USB Support in Zephyr OS

on YouTube ↗36m

" summary

Zephyr now ships a reworked UDC API and a new USB device stack that support multiple controller instances, runtime vendor/product ID and configuration changes, and class-to-configuration assignment instead of hardcoded descriptors. Initial USB host work includes a host controller API and a working max3421 SPI driver used for testing. Transfers use a single async container (net_buf) and a common driver layer with one event queue. A USBIP-based workflow for remote host testing is demonstrated.

AI-written summary · about

" chapters (14)

1. 0:00Introduction
2. 0:42Overview
3. 1:27USB Dev Inc
4. 2:26USB Device Controller API
5. 11:37Device Stick
6. 15:13Raw Overview
7. 19:14Device Stack
8. 20:59USB Class API
9. 23:21USB Host Support
10. 24:33Controller API
11. 26:44USB Device Testing
12. 28:52USB IP
13. 31:48USB namespaces
14. 32:40Compliance testing

" related talks

• 45mUSB Support in Zephyr OSJohann Fischer · Embedded IoT Summit @ Open Source Summit Europe 2022
• 40mUSB Device Support in Zephyr RTOS from the Application PerspectiveJohann Fischer · Zephyr Developer Summit 2023
• 40mNew USB Device Class API IntroductionJohann Fischer · Zephyr Developer Summit 2023
• 30mImplementing a Custom USB Device Controller Driver in ZephyrMohammed Billoo · Zephyr Developer Summit 2023
• 38mWriting Your Own Gadget with Zephyr OSAndrei Emeltchenko · Open Source Summit Europe + Embedded Linux Conference Europe 2019
• 40mMIDI2 in the Real World With ZephyrTitouan Christophe · Zephyr Developer Summit 2025
• 38mWriting Your Own Gadget with Zephyr OSAndrei Emeltchenko · Open Source Summit Europe 2019
• 52mCANnectivity: Zephyr-based USB To CAN Adapter FirmwareHenrik Brix Andersen · Zephyr Developer Summit 2025