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September 16-18, 2024
Vienna, Austria
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Note: The schedule is subject to change.

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IMPORTANT NOTE: Timing of sessions and room locations are subject to change.

Embedded Linux Conference clear filter
Monday, September 16
 

11:20 CEST

Embedded Linux in EOD Robots - Lessons Learned - Marcin Bis, Łukasiewicz Research Network – Industrial Research Institute for Automation and Measurements PIAP
Monday September 16, 2024 11:20 - 12:00 CEST
Lessons learned, benefits and some drawbacks learned from utilizing Embedded Linux, Yocto Project and other parts of Opensource software stack in development, production and maintenance of Mobile Robots for special operations. A history of the Polish mobile robots has begun in 1999 with a prototype INSPECTOR robot designed and build by Łukasiewicz Research Network – Industrial Research Institute for Automation and Measurements PIAP. Since about 2010 the robots became digital and started to use Linux and build systems. The talk covers some practical aspects of design and implementation of ARM and x86 Explosive Ordnance Disposal (EOD) mobile robots, the industry transformation and response to Embedded Linux and Yocto Project software stack from a perspective of small engineering team chasing a constantly shifting targets. An insight, successes and failures throughout more than 10 years of utilizing Embedded Linux, Yocto Project, real-time aspects of the operating system and additional topics such as software update, system monitoring, safety critical operations and data encryption and safety will be also covered.
Speakers
avatar for Marcin Bis

Marcin Bis

Lead Programmer, Łukasiewicz Research Network – Industrial Research Institute for Automation and Measurements PIAP
I have been dealing with Linux since 2007, working with customers to create business value by migrating to open-source solutions. I am always eager to work on challenging projects as they sharpen my skills through hands-on experience and contribute to the growth of the industry. I... Read More →
Monday September 16, 2024 11:20 - 12:00 CEST
Hall B (Level 2)
  Embedded Linux Conference
  • Audience Level Beginner
  • Presentation Slides Attached Yes

11:20 CEST

How to Enable Android (AOSP) on Your Developer Board - Mattijs Korpershoek, BayLibre
Monday September 16, 2024 11:20 - 12:00 CEST
Most embedded development boards can run Linux from traditional distros like Debian to custom Yocto systems. But have you ever wondered what it would take to run Android Open Source Project (AOSP) on these developer boards? Well, wonder no more. This talk will walk you through it. Using a ARM based Texas Instruments evaluation board as example, we will start from TI's Yocto SDK then download AOSP and study all the changes needed in order to boot to the Android home screen. We will cover: - Bootloader (U-Boot) modifications required for Android boot flow - Linux kernel versus Android Common Kernel (ACK) - User space changes - Android's build system - Additional changes to add more advanced features
Speakers
avatar for Mattijs Korpershoek

Mattijs Korpershoek

Software engineer, BayLibre
Mattijs works on embedded Android systems since Kitkat (2014). He started at Intel on various smartwatches running Android Wear. Wanting to contribute to open-source projects, he joined BayLibre in 2020. Since then, he and his colleagues have been bringing up Android on various boards... Read More →
Monday September 16, 2024 11:20 - 12:00 CEST
Hall C (Level 2)
  Embedded Linux Conference
  • Audience Level Any
  • Presentation Slides Attached Yes

12:15 CEST

How Did You Cook It? About Honda’s AOSP-Based IVI(in-Vehicle Infotainment) System - Yuichi Kusakabe, Honda Motor Co., Ltd.
Monday September 16, 2024 12:15 - 12:55 CEST
This presentation is the story of Honda's first in-house software development of IVI(In-Vehicle Infotainment) software. Reasons why Honda promotes in-house software development, Building an in-house software development team that started with two people, All development process from scratch, There is no silver bullet that will solve many problems. However, we were able to success the launced this model based on Honda's DNA of Waigaya, A00, and 120% quality products. The key point for this is the use of AOSP(Android Open Source Project) and some OSS. This presentation will show how a traditional automotive OEM like Honda was able to create an in-house software development team, and how it used OSS, including AOSP. By applying OpenChain(ISO/IEC 5230) self-certification and SPDX Lite to our development process, we were able to solve many problems and get a higher starting point. However, vehicles have difficult requirements, so we will tell you the points to minimize customization of OSS.
Speakers
avatar for Yuichi Kusakabe

Yuichi Kusakabe

Chief Architect/OSPO Tech Lead, Honda Motor Co., Ltd.
Yuichi Kusakabe is the Lead Architect at Honda Motor Co., Ltd. , AGL(Automotive Grade Linux) member and COVESA(Connected Vehicle Systems Alliance) member since 2011 with over twenty years of Automotive and Open Source Software Experience. Prior to joining Honda Motor he worked for... Read More →
Monday September 16, 2024 12:15 - 12:55 CEST
Hall C (Level 2)
  Embedded Linux Conference
  • Audience Level Beginner
  • Presentation Slides Attached Yes

