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Embedded systems vary wildly in purpose, characteristics and usage. They are therefore faced with very different adversaries, that engineers and designers must take into account to achieve a secure system or product. The tradeoff between security and convenience can only be properly arbitrated by evaluating the benefits of each security measure against the cost of its implementation, and the added complexity to the system, which will eventually be surfaced to the user.
In this talk, we will explore the security guarantees of various security measures popular in embedded Linux systems: Secure Boot, Disk encryption, dm-verity, Secure Enclaves as well as someapplication-level security features from the point of view of what they bring to a system, and what they cost to the implementer or theuser. Ultimately, we will present what type of systems they are a good fit for, and which systems are probably better off not using them.
This session dives into the hardware and software design decisions behind restructuring a PMIC driver to support multiple device families with minimal upstream churn. We'll explore techniques for scalable driver design, lessons learned from managing variations across similar devices, and strategies for maximizing code reuse across subsystems. Real-world examples of accepted and discarded approaches will be shared. The goal is to spark a community discussion around best practices for future multi-device driver development across various hardware families.
Shree Ramamoorthy is a software engineer for the Power Management Integrated Circuit (PMIC) team at Texas Instruments. She focuses on PMIC Linux driver development and customer GUIs.
Monday August 25, 2025 09:55 - 10:35 CEST Elicium 2
The ODM ecosystem — such as the one found in Asia — offers a rich selection of pre-designed hardware intended for white-labelling. This hardware can be produced and shipped with short lead times. However, a typical weakness of these devices is their software, which usually consists of outdated kernels and poorly documented components. Wholesale replacement of the system’s software stack while leveraging the hardware offers a path toward creating robust devices that can sidestep many of the complexities of manufacturing a fully custom design.
In this session we share tips and learnings from our experience creating a replacement software stack using Yocto for an existing white-label IoT gateway device. With this approach, we were able to take a new device with an up-to-date Linux stack to production in under 6 months.
The session will cover topics including: choosing of an appropriate hardware platform, coordinating with the hardware vendor, setting up an efficient development environment using similar hardware and simulators, and using the system’s OTA update infrastructure to create a factory image that’s compatible with an ODM’s existing manufacturing and testing flows.
Nick Chen is a Principal Software Engineer at Blecon, specialising in embedded Linux and UX. After receiving a Ph.D. in Computer Science from the University of Maryland, Nick was a researcher at Microsoft Research where he created new user interfaces and interactions for networks... Read More →
Monday August 25, 2025 11:20 - 12:00 CEST Elicium 2
As launch cadence increases and development cycles tighten, the space industry turns to open source to meet the moment. Enter Space Grade Linux (SGL) — an initiative under the ELISA Project aimed at creating a reusable, safety-aware Linux foundation for spaceflight systems.
This talk will introduce the goals and current status of SGL, highlighting three foundational focus areas: 1. Kernel Configuration – Defining a shared starting point for space-focused Linux systems, emphasizing predictability, determinism, and traceability. 2. Booting into Linux: Exploring the safety-critical implications of system bring-up and strategies for improving reliability in space-grade deployments. 3. Userspace Strategy – Discussing early-stage decisions around minimal runtime environments, supervision, and what a safe, maintainable userspace might look like.
Attendees will get a hands-on overview of what’s already available in the GitHub repository, including a Yocto-based reference implementation and working kernel configuration. More importantly, they’ll learn how to get involved — through technical contributions, architecture discussions, or community collaboration.
Ramón Roche is General Manager of the Dronecode Foundation, an open-source project under the Linux Foundation supporting drone and robotics development. He leads a global ecosystem behind technologies like PX4 and Pixhawk, and has over a decade of experience in open source. Ramón... Read More →
Monday August 25, 2025 13:30 - 14:10 CEST Elicium 2
WiFi is a cornerstone of modern connectivity, and Linux powers countless devices that rely on seamless wireless communication. But how does a WiFi driver actually work within the Linux kernel? In this talk, we will explore the process of supporting a Wifi device in Linux, focusing on its integration with the mac80211 and cfg80211 subsystems. We’ll cover key aspects such as hardware initialization, packet transmission, regulatory compliance, power management, and more. Additionally, we’ll discuss how userspace tools like iw, hostapd, and wpa_supplicant interact with kernel drivers via nl80211. By the end of this session, attendees will have a better understanding of the Linux WiFi stack and the skills needed to develop, debug, and extend WiFi drivers effectively, whether they want to implement a new one or improve an existing one.
