Serial can't find my devices

[mgrouch]

you should check if the user pi is in the dialout group:

Code:

groups pi

Pi is in the dialout group already 

Code:

pi@openplotter:~ $ groups pi

pi : pi adm dialout cdrom sudo audio video plugdev games users input render netdev spi i2c gpio lpadmin

two more things to try:

Shutdown pypilot and try lsusb as user pi

Add pi user to tty group

---

There is this bug report

https://github.com/raspberrypi/linux/issues/3779

What do you have in udev?

Code:

ls -l /etc/udev/rules.d/

---

And another bug report against debian package

https://bugs.debian.org/cgi-bin/bugrepor...ug=1009654