12:15 CEST

How to Build Your Own High-Performance Charger with EVerest - Andreas Heinrich & Kai-Uwe Hermann, Pionix GmbH
Monday September 16, 2024 12:15 - 12:55 CEST
In this talk we will give you a comprehensive overview of the complex task of building a high-performance DC vehicle charging station. We will show you how the EVerest project addresses a diverse set of challenges across all areas of the required software stack. EVerest abstracts away the complexities of reliably communicating with vehicles of all makes and models to enable successful charging sessions with robust implementations of the relevant communication protocols, such as ISO 15118-2/20 and DIN 70121 including Plug & Charge. Communication with backend systems of different providers can be achieved through the OCPP 2.0.1 and 1.6 standards. We will also explain how error handling and reporting are managed in a system running a diverse set of EVerest modules. Additionally we will discuss our strategy for generating comprehensive documentation for a project that spans multiple actively developed repositories. EVerest is an Apache 2.0 licensed project within LF Energy. It was initiated by PIONIX GmbH to support the electrification of the mobility sector.
Speakers
avatar for Kai-Uwe Hermann

Kai-Uwe Hermann

Principal Engineer, Pionix GmbH
Kai-Uwe Hermann studied computer science at the Karlsruhe Institute of Technology and worked as a researcher in a robotics and autonomous driving group. Since 2021 he works as a Principal Engineer at PIONIX and is one of the driving forces behind the LF Energy Project EVerest
avatar for Andreas Heinrich

Andreas Heinrich

Software Developer, PIONIX GmbH
Andreas Heinrich started coding with LEGO Mindstorms as a kid. He joined PIONIX in 2021 and works on software for EV charging. His bachelor's thesis focused on energy management and optimizing photovoltaic self-consumption. He enjoys working on projects that make a positive impac... Read More →
Monday September 16, 2024 12:15 - 12:55 CEST
Hall B (Level 2)

13:20 CEST

AOSP Developers Birds of a Feather - Chris Simmonds, 2net Ltd
Monday September 16, 2024 13:20 - 14:00 CEST
This Birds of a Feather meeting is an opportunity for all developers working with embedded Android to come together and share ideas, grumbles and clever hacks. Some of the topics you might like to talk about include these: * Building AOSP * Creating and maintaining board support packages * Integration with Android Studio * Testing and debugging * Security, SELinux, secomp, sandboxing Come along if you find *any* of this stuff interesting!
Speakers
avatar for Chris Simmonds

Chris Simmonds

software consultant, 2net Ltd
Chris Simmonds is a software consultant and professional geek living in Northern England. He has more than two decades of experience in designing and building open-source embedded systems. He is a big believer in Open Source and the importance of community. He is the author of the... Read More →
Monday September 16, 2024 13:20 - 14:00 CEST
Hall C (Level 2)
  Embedded Linux Conference

13:20 CEST

ELinux Wiki BOF - Tim Bird, Sony Electronics
Monday September 16, 2024 13:20 - 14:00 CEST
In this session, the status of the elinux wiki will be discussed, along with ideas for expanding and updating the content for the site. The elinux wiki has served as a resource for embedded Linux developers for almost 18 years. The wiki contains a lot of great material, including slides and videos for almost every embedded Linux Conference. In this session, Tim will discuss the wiki, and we'll brainstorm ideas for rejuvenating the site, and utilizing it as an effective community resource. Rewards will be available if you make an edit to the wiki during the BOF!! Let's work together to improve this valuable resource!
Speakers
avatar for Tim Bird

Tim Bird

Principal Software Engineer, Sony Electronics
Tim Bird is a Principal Software Engineer for Sony Corporation, where he helps Sony use Linux and other open source software in their products. Tim is the maintainer of the Fuego test framework, and is involved with various Linux Foundation projects (including being a member of the... Read More →
Monday September 16, 2024 13:20 - 14:00 CEST
Hall B (Level 2)
  Embedded Linux Conference
  • Audience Level Any
  • Presentation Slides Attached Yes

14:15 CEST

Linux in Space: Fault Detection, Recovery and Fault-Tolerant System Designs - Lenka Kosková Třísková & Lukas Mazl, Technical University of Liberec & Tomas Novotny, VZLU
Monday September 16, 2024 14:15 - 14:55 CEST
Linux in space must be highly reliable and autonomous, both because of the hostile external environment, the physical unavailability of the system, and the limited data flow and direct system administration capabilities. Radiation and other external influences lead to sudden shutdowns and system reboots. Also, data stored in storage devices are at risk of radiation and physical effects. Therefore, the design of a satellite always considers which parts of the system to duplicate or otherwise insure and how to ensure the system's ability to detect an error and recover. In the design of Linux4Space, we have encountered various approaches to solving the problem (from "we have two SD cards, and one is sure to last six months" to "fully duplicated storage and CPU with error detection"). We have reviewed the designs of other satellites and systems. In this paper, we provide some specific examples from natural satellites and summarize everything we have been able to find and track down for various other solutions, examples, and demonstrations.
Speakers
avatar for Tomas Novotny

Tomas Novotny

Research and Development Engineer, Czech Aerospace Research Centre (VZLÚ)
Tomáš Novotný is an embedded Linux systems developer. He currently works on embedded systems for satellites. His previous projects were in the fields of biometric access systems, home automation, and fire engine control.
avatar for Lenka Kosková Třísková