Alexis is an embedded Linux developer and trainer with 9 years of experience, currently working at Bootlin. He has made several contributions to the Linux kernel, specifically around networking: support and improvement for ethernet switches and wireless chips, as well as improvements... Read More →
Monday August 25, 2025 14:25 - 15:05 CEST Elicium 2
Modern cars use a high integration architecture with a smaller amount of powerful Electronic Control Units (ECUs). They easily accommodate more than 150 different services and are developed by more than 1000 developers in dozens of companies across the world. Ensuring security in such an environment is a challenge in multiple dimensions: Attack surface, overall system complexity and communication.
In this talk, I want to share our insights from building three generations of Yocto-based infotainment systems. How do we ensure basics such as the least privilege principle and privilege separation? What is our approach to trusted computing with secure boot and dm-verity? What are our lessons learned to enable SELinux on this large scale? Which best-practices do we have so that the system can be developed, tested and debugged in a (security) configuration that is close to the final product?
Furthermore, I would like to give positive examples how a good open-source ecosystem can support our cause of building secure embedded Linux systems as well as some impulses which improvements could help us a lot.
Engineering Lead Infotainment Security, BMW Car IT GmbH
Martin studied computer science at RWTH Aachen University. He is interested in embedded systems, cybersecurity, math and open-source software. After a PhD in formal logic, he joined BMW Car IT in Ulm to work on security for infotainment systems as engineer and system architect. For... Read More →
Monday August 25, 2025 15:35 - 16:15 CEST Elicium 2
Power management in heterogeneous SoCs with multiple asymmetric multi processing cores running different operating systems needs a coordinated approach to attain SoC level low power states.
In order to choose a suspend to RAM mode, requirements from applications running on co-processors need to be communicated and honored.
This talk shall cover how the Linux remoteproc driver should implement the system suspend resume functions that will coordinate with firmware running on a remote core during suspend and resume of the system.
This talk will give attendees the understanding of what it takes for a heterogeneous SoC to leverage the remoteproc subsystem to implement graceful suspend and resume of remote cores.
We shall also look at the existing state of remoteproc driver in kernel, areas of improvements and optimization, and blockers we are facing in upstreaming suspend resume functionality in the TI’s remoteproc driver.
Akashdeep Kaur is lead embedded engineer in Texas instruments. She mainly works in power management firmware that involves security and device management to handle low power sequences.
Kendall Willis is an Embedded Software Engineer working at Texas Instruments. She primarily focuses on power management in ARM SoCs by enabling various low power modes in the Linux kernel.
Monday August 25, 2025 16:30 - 17:10 CEST Elicium 2
Bootloaders play a critical role in securing embedded systems, especially when implementing verified boot.
But while much attention goes into the cryptographic boot chain and run-time security, other parts of the bootloader are often overlooked — leaving a key component of the system exposed.
This talk outlines practical steps to harden a bootloader against different real-world threats.
Topics include identifying security-critical functionality, avoiding common pitfalls, slimming down the TCB and what kinds of hard- or software misconfiguration can silently undermine your defenses.
Along the way, we’ll use barebox as a practical example to show complementary approaches — like applying fuzzing to core logic, adding runtime hardening, and securely handling unlock scenarios — as well as how these could have mitigated a number of recently reported vulnerabilities.
Attendees will learn how to reduce risk during early system startup and improve the overall security posture of their embedded systems.
