This talk explores the journey of implementing and upstreaming USB-MIDI support in Zephyr RTOS, starting from a custom music controller project. We'll first look at the MIDI (Musical Instrument Digital Interface) specification from the 1980's and how it evolved into MIDI2 recently. We will then dive into practical consideration for actually exchanging MIDI data with a USB host. We will look deeper into Zephyr's USB device_next stack; the newer, more dynamic way of implementing actual USB devices using this fancy kite-stamped RTOS. If you are not familiar with it, this is also an occasion to have a glimpse at the device model and how Zephyr applications and drivers are structured.
Everyone is welcome to attend, and questions are warmly encouraged. You don't need to register, just join us online on 08-05-2025 12:00 CET
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This talk explores the journey of implementing and upstreaming USB-MIDI support in Zephyr RTOS, starting from a custom music controller project. We'll first look at the MIDI (Musical Instrument Digital Interface) specification from the 1980's and how it evolved into MIDI2 recently. We will then dive into practical consideration for actually exchanging MIDI data with a USB host. We will look deeper into Zephyr's USB device_next stack; the newer, more dynamic way of implementing actual USB devices using this fancy kite-stamped RTOS. If you are not familiar with it, this is also an occasion to have a glimpse at the device model and how Zephyr applications and drivers are structured.
Fleetminder is a device fleet simulator and modeling system. It implements a user-friendly dashboard that monitors, controls and manages a fleet of simulated, real or live devices in the field. Fleetminder is in the early stages of development and is designed to support commercial projects by exploring use cases such as: (1) OTA device updates and secure boot, (2) OT-IT network gateways, (3) Scale-up scenarios in fleet management, (4) Multi-tenancy and multi-partner data systems. This presentation covers the architecture, the current state of development, the workflows employed for implementation and testing, and future directions.
The Linux kernel is constantly evolving, with 5 or 6 stable releases per year. Each release brings new functionality and adds support for new hardware. This talk will cover some of the changes in 2024 and 2025 that are particularly useful for embedded systems development.
Each year, thousands of developers of free and open source software from all over the world gather at the FOSDEM event in Brussels. This year, this busy and organic conference hosted 79 tracks with 1143 speakers and 1088 events. Our Mind colleagues, Arnout, Frederik, Hugo, Raphaël and others, attended the FOSDEM conference and present a summary of some of the presentations during this free format Mind Tech Talk. Everyone is welcome to attend and questions are warmly welcome.
System design can be a process to explore better possibilities, FPGA is one flexible possibility to embedded system design. This presentation uses a traffic offloading example to illustrate why FPGA is a possibility worth trying; explains the junction of FPGA and Linux development work flow using Zynq-7000 as the target hardware. It shows a naive but real example to illustrate the meaning of (better or worse) possibility. Finally, it skims through some novel trending in the Linux and FPGA area.
Charles-Antoine and Olivier have attended the small and cosy Kernel Recipes conference in Paris of which Mind is a sponsor. They will explain what important people involved in Linux kernel project (Steven Rostedt, Greg Kroah-Hartman, Julia Lawall, Hans de Goede) are doing, which are the trends, the challenges and the hot topics in kernel development. During these 3 days, the main subjects were security, Rust, performance and real time!
The majority of contributions to the OSS (open source software) community are made by practitioners acting on behalf of their own initiative, their company, or any other organisation.
All the Mind ‘wisdom’ is translating into various contributions from our experts.
Below an overview of OSS presentations, Linux kernel and Zephyr contributions, Buildroot enhancements, etc.
Raphaël Mélotte documented “config hostrecord” for OpenWRT.
Javad Rahamipetroudi added a new flash for Blackpill in Zephyr.
Thomas Perale has contributed PURL support to Buildroot, see 1, 2, 3, 4, 5, 6, 7, 8, 9.
Thomas Perale was very active in Buildroot too, see 1, 2, 3, 4, 5, 6, 7, 8, 9, plus a lot of cherry-picked commits for branch 2025.02.x, 2024.11.x and 2024.02.x.
Raphaël Mélotte was very active in Buildroot, see 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16.
Colin Evrard has bumped a libmodsecurity version in Buildroot, helping Frank Vanbever and making his first Buildroot contribution.
Laurens Miers has fixed a bug in PyOCD.
Olivier L’Heureux made a typo fix in the U-Boot documentation.
Ben Hutchings gave a talk about new Linux kernel features that Debian should use.
Javad Rahamipetroudi added board support for BluePill in Zephyr.