Lenka Kosková Třísková

Teacher, Researcher, Technical University of Liberec
Lenka is an embedded software developer with a long history in the automotive and avionics industries. She has worked for STMicroelectronics, Skoda Auto, and Hood GmbH as a software specialist and requirements engineer. She teaches the operating systems theory and runs several research... Read More →
avatar for Lukas Mazl

Lukas Mazl

Researcher and Lecturer, Technical University of Liberec
Lukáš Mázl graduated from the IT study program at the Technical University of Liberec, where he is now working as a Ph. D. student and researcher. He had been working in the Unicorn software company as a software architect. He is the project leader of Linux4Space.
Monday September 16, 2024 14:15 - 14:55 CEST
Hall B (Level 2)
  Embedded Linux Conference
  • Audience Level Beginner
  • Presentation Slides Attached Yes

14:15 CEST

The Devboards Community for Android - Amit Pundir, Linaro Ltd.
Monday September 16, 2024 14:15 - 14:55 CEST
"Which device prototype or a development board do you suggest?" - got to be one of the most frequently asked question in the embedded workspace. Last year EOSS/ELC'23 was no different and we ran into similar questions around Android development boards. That planted the idea of enabling a community around the development boards or devices that provide decent AOSP (Android Open Source Project) support.

So we started working on The Devboards for Android community initiative https://devboardsforandroid.linaro.org to enable a collaborative space for AOSP system developers. We briefly talked about it at the Android Microconf at LPC'23 as well.

Overall idea of this project is to provide an umbrella space for collaboration and consolidate all the resources about the devices that are known to support AOSP reliably. For each supported device, links are made available to the kernel source, local manifests, device specific files and binaries (like bootloader, firmware, HALs) and documentation. We hope that this initiative will be instrumental in sharing and co-developing features like generic HALs across multiple devices and possibly enabling the supported devices with LAVA CI in the future.
Speakers
avatar for Amit Pundir

Amit Pundir

Senior Engineer, Linaro Ltd.
Senior Engineer at Linaro
Monday September 16, 2024 14:15 - 14:55 CEST
Hall C (Level 2)
  Embedded Linux Conference
  • Audience Level Beginner
  • Presentation Slides Attached Yes

15:25 CEST

From Hardware to Linux - Stefan Eichenberger, embear GmbH
Monday September 16, 2024 15:25 - 16:05 CEST
This presentation will show a step-by-step guide from hardware design to a fully functional Linux system. Initial considerations in the hardware design phase will help simplify the bringup. This includes designing for testability and incorporating features that make debugging easier, such as having accessible test points and providing instrumentation, such as a serial console and a JTAG interface. The next phase involves the bootloader, which is the first software component to run on the system. At this stage, we can use JTAG for early debugging to get some text output and eventually a console. The transition to the Linux kernel involves strategies that may include using JTAG again for early kernel debugging, followed by using printk and KDB for later diagnostics. The final phase involves the root file system and userspace tools that help bring up the rest of the peripherals. This final section of the presentation shows some userspace diagnostic and debugging tools for successfully getting a Linux-based system up and running.
Speakers
avatar for Stefan Eichenberger

Stefan Eichenberger

Embedded Software Engineer, embear GmbH
I started my career 20 years ago with an apprenticeship as an electronics technician. I was always fascinated by embedded software, which led me to study electrical engineering and computer science. Since then I have been working as an embedded software engineer using embedded Linux... Read More →
Monday September 16, 2024 15:25 - 16:05 CEST
Hall C (Level 2)
  Embedded Linux Conference

15:25 CEST

What's Happening with Automotive Grade Linux and How Our Update to Yocto 5.0 Went - Walt Miner, The Linux Foundation & Scott Murray, Konsulko Group
Monday September 16, 2024 15:25 - 16:05 CEST
Automotive Grade Linux released the Quirky Quillback version of the UCB in February and Royal Ricefish is coming in the Summer of 2024. The latest release includes an update to the Yocto project LTS version 5.0. We will give an update on the latest AGL features included in the Ricefish release. We also want to share some lessons learned from upgrading from the 4.0 to 5.0 versions of the Yocto Project.
Speakers
avatar for Walt Miner

Walt Miner

Senior Director of Community - Automotive Grade Linux, The Linux Foundation
Walt Miner is the Senior Director of Community at The Linux Foundation and has served as Community Manager for Automotive Grade Linux since 2014. Walt has spoken at numerous conferences throughout the worlds and brings over 30 years of embedded software development and management... Read More →
avatar for Scott Murray

Scott Murray

Principal Software Engineer, Konsulko Group
Scott has been a Linux user for almost 30 years, and has developed Linux based embedded products for almost 25 years at a variety of companies large and small. Currently, he works for Konsulko Group as a Principal Software Engineer, providing embedded Linux engineering services for... Read More →
Monday September 16, 2024 15:25 - 16:05 CEST
Hall B (Level 2)
  Embedded Linux Conference
  • Audience Level Beginner
  • Presentation Slides Attached Yes