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 August 26, 2025 11:00 - 11:40 CEST Elicium 2
Although Android is pretty common as an embedded operating system, there are surprisingly few opportunities for us developers to come together. This BoF is such an opportunity. If you are working with Android in embedded, Automotive, TVs, custom ROMs or even if you just find this interesting, please come along. Bring with you your experiences, tips, tricks and grumbles about developing Android devices. As a starter, here are some of the topics that have come up in previous years:
Chris Simmonds is a software consultant and trainer living in southern England. He has spent almost two decades designing and building open-source embedded systems of all shapes and sizes, and he has encapsulated much of that experience in his book, “Mastering Embedded Linux Pr... Read More →
Tuesday August 26, 2025 13:00 - 13:40 CEST Elicium 2
In this session, I’m going to give an overview of the open-source ecosystem. I will start very broad, showcasing a selection of projects per category (simulators, middleware, autopilots, libraries and some selected open-source robots). For example, for simulators I’d show Gazebo, Webots, MuJoCo, pyrobosim, ir-sim. For the middleware, I would showcase ROS, YARP, DORA, Copper, and so on.
Then, I would like to focus on one or two hardware projects that are fully or partially open-source, and dive deep into their architecture, and perhaps try to show some simulated demo. The candidates for the deep dive that I'm considering for this presentation are:
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.
Breadths is so wide that it takes two talk to cover features. This is a continuation talk expanding on last year's.
Topics targeted are system-wide suspend wakeup sources, device & generic power domains, the concept of latency tolerance (QoS), async PM and others.
Théo joined Bootlin as an intern, studying the potential applications for the PipeWire ecosystem to embedded topics. He then went onto kernel work: deep suspend-to-RAM support for a TI automotive SoC and upstreaming of base platform support for Mobileye hardware. Théo also acts... Read More →
Wednesday August 27, 2025 09:00 - 09:40 CEST Elicium 2
OP-TEE is a Trusted Execution Environment (TEE) that serves as a companion to a non-secure Linux kernel running on an Arm processor. It operates on the secure side of ARM TrustZone and is one of several open-source operating systems compatible with it.
In this talk, we will explore
- Basics of TrustZone and basic introduction of OP-TEE
- Different types of trusted applications(TA) that OP-TEE provides
- Example usecases of TAs and which one to use for different usecases.
- Interaction of TAs ( and optee in general ) with the Linux
The talk will explain all this using an example application that allows writing and reading to/from the one-time programmable(OTP) efuses on Texas Instruments K3 platforms.
Manorit Chawdhry is a software engineer working at Texas Instruments in the Linux Core Product Development Team for Jacinto Processors. He primarily focuses on security for K3 devices and bootloaders.
Keerthy Jagadeesh is an ardent Linux developer team of the Texas Instruments and has been an active Linux contributor for the past 10+ years. He has worked on thermal management for TI SoCs, PMIC drivers, low power modes for AM437x SoCs. Maintains TI THERMAL DRIVER & maintains TI... Read More →
Wednesday August 27, 2025 09:50 - 10:30 CEST Elicium 2
Embedded systems must carefully balance limited resources. This presentation shows how we used eBPF to improve resource management in TizenOS through two solutions: a new low-memory detection system and a dynamic cache tuner. Our eBPF-based low-memory detector significantly reduced false alarms while identifying problems earlier than traditional approaches. The cache tuner successfully improved I/O performance during disk-heavy workloads while automatically reducing memory pressure. Both solutions use eBPF to collect data with minimal overhead. Ill share implementation details, code examples, and test results to help others apply similar approaches to their embedded systems, contributing reusable patterns that can strengthen resource management across the embedded Linux ecosystem.
Michał Wilczyński is a Linux Kernel Engineer at Samsung, working on Tizen OS—where he gets to hack on the heart of smart devices. Before that, he spent time at Intel building networking drivers for the Linux kernel, and earlier in his career, he worked at Nokia and F5 Networks... Read More →
Wednesday August 27, 2025 11:00 - 11:40 CEST Elicium 2
This talk will first introduce the audience to the Thread networking protocol: specifically designed to support Internet of Things (IoT) devices in homes and smart buildings. Thread standardizes wireless IPv6 communication between low-power, low-cost IoT devices, while also supporting end-to-end IP connectivity with other devices at home or on the Internet.
