7-9 October, 2026 Prague, Czechia View More Details & Registration Important Note:Timing of sessions and room locations are subject to change.
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Zephyr's new USB support has been in development for some time. It consists of USB device and USB host support. The new device support has been the default for the last two releases. Work on the device part also introduced initial support for the host stack at that time. This was primarily necessary to enable USB/IP support on the native_sim board.
Johann will start with a brief overview of the current status of USB support.
Johann will then present information on virtual device/host controllers and the virtual bus. These are not actually platform-dependent, but they are most often used with native_sim. Furthermore, he will explain how virtual device/host controllers make it possible to build USB applications for native_sim and then export them to a Linux client using USB/IP server support.
Johan will demonstrate that the main benefit of virtual device/host support and native_sim is the ability to test hardware-independent USB code in CI, even on a pull request basis. For example, we can test the behavior of the host/device stack in response to invalid or undefined requests.
Johann will either provide a few examples or point to the samples and specific tests in the repository.
I am research and development engineer for NORDIC SEMICONDUCTOR ASA. Zephyr contributor since 2016, right after ELCE 2016 in Berlin. One of my main tasks is the maintaining of USB support in Zephyr.
