USB host: any special kernel option(s) needed to detect Gadget devices?

The USB gadget is correctly set up on the CM3 module - if I connect it, over an adapter board, to a Raspi4, the Raspi4, as a USB host, discovers the CM3 gadget and I can communicate over the "usb0" network device. between the two.

This currently does not work when the CM3 is connected to the Buildroot-based machine. That one doesn't detect anything.

While I am reading "everywhere" that, for this to work, it does not depend on host side setup, only on the gadget device being properly set up, I am skeptical in this instance, because this trimmed-to-size Buildroot based Linux image is not your run off the mill Linux that will likely fulfill all usual expectations.

So - does somebody know for sure? Is there anything that might need setting up on the host side with buildroot / kernel options, to make this work?`

is a duplicate

This question has been asked before and has already been answered. It should be marked as a duplicate.

Please enter the URL of the proposed duplicate in the details field below.

not constructive

This question cannot be answered in a way that is helpful to anyone. It's not possible to learn something from possible answers, except for the solution for the specific problem of the asker.

Communities

USB host: any special kernel option(s) needed to detect Gadget devices?

1 comment thread

0 answers