spain, after participating to the 2012 edition of the Embedded Linux Conference Europe. My colleague Thomas Petazzoni has delivered the below presentation:

Your New ARM SoC Linux Support Check-List

Since Linus Torvalds raised warnings about the state of the ARM architecture support in the Linux kernel, a huge amount of effort and reorganization has happened in the way Linux supports ARM SoCs. From the addition of the device tree to the pinctrl subsystem, from the new clock framework to the new rules in code organization and design, the changes have been significant over the last one and half year in theARM Linux kernel world.

Based on the speaker’s experience on getting the new Marvell Armada 370 and Armada XP SoC supported in the mainline Linux kernel, we will give an overview of those changes and summarize the new rules for ARM Linux support. We aim at helping developers willing to add suppot for new ARM SoCs in the Linux kernel by providing a check-list of things to do.

Thomas Petazzoni is an embedded Linux engineer and trainer at Bootlin since 2008. He has been involved with multiple projects around the Linux kernel, especially the mainlining of Marvell Armada 370/XP SoCs support. He is also a major contributor to the Buildroot embedded Linux build system with more than 1100 patches merged.

The presentation slides and their sources are now available here. We have also shot a video of Thomas’ talk and it should be available in the next weeks. Stay tuned!

Do not hesitate to contact us if you are looking for engineers to port Linux to new hardware.

Embedded Linux Conference Europe 2011 videos

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.

Jim ZemlinVideo capture
Executive Director of The Linux Foundation
Imagine a World Without Linux
Video (24 minutes):
full HD (220M), 450×800 (76M)

Linus Torvalds, Alan Cox, Thomas Gleixner, Paul McKenneyVideo capture
moderated by Lennart Poettering
Kernel Developer Panel
Video (55 minutes):
full HD (622M), 450×800 (191M)

Zach PfefferVideo capture
Linaro
Linaro’s Android Platform
Video (45 minutes):
full HD (604M), 450×800 (164M)

Thomas GleixnerVideo capture
Linutronix
State of PREEMPT_RT
Video (46 minutes):
full HD (374M), 450×800 (147M)

Jessica ZhangVideo capture
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 UedaVideo capture
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 ZoresVideo capture
Alcatel-Lucent
Embedded Linux Optimization Techniques: How Not To Be Slow
Slides
Video (44 minutes):
full HD (328M), 450×800 (125M)

Ohad Ben-CohenVideo capture
Texas Instruments
Remote Processor Messaging
Slides
Video (48 minutes):
full HD (433M), 450×800 (131M)

Jeff Osier-MixonVideo capture
Intel
Collaborative Initiatives in Embedded Linux
Video (26 minutes):
full HD (266M), 450×800 (73M)

Karim YaghmourVideo capture
Opersys Inc.
Leveraging Android’s Linux Heritage
Video (51 minutes):
full HD (419M), 450×800 (168M)

Pierre TardyVideo capture
Intel
Using pytimechart For Real World Analysis
Slides
Video (51 minutes):
full HD (495M), 450×800 (132M)

Arnd BergmannVideo capture
Linaro
Optimizations for Cheap Flash Media
Video (44 minutes):
full HD (524M), 450×800 (146M)

Vitaly WoolVideo capture
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 StewartVideo capture
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 KobayashiVideo capture
Kyoto Micro Computer
Android is NOT Just “Java on Linux”
Slides
Video (37 minutes):
full HD (542M), 450×800 (129M)

Thomas PetazzoniVideo capture
Bootlin
Using Buildroot For a Real Project
Slides
Video (55 minutes):
full HD (408M), 450×800 (156M)

Tim BirdVideo capture
Sony Network Entertainment
Status of Embedded Linux BoFs
Slides
Video (60 minutes):
full HD (877M), 450×800 (213M)

Lauro Ramos Venancio and Samuel OrtizVideo capture
Instituto Nokia de Tecnologia, Intel
The Linux NFC Subsystem
Slides
Video (31 minutes):
full HD (229M), 450×800 (87M)

David AndersVideo capture
Texas Instruments
Board Bringup: LCD and Display Interfaces
Slides
Video (39 minutes):
full HD (242M), 450×800 (98M)

Antti AumoVideo capture
President of Global Solutions at Ixonos
Re-Defining the Cloud Phone
Video (32 minutes):
full HD (360M), 450×800 (108M)

Dirk HohndelVideo capture
Chief Linux and Open Source Technologist at Intel
Reflection on 20 Years of Linux
Video (30 minutes):
full HD (235M), 450×800 (92M)

Grant LikelyVideo capture
Secret Lab
Device Tree Status Report
Video (51 minutes):
full HD (775M), 450×800 (178M)

Laurent PinchartVideo capture
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 SripathyVideo capture
Texas Instuments
SOC Power Management – Debugging and Optimization Techniques
Video (41 minutes):
full HD (288M), 450×800 (108M)

Rafael J. WysockiVideo capture
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 HauerVideo capture
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 DerwigVideo capture
Synopsys
Android Platform Optimizations
Slides
Video (43 minutes):
full HD (266M), 450×800 (105M)

Inki DaeVideo capture
Samsung Electronics
DRM Driver Development For Embedded Systems
Slides
Video (22 minutes):
full HD (367M), 450×800 (91M)

Lorenzo PieralisiVideo capture
ARM Ltd.
Consolidating Linux Power Management on ARM Multiprocessor Systems
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Bootlin
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Marek Szyprowski and Kyungmin ParkVideo capture
Samsung Electronics
ARM DMA-Mapping Framework Redesign and IOMMU Integration
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Keerthyd Jagadeesh and Vishwanath SripathyVideo capture
Texas Instruments
Thermal Framework for ARM based SOCs
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ST Microelectronics
Efficient JTAG-Based Linux Kernel Debugging
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Tsugikazu ShibataVideo capture
NEC and Linux Foundation Board Member
Toward the Long Term Stable Kernel tree for The Embedded Industry
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Lisko LappalainenVideo capture
MontaVista Software
Secure Virtualization in Automotive
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Intel
Yocto Project Community BoFs
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Jon CorbetVideo capture
Editor at LWN.net
The Kernel Report: 20th Anniversary Edition
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Senior Vice President, Linux and Virtualization Engineering at Oracle
Engineered Systems With Linux
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ST-Ericsson
ARM Linux Kernel Alignment and Benefits For Snowball
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Texas Instruments
Smart Audio: Next-Generation ASoC For Smart Phones
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ARM Ltd.
Linux on Non-Existing SoCs
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The Angstrom Distribution
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Grsecurity in Embedded Linux Used in Android Operating System
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Samsung Electronics
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Linaro
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Sony Network Entertainment
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ARM Ltd.
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Jim HuangVideo capture
0xlab
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JBB Rechtsanwälte
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Intel
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Pengutronix e.K.
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Back from Embedded Linux Conference Europe 2011

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.

Prague

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
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)
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.

Bootlin at Embedded Linux Conference Europe 2011

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.

ELCE 2011

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.