16:20 CEST

Embedded Audio Policies Made Easy with WirePlumber - George Kiagiadakis, Collabora
Monday September 16, 2024 16:20 - 17:00 CEST
Building robust audio policies on embedded systems that integrate well with upstream APIs and components such as PipeWire and PulseAudio has been a challenging task for a long time. In many implementations, custom hardware DSP management components are built, bypassing existing upstream functionality, making integration and maintenance harder than they need to be. In this talk, George will explain how many of these difficulties can be overcome by integrating management directly into WirePlumber, the default session manager of PipeWire, and how existing functionality can be factored in to build complex solutions with ease. Emphasis will be given also on how recent developments in WirePlumber have improved this particular use case.
Speakers
avatar for George Kiagiadakis

George Kiagiadakis

Principal Software Engineer, Collabora
George Kiagiadakis is a principal software engineer at Collabora, with over 14 years of experience in open source and embedded multimedia projects in particular. He is the author and maintainer of WirePlumber, a modular session manager for PipeWire, and has worked extensively with... Read More →
Monday September 16, 2024 16:20 - 17:00 CEST
Hall B (Level 2)
  Embedded Linux Conference

16:20 CEST

Practical Application of Verified Boot - Rouven Czerwinski, Pengutronix e.K.
Monday September 16, 2024 16:20 - 17:00 CEST
More and more applications of embedded linux systems require them to ensure that only trusted software is started on the device. This means that verified boot procedures need to be employed to verify the software running on the device. This talk will highlight the necesssary components to cryptographically verify the bootloader, kernel and filesystem. It will also show how these components can be integrated using the OpenEmbedded build system. Bootloader verification will be covered by providing examples to use the signing.bbclass in Yocto in conjunction with the NXP CST tool to sign a bootloader, kernel verification is covered by a to be upstreamed fitimage class and filesystem verification will be shown with a dm-verity class example for Yocto. Additionally the talk will highlight common pitfalls when deploying locked down embedded systems encountered during project work. We will also cover the case of using GPLv3 licenses on locked down devices.
Speakers
avatar for Rouven Czerwinski

Rouven Czerwinski

Embedded Linux Developer, Pengutronix e.K.
At first building the labgrid hardware access layer, rouven nowadays works on security solutions for embedded devices.
Monday September 16, 2024 16:20 - 17:00 CEST
Hall C (Level 2)
  Embedded Linux Conference
 
Tuesday, September 17
 

09:00 CEST

Linux Power Management Features, Their Relationships and Interactions - Théo Lebrun, Bootlin
Tuesday September 17, 2024 09:00 - 09:40 CEST
Over time, many features have been introduced into the Linux kernel to tackle various Power Management related needs. Most features rely upon the device model to provide its features, making each feature in isolation have rather understandable behavior and straight forward APIs. Complexity can creep in however when those various features interact with each other. We'll therefore cover features in isolation: system-wide suspend, hibernation, runtime power management, power domains, Quality of Service, etc. On each new step added, we'll stop to reflect on potential interactions or conflicts with previously seen features. Some of those will come from concrete issues encountered during the upstreaming effort of Suspend-to-RAM support on an automative SoC, the TI J7200 platform.
Speakers
avatar for Théo Lebrun

Théo Lebrun

Embedded Linux engineer, Bootlin
Théo joined Bootlin as an intern, studying the potential applications for the PipeWire ecosystem to embedded topics. He then went onto kernel work: suspend-to-RAM support for a TI automotive SoC and upstreaming of base platform support for Mobileye platforms.
Tuesday September 17, 2024 09:00 - 09:40 CEST
Hall B (Level 2)
  Embedded Linux Conference

09:00 CEST

Visions for the Linux Kernel PWM Subsystem - Uwe Kleine-König, BayLibre
Tuesday September 17, 2024 09:00 - 09:40 CEST
PWMs are used in a wide range of applications. Most in-kernel usages have only soft requirements regarding precision and switching behaviour (LEDs, fan control, backlight). However if you control a motor you might have higher demands that currently cannot be mapped generically using the current PWM API given the wide variance of hardware drivers and hardware limitations. In this talk Uwe presents his vision how the PWM framework can be changed to better match the needs for higher precision and better control of PWM devices. This includes: * faster and easier control from userspace * tighter rules for lowlevel drivers * a way to determine the best request for a given use case on a certain hardware * more general abstraction of the PWM waveform
Tuesday September 17, 2024 09:00 - 09:40 CEST
Hall C (Level 2)
  Embedded Linux Conference

09:50 CEST

Give Me Back My GPIO Persistence! (Introducing the libgpiod GPIO-Manager) - Bartosz Golaszewski, Linaro
Tuesday September 17, 2024 09:50 - 10:20 CEST
Ever since the GPIO character device was introduced as a proposed uAPI replacement for the deprecated sysfs interface, users have been pointing to the lack of persistence of GPIO state (as in: once the user-space process closes the file descriptor associated with a set of requested lines, their state is no longer defined - in practice: it's driver dependent) as the main issue with the new approach and a significant blocker in porting code from sysfs to libgpiod. Two solutions have been proposed: making the GPIO state persistent in the kernel or providing a centralized authority for controlling GPIOs from user-space. For various reasons the former has been rejected which led to the development of gpio-manager: a user-space daemon built on top of libgpiod that exposes an API to authorized clients and controls GPIOs on their behalf. This talk will present the features of the daemon, the DBus API it implements and the companion command-line client - gpiocli - which aims at allowing straightforward porting of sysfs-based scripts to the new interface.
Speakers
avatar for Bartosz Golaszewski

