[Answered] WROVER and USB ports on Ubuntu

[kolban]

I have a WROVER board and when I connect that to Ubuntu (under Virtual Box under Windows 10), I find that the USB device shows up as FTDI Dual RS232-HS. When I attach this to my Linux environment, I find that I have two entries in /dev:

* /dev/ttyUSB0
* /dev/ttyUSB1

This differs from my previous ESP32 experience where I only found one device appear.

I also seem to be finding that to flash, I need to target /dev/ttyUSB1 and not what I previously used (/dev/ttyUSB0). Fortunately I can flash with an environment variable set:

$ export ESPPORT=/dev/ttyUSB1

My question here is ... is this working as designed?

[ESP_Sprite]

Yes, more or less. From memory, the FT2232H only supports JTAG on the first channel, and we haven't been able to configure the FT2232 in such a way that it hides that first port from the serial driver and still works on all OSses without trying to impersonate another device.