USB isn't working 🤔

[beriberikix]

The basic test is flashing an ESP32-C3. On a Linux host (mint) using docker, this works:

docker build -t embedded-container .
docker run -it --device /dev/ttyUSB0 embedded-container
cd zephyr
west build -b esp32c3_devkitm samples/hello_world
west flash

But not with podman:

podman build -t embedded-container-podman .
docker run -it --device /dev/ttyUSB0 embedded-container-podman
cd zephyr
west build -b esp32c3_devkitm samples/hello_world
west flash

The error is:

root@563c9f6da5a6:~/zephyr# west flash
-- west flash: rebuilding
ninja: no work to do.
-- west flash: using runner esp32
-- runners.esp32: Flashing esp32 chip on None (921600bps)
esptool.py v4.5
Found 1 serial ports
Serial port /dev/ttyUSB0
/dev/ttyUSB0 failed to connect: Could not open /dev/ttyUSB0, the port doesn't exist

A fatal error occurred: Could not connect to an Espressif device on any of the 1 available serial ports.
FATAL ERROR: command exited with status 2: /usr/bin/python3 /root/modules/hal/espressif/components/esptool_py/esptool/esptool.py --chip auto --baud 921600 --before default_reset --after hard_reset write_flash -u --flash_mode dio --flash_freq 40m --flash_size detect 0x0 /root/zephyr/build/esp-idf/build/bootloader/bootloader.bin 0x8000 /root/zephyr/build/esp-idf/build/partitions_singleapp.bin 0x10000 /root/zephyr/build/zephyr/zephyr.bin

[beriberikix]

The USB device is there too:

root@13386886b893:~# ls -al /dev/tty*
crw-rw-rw- 1 nobody nogroup   5, 0 May 13 10:19 /dev/tty
crw-rw---- 1 nobody nogroup 188, 0 May 13 10:18 /dev/ttyUSB0

[beriberikix]

podman run -it --device /dev/ttyUSB0 --privileged embedded-container-podman made no difference.

[trond-snekvik]

@beriberikix did you ever find a solution to this?

[beriberikix]

Unfortunately not. I started looking into the machine configuration file but moved on to other things when I got frustrated 😬