Bartosz Golaszewski

Linux Kernel Developer, Linaro
Bartosz Golaszewski has over 15 years of engineering experience in the embedded systems domain ranging from low-level, real-time operating systems, through the linux kernel up to user-space plumbing, libraries and build systems. Bartosz has contributed hundreds of patches to a wide... Read More →
Tuesday September 17, 2024 09:50 - 10:20 CEST
Hall C (Level 2)
  Embedded Linux Conference

10:10 CEST

Pinctrl and GPIO - Interactions and Footguns - Chen-Yu Tsai, Google LLC
Tuesday September 17, 2024 10:10 - 10:30 CEST
The Linux Kernel has two subsystems that handle external pins: pinctrl that handles function muxing and electrical characteristics, and GPIO that handles generic input/output usage on individual pins. Depending on how the hardware is implemented, the two could be completely separate, or deeply intertwined. This presentation will introduce the hardware integration designs , how they should map to the kernel subsystems. We will dive deeper into the latter case and show how the kernel subsystems can handle it properly with "strict" GPIO pin muxing, and what could happen if the driver isn't implemented correctly, using existing in-tree drivers.
Speakers
avatar for Chen-Yu Tsai

Chen-Yu Tsai

Software Engineer, Google LLC
Chen-Yu is a software engineer that started working on the Linux kernel bringing up Allwinner SoCs in 2013. Chen-Yu currently works for Google on their ChromeOS team.
Tuesday September 17, 2024 10:10 - 10:30 CEST
Hall B (Level 2)
  Embedded Linux Conference

11:00 CEST

Testing Your Yocto Project - from Ptest and Testimage to LAVA - Clara Kowalsky & Florian Bezdeka, Siemens
Tuesday September 17, 2024 11:00 - 11:40 CEST
Before setting up a test automation framework for your Yocto project, it is worth considering which options are available and most suitable. In this talk, we will explore which tools are appropriate depending on project complexity and scalability. For a small Yocto project where a test environment needs to be up and running as quickly as possible and only one piece of hardware is supported, a complete test setup can be created using only the testimage class for image testing and ptest for package testing. The tests can be carried out locally or in a CI/CD system. Using Gitlab CI/CD as an example, we will show how the results of testimage can be neatly displayed as a unit test report. For more complex projects that support a variety of architectures and require tests to be automatically scheduled on devices, it is advisable to use an automated test framework. We will demonstrate how ptest and pytest can be integrated into a LAVA test environment and what alternatives to LAVA exist.
Speakers
avatar for Clara Kowalsky

Clara Kowalsky

Linux Software Engineer, Siemens AG
Clara Kowalsky is working as a consultant software engineer in the Linux Expert Center at Siemens Technology. She is regularly contributing to multiple inner-source and open-source projects, especially in the field of real-time (e.g., Xenomai) and embedded Linux tooling. She gives... Read More →
avatar for Florian Bezdeka

Florian Bezdeka

Linux Software Engineer, SIEMENS AG
Florian is working as a consultant software engineer in the Linux Expert Center at Siemens Technology. He is regularly contributing to multiple inner-source and open-source projects, especially in the field of real-time Linux (e.g., Xenomai) and embedded Linux tooling. He gives internal... Read More →
Tuesday September 17, 2024 11:00 - 11:40 CEST
Hall C (Level 2)
  Embedded Linux Conference
  • Audience Level Any
  • Presentation Slides Attached Yes

11:00 CEST

The Case for an SoC Power Management Driver - Stephen Boyd, Google
Tuesday September 17, 2024 11:00 - 11:40 CEST
DeviceTree (DT) based systems usually lack a platform or firmware based device power management framework. Device drivers are left to figure out if a device is already powered on at probe and duplicate power management logic to manage system resources such as clks or interconnects. This is unlike ACPI based systems where the firmware provides standardized device power states to power on or off a device and mostly hides system resources behind a firmware interface. This session will make the case for implementing an ACPI-like power management framework in the Linux kernel via pmdomains registered by a System-on-Chip (SoC) driver. First we'll discuss the problem and previously attempted or ongoing solutions. Then we'll cover a case study implementing an SoC power management driver. Attendees will leave with a greater understanding of SoC power management techniques and the problems kernel developers face in supporting such hardware upstream along with a possible solution to implement this design elsewhere.
Speakers
avatar for Stephen Boyd

Stephen Boyd

Software Engineer, Google, Google
Stephen Boyd has been a Linux kernel developer since 2009 and a Linux kernel maintainer since 2014. He's currently the maintainer of the kernel's clk and SPMI subsystems working on ChromeOS at Google.
Tuesday September 17, 2024 11:00 - 11:40 CEST
Hall B (Level 2)
  Embedded Linux Conference

