"The serial device 'MPU Serial (/dev/ttyUSB0)' is not available"

[Mario Luzeiro]

I'm on Linux debugging STM32MP1, latest version of everything installed. I used to be able to debug in "production mode" but now I got:

"The serial device 'MPU Serial (/dev/ttyUSB0)' is not available."

if I start debug

"The selected serial device 'MPU Serial (/dev/ttyUSB0)' is not available anymore, please update the Debug configuration."

However, I'm able to open the /dev/ttyUSB0 with other terminal softtware, the "/dev/ttyUSB0" appears as an option on debug options, also, the status on bottom right is green.

How to fix this?

[AlexNiko]

Yes, I can confirm that none of precompiled images and locally built versions of Yocto Linux by Digi for MP1 Dev Kit the RemoteProc and rpmsg are not working because of missing parameters in device tree configuration.

I was able to fix that and remoteproc0 is now present in /sys/class/remoteproc/ folder.

That is not the reason, since I'm having exactly same problem and CubeIDE shows No ST-Link detected message to me when remoteproc0 is present and active.