RCP not working over USB (IDFGH-14806)

[MiguelCan13]

Answers checklist.

• I have read the documentation ESP-IDF Programming Guide and the issue is not addressed there.
• I have updated my IDF branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

IDF version.

v5.4

Operating System used.

Windows

How did you build your project?

ESP-IDF CLI

If you are using Windows, please specify command line type.

Ubuntu

What is the expected behavior?

I have a pi 3 acting as a thread border router with a nordic RCP functioning successfully. However, when I use the RCP example provided by esp-idf, it is unable to function with the rpi3. On the other hand, the RPI has issues writing to the RCP as the USB JTAG is preventing us from writing to the esp from the host PC.

Are there any available configurations to enable spinel over the USB lines? or even the USB-to-UART? I am having issues with that as well.

When I try to enable USB-CDC it does not let me, I presume this is because "minimal" build is on. However, the project does not successfully build when minimal build is off.

I have tried various other configurations in menu config to try and enable this however it is still to no avail. Any solutions would be greatly appreciated!

[nichonaugle]

I have tried to replicate this and have the same issue. The application doesn't seem to allow communication over the USB or USB-to-UART lines from the host machine... @MiguelCan13