11:55 CEST

Building and Maintaining Binary Distributions with Yocto - Michael Opdenacker, Root Commit
Tuesday September 17, 2024 11:55 - 12:35 CEST
Imagine a world in which you can try the Yocto Project without even using it. This was possible in the past with the Ångström distribution, offering ready-made images which could be extended through binary package feeds. Though Ångström is long gone, the Yocto Project still has the ability to generate such images and package feeds. While system makers are still using this feature, the Yocto Project itself has never published such binaries. The Yocto Project, thanks to funding from the Sovereign Tech Fund, has recently developed its abilities to support binary distributions, by creating tooling to verify the ability to upgrade the images built for its releases through package feeds, and to support managing a "local" distribution that can customize packages offered by an "upstream" distribution. Since Yocto is about recipes, I will first present a cookbook for building your own images so that they can be updated through package feeds. I will then describe the recently developed features related to binary distributions and what possibilities they open for the Yocto Project and its users.
Speakers
avatar for Michael Opdenacker

Michael Opdenacker

Embedded Linux Consultant and Trainer, Root Commit
Michael Opdenacker is an independent consultant and trainer specialized in embedded Linux. He is the founder of Bootlin, who contributed to Linux World Domination by training thousands of engineers around the world on embedded Linux and its kernel, sharing all its materials under... Read More →
Tuesday September 17, 2024 11:55 - 12:35 CEST
Hall B (Level 2)
  Embedded Linux Conference

11:55 CEST

Eight Years of Farming; Is Everybo(Ar)Dy Happy? - Geert Uytterhoeven, Glider bv
Tuesday September 17, 2024 11:55 - 12:35 CEST
8 years ago, at ELCE 2016, Geert talked about the benefits and modalities of organizing development boards in a board farm, and he introduced his personal board farm. Since then, more boards found their way into his farm, with more to come. Also, other developers asked him for remote access to his boards. In this presentation, Geert will talk about the evolution of his board farm. He will tell you about things that worked well, or didn't work well, and how he improved his farm, using readily available or custom hardware. He will discuss the challenges of growing your farm, in a changing world plagued by supply chain hick-ups. He will present a way to share boards in your farm with other developers and (automated) testers, using the backend-agnostic "FRAM" tool to grant remote control to only one or more boards, and not to your whole local infrastructure.
Speakers
avatar for Geert Uytterhoeven

Geert Uytterhoeven

Embedded Linux Kernel Hacker, Glider bv
Geert Uytterhoeven became involved with Linux 30 years ago, when he started hacking the Linux kernel to make it work better on his Amiga. This paved the way for a long string of contributions to Linux. In 2013, Geert founded Glider bv (http://glider.be/), to build upon the (embedded... Read More →
Tuesday September 17, 2024 11:55 - 12:35 CEST
Hall C (Level 2)
  Embedded Linux Conference

13:00 CEST

BOF: Automated Testing & Board Farming - Rouven Czerwinski & Jan Lübbe, Pengutronix
Tuesday September 17, 2024 13:00 - 13:40 CEST
In face of the strict requirements of the CRA legislation on the horizon for EU markets, one of the key techniques to rapidly test new software releases is an automated testing setup. This session wants to collect the current state of the automated testing landscape and discuss current development directions, tools and projects. We will provide a quick summary of current projects in the space and than have a quick vote on which topics to discuss. Thereafter we encourage discussion between the audience members.

We'll be using a shared document to gather topics before and during the BoF and collect notes during the discussions:

https://docs.google.com/document/d/1oM0AREY_X-3QMBb8SRUHq1yYcJ4BaWE39gYxmYkr8AI/edit?usp=sharing

Speakers
avatar for Jan Lübbe

Jan Lübbe

CTO, Pengutronix
After building Linux smartphones with OpenMoko and deploying open source GSM networks to cruise ships, Jan Lübbe joined Pengutronix in 2012 as a kernel hacker. Since then he started the RAUC and labgrid projects. In his free time, Jan builds open mesh networks at the Stratum 0 hacker... Read More →
avatar for Rouven Czerwinski

Rouven Czerwinski

Embedded Linux Developer, Pengutronix e.K.
At first building the labgrid hardware access layer, rouven nowadays works on security solutions for embedded devices.
Tuesday September 17, 2024 13:00 - 13:40 CEST
Hall C (Level 2)
  Embedded Linux Conference
  • Audience Level Beginner
  • Presentation Slides Attached Yes

13:00 CEST

RISC-V and RISE Project BoF - Drew Fustini, Tenstorrent
Tuesday September 17, 2024 13:00 - 13:40 CEST
RISC-V is an open instruction set that is taking the world by storm, enabling new and creative hardware designs across the spectrum of computing devices - many of which are themselves open. This BoF is a meeting place at EOSS to discuss the current state of RISC-V as well as the RISE Project, an open source initiative under LF Europe to support the RISC-V software ecosystem.
Speakers
avatar for Drew Fustini

Drew Fustini

Linux Kernel Engineer, Tenstorrent
Drew Fustini is a Linux kernel engineer at Tenstorrent. He also serves on the board of directors for the BeagleBoard.org Foundation and is an ambassador for the RISC-V Foundation.  Drew maintains support for the TH1520 SoC and boards like the Beagle-V Ahead in the Linux kernel.
Tuesday September 17, 2024 13:00 - 13:40 CEST
Hall B (Level 2)
  Embedded Linux Conference
  • Audience Level Any
  • Presentation Slides Attached Yes

