As title. My app needs to access an USB device (an Arduino one) on /dev/ttyACM0 the user is in the dialout group so it has access to the device but snap continue to not see the device even if my snapcraft.yaml contains those plugs plugs: - serial-port - raw-usb is there a way to fix it or snap can’…

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How to access USB device /dev/ttyACM0?

snap

ogra December 13, 2025, 2:22pm 2

See:

Hotplug support doc

Hotplug support gives snaps the ability to integrate with Linux’s USB hotplugging and Udev device management subsystem. This enables snaps to recognise specific classes of device and create corresponding system slots when a device is connected. Developers wishing to add hotplug functionality to their own interfaces should see Developing hotplug interfaces. Hotplug support is currently under active development, and will become widely available with a future release of snap…

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