It works, but you have to change permission to the groups. Here the full
commands:

sudo adduser MyUser dialout
sudo chmod a+rw  /dev/ttyUSB0

Next boot USB0 retained these permissions:

crw-rw---- 1 root dialout 188, 0 Jul  6 10:29 /dev/ttyUSB0

and so it is possible to run minicom from MyUser.

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https://bugs.launchpad.net/bugs/949597

Title:
  Cannot open /dev/ttyUSB0: Permission denied

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