14:00 CEST

BoF: The Yocto Project and OpenEmbedded - Josef Holzmayr, Northern.tech as Mender.io & Philip Balister, OpenSDR
Tuesday September 17, 2024 14:00 - 14:40 CEST
This BoF provides an open forum for the Embedded Linux community to ask questions and discuss issues with the Yocto Project and OpenEmbedded community. We open with a Yocto Project summary and OpenEmbedded State of the Union. All users, contributors and maintainers as well as curious minds are invited to bring their thoughts and topics.
Speakers
avatar for Philip Balister

Philip Balister

Minister of Progress, OpenSDR
avatar for Josef Holzmayr

Josef Holzmayr

Head of Developer Relations, Northern.tech as Mender.io
Josef has been active for more than 15 years as a "Complete"-Stack developer for industrial controls by now. A passion for showing, telling, and teaching people in both entertaining and engaging ways led Josef to Mender.io. Here, he tries to make the world better and more secure by... Read More →
Tuesday September 17, 2024 14:00 - 14:40 CEST
Hall B (Level 2)

14:00 CEST

Inspecting and Optimizing Memory Usage in Linux - João Marcos Costa, Bootlin
Tuesday September 17, 2024 14:00 - 14:40 CEST
Considering a context where the hardware platform disposes of a restricted amount of RAM, developers need to understand how this resource is managed and consumed by the operating system and the applications running on it. In such situations, it is crucial to use the right metrics and tooling to identify which components are excessively allocating resources, trim them down, and finally get close to the strict necessary memory usage without compromising essential features. This presentation explores RAM management in the Linux kernel, focusing on how much memory is allocated across different areas and for what purposes. From a kernel space perspective, it will dive into the components of memory reserved in early boot. Considering the user space perspective, the presentation will explain how much memory is used by processes, both individually and collectively.
Speakers
avatar for João Marcos Costa

João Marcos Costa

Embedded Linux and Kernel engineer, Bootlin
João graduated in 2020 with a master degree in Physical engineering and embedded systems from ENSICAEN, a French engineering school, as well as an Electrical Engineering degree in 2021 from the Universidade Federal do Rio Grande do Norte in Brazil. Through his various experiences... Read More →
Tuesday September 17, 2024 14:00 - 14:40 CEST
Hall C (Level 2)
  Embedded Linux Conference

14:55 CEST

Embedded Linux Security: Dr. Jekyll and Mr. Hyde - Richard Weinberger, sigma star gmbh
Tuesday September 17, 2024 14:55 - 15:35 CEST
Linux-based embedded systems are increasingly common, yet they often face security challenges. While Linux already has a good set of security features, it is often not trivial to choose the right ones and use them properly.
In his presentation, Richard will discuss the typical issues he sees when collaborating with clients on embedded systems.

He aims to highlight essential pitfalls to steer clear of in your upcoming projects.
Speakers
avatar for Richard Weinberger

Richard Weinberger

Co-Founder, sigma star gmbh
Richard is co-founder of sigma star gmbh where he offers consulting services around Linux and IT security. Upstream he maintains various subsystems of the Linux kernel such as UserModeLinux and UBIFS. Beside of low level and security aspects of computers he enjoys growing lithops... Read More →
Tuesday September 17, 2024 14:55 - 15:35 CEST
Hall C (Level 2)
  Embedded Linux Conference

14:55 CEST

Licensing Support by Build Systems - and What Remains To Be Done - Jan Altenberg, Open Source Automation Development Lab (OSADL) eG
Tuesday September 17, 2024 14:55 - 15:35 CEST
Building embedded Linux systems is getting increasingly complex. The complexity does not only come from the technical aspects. The number of different packages and dependencies also make the fulfilment of license obligations quite challenging. Build systems and distro generators support us with this task. They can help in getting an overview of the licenses being used and packaging the relevant compliance material. But how far does their support really go? And is the information being provided complete?

This presentation will take a look into different licensing obligations (e.g. information obligations and disclosure obligations) and (based on the examples of the Yocto project, ELBE and ISAR) the licensing support of modern build systems will be evaluated.
Speakers
avatar for Jan Altenberg

Jan Altenberg

Director, Open Source Automation Development Lab (OSADL) eG
Jan Altenberg has more than 20 years of experience in developing and maintaining Embedded Linux systems. Jan studied information technologies at the University of Cooperative Education in Stuttgart (Germany). From 2002 - 2006 he was involved in the OCEAN project, a European research... Read More →
Tuesday September 17, 2024 14:55 - 15:35 CEST
Hall B (Level 2)
  Embedded Linux Conference

16:00 CEST

Advanced System Profiling, Tracing and Trace Analysis with Perfetto in Android and Yocto - Anna-Lena Marx & Stefan Lengfeld, inovex GmbH
Tuesday September 17, 2024 16:00 - 16:40 CEST
Tracing is a capable mechanism for deep system analysis and profiling with a minimal overhead. By recording defined system events, in Linux but also Android, tracing can be used to analyze concurrency or latency issues, for example. Android’s systrace tool made it easy to analyze and correlate traces and events due to a graphical UI, in order to help developers identify performance bottlenecks. The successor to this advanced and convenient tool is called Perfetto. It’s available for pure Linux too, and part of Yocto (meta-oe) since Langdale now. In the talk, we’ll have a look into - using Perfetto with Android and Yocto, - adding trace events to your applications, - recording traces and - analyzing system and application traces with the graphical GUI. This will allow you to take full advantage of the Perfetto trace viewer UI for analyzing memory usage, CPU scheduling, latency and more.
Speakers
avatar for Anna-Lena Marx