After the introduction we dive into more detail on OpenThread (https://openthread.io/), an open-source implementation of the Thread standard. Different OpenThread components are highlighted, and we’ll show what role each of these components plays: it may be from development of Thread-based consumer products, or testing new features for the Thread standard, to development of SDKs that Thread radio vendors offer. One specific component to highlight is the OpenThread Border Router, an embedded Linux based IoT device that orchestrates communication between Thread devices and other IPv6/IPv4 hosts.
We hope to show the open source community that OpenThread offers interesting opportunities to venture into IoT: covering a range of developer skillsets, platforms and languages.
Saurabh Kumar has worked on Smart Home technologies since 2013 as part of the Samsung SmartThings Hub Firmware team. Since 2019, he’s contributed to open standards like Matter and Thread. Currently, he leads open source efforts in the Smart Home space. He holds a Bachelor’s degree... Read More →
Connectivity architect, IoTconsultancy.nl / Thread Group, Inc.
Esko Dijk started working on the IPv6-based Internet of Things in 2010, contributing to IETF standards, while employed at Philips Research. After two years at Signify (wireless mesh networks for lighting) he started his current role in 2018: as a systems architect, specification designer... Read More →
Wednesday August 27, 2025 11:55 - 12:35 CEST Elicium 2
Debian ensures long-term stability and offers a wide range of packages that simplify software development. However, it lacks tools to efficiently create reproducible and customizable images as provided by Yocto. In this talk, we give an update on the open source build system Isar, which has been around since 2017 and combines the strengths of Debian and Yocto to create images for various x86, ARM64 and RISC-V boards.
Using the RPi4b as an example, we walk you through setting up the build environment, adding your application and flashing the image to the hardware. We illustrate new Isar features, such as the integration of the sstate cache. Furthermore, we give an outlook on enhancing your system with Secure Boot and Over-the-Air (OTA) firmware updates with swupdate, using the Isar layer from the LF Civil Infrastructure Platform project.
Clara Kowalsky is working as a consultant software engineer in the Linux Expert Center at Siemens AG. She contributes to multiple inner-source and open-source projects, especially in the area of real-time (e.g., Xenomai) and embedded Linux tooling. She gives internal trainings on... Read More →
Having a strong background in High Performance Computing, Felix is currently focusing on embedded Linux platforms for realtime applications. Hereby, he works across country and company boundaries to unify patterns that are recurring and mandatory for embedded products (like secure... Read More →
Wednesday August 27, 2025 14:10 - 14:50 CEST Elicium 2
The Ethernet real-time evolution, partly driven by TSN standards, may represent an important step for building an open ecosystem for fieldbus communication. With more TSN capable hardware supported by Free and Open Source Software, this ecosystem seems to be almost complete – but still not very much in use. One reason may be the lack of support and the complexity of choosing and configuring the software. This presentation addresses this gap and presents a guide of how to set up real-time Ethernet communication on a Linux system. It includes a list of software components, configuration details of the network devices, routing of critical traffic and timely processing by the Linux kernel.
Director, Open Source Automation Development Lab (OSADL) eG
Jan Altenberg has more than 20 years of experience in developing and maintaining Embedded Linux systems. Since October 2021 Jan works as Senior Open Source Consultant and Embedded Systems Integrator at the Open Source Automation Development Lab (OSADL) eG and since 2024, he also serves... Read More →
Wednesday August 27, 2025 15:05 - 15:45 CEST Elicium 2
The growing complexity of modern embedded systems requires innovative approaches to make hardware more flexible and efficient to use. A concept for the software-controlled emulation of interfaces using technologies like Bit-banging, NXPs FlexIO or similar will be presented. The presented approach utilizes the integrated coprocessor of a heterogeneous SoC to achieve maximum efficiency and fulfil the corresponding real-time requirements.
With Zephyr RTOS and OpenAMP, seamless inter-processor communication is realized, allowing easy and modular integration into Linux. The prototype developed shows how software-defined approaches can improve flexibility of hardware adaptation in embedded systems.
Peter Fecher just finished his bachelors degree in Computer Engineering. He has been working at PHYTEC for 3 years now, specialising on microcontrollers and IoT systems.
Wednesday August 27, 2025 16:20 - 17:00 CEST Elicium 2
