Interfacing (DSI, CSI, I2C, etc.) • Re: serial comms over usbc onthego connection

Yes but you might not get enough power from the USB host to run everything that's connected to the Pi.

The quick and dirty version:

1. Add the following to the end of config.txt:

   Code:

   dtoverlay=dwc2,dr_mode=peripheral

2. Add the following to the end of cmdline.txt:

   Code:

    modules-load=dwc2,g_serial

3. Reboot

You'll now have a /dev/ttyGS0 on the PI. The USB host will have a serial port but what it's called is OS dependent. Treat as you would any other serial port.

Statistics: Posted by thagrol — Mon May 18, 2026 11:30 pm

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