Anna-Lena Marx

Senior Embedded Systems Engineer, inovex GmbH
Anna-Lena Marx has been working as an Embedded Systems Developer at inovex since 2015 and holds a Master's degree in Embedded Systems. As a hobby, she also studies Electrical Engineering. Professionally, Anna-Lena focuses on the development of Embedded Systems based on Yocto or the... Read More →
avatar for Stefan Lengfeld

Stefan Lengfeld

Senior Embedded Systems Engineer, inovex GmbH
Stefan Lengfeld has been an Embedded Linux and Embedded Android developer at inovex since 2017. He is a Linux kernel contributor and has been professionally involved in all topics related to embedded software development since 2015. Even before that, he dove into the depths of Linux... Read More →
Tuesday September 17, 2024 16:00 - 16:40 CEST
Hall B (Level 2)
  Embedded Linux Conference

16:00 CEST

Mesa3D Unveiled: From glDrawArrays(…) to GPU Magic - Christian Gmeiner, Igalia
Tuesday September 17, 2024 16:00 - 16:40 CEST
Mesa3D, often called Mesa, is a key part of the Linux graphics system, serving as an open-source implementation of the OpenGL API for rendering 3D graphics. It also supports other APIs like Vulkan and OpenGL ES.

This session will demystify Mesa3D, starting with GPU functions and its interaction with computers, laying the groundwork for understanding how Mesa powers 3D graphics. We'll use rendering a triangle as a case study to explore Mesa3D’s architecture—from initiating EGL and compiling shaders to sending work to the GPU, making the complex process more accessible.

The goal is for everyone to walk away with a clearer understanding of Mesa’s role in Linux graphics and its importance to the open-source community, specially on embedded platforms, where open-source drivers are getting much more relevance for long term maintainability, feature support and customization.

Here, I mention embedded platforms because many of our customers use open-source drivers. This allows them to include these drivers in their products without depending on proprietary solutions from manufacturers, which may not even be available (some are only available on Android, not Linux).
Speakers
avatar for Christian Gmeiner

Christian Gmeiner

Developer, Igalia
Christian Gmeiner is a graphic driver developer, to which he hasbeen contributing since 2013. He has started his 10 years long careerby joining the reverse engineering efforts around Vivante GPUs followedby doing contractor work helping companies leverage etnaviv's graphic stack.He... Read More →
Tuesday September 17, 2024 16:00 - 16:40 CEST
Hall C (Level 2)
  Embedded Linux Conference
  • Audience Level Beginner
  • Presentation Slides Attached Yes

16:55 CEST

Taming DMA: Tales Wrestling Memory Corruption - Ahmad Fatoum, Pengutronix
Tuesday September 17, 2024 16:55 - 17:35 CEST
Direct Memory Access frees up the CPU for other important work, while devices read and write data in the background. This is as good as it sounds and most embedded systems make ample use of this; for good sound and otherwise. On the flipside, incorrectly configured DMA and the creeping memory corruption that results can decidedly be more unpleasant than the possible slow-down of using PIO. Ahmad's bootloader and kernel escapades have not been spared from the wrath of DMA masters. In this talk, he will share tales of his debugging campaigns and how tracking down memory corruption led him to learn, one bug at a time, more about the internals of Linux' and barebox' DMA API, ARM cache maintenance and the limitations of DMA controllers.
Speakers
avatar for Ahmad Fatoum

Ahmad Fatoum

Embedded Linux Developer, Pengutronix
Ahmad joined the kernel team at Pengutronix in 2018 to work full-time on furthering Linux world domination. He does so by helping automotive and industrial customers build embedded Linux systems based on the mainline Linux kernel. Having a knack for digging in low-level guts, his... Read More →
Tuesday September 17, 2024 16:55 - 17:35 CEST
Hall C (Level 2)
  Embedded Linux Conference

16:55 CEST

Using Yocto to Debug Embedded Device Crashes - Etienne Cordonnier, Snap Inc
Tuesday September 17, 2024 16:55 - 17:35 CEST
It is challenging to debug hard to reproduce crashes on embedded devices. Due to limited space constraints, it is often not feasible to deploy full debug symbols. Core dumps are a great tool to debug such crashes. The Yocto project offers several features to help with working with core dumps, such as minidebuginfo and debuginfod combined with debug symbol servers. Used with crash-monitoring software and systemd core dump tooling, those features make it easier for developers to analyze and solve crashes happening only e.g. in production.
Speakers
avatar for Etienne Cordonnier

Etienne Cordonnier

Software Engineer, Snap Inc
Etienne Cordonnier is an embedded software developer who has worked on various Linux and FreeRTOS embedded products such as consumer audio products, smart-meters, as well as robotic devices. He likes to use and contribute to open-source projects, mostly the Yocto project. In his free... Read More →
Tuesday September 17, 2024 16:55 - 17:35 CEST
Hall B (Level 2)
  Embedded Linux Conference
 
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