How to connect/read/write to serial port without root
7,862
This is an answer to my own question.
To solve the problem, I had to remove the modemmanager via:
sudo apt remove modemmanager
After a reboot, minicom
(and putty
) works without root
!
Of course, you also need to be in the dialout
group:
sudo adduser $USER dialout
I found the solution in this Ask Ubuntu answer and this Launchpad bug report.
Related videos on Youtube
Comments
-
Ben over 1 year
As in the title, plus I'm already in group
dialout
via:sudo usermod -a -G dialout ben
(I restarted my PC several times since then...)
I'm using Ubuntu 16.04
File permission of the device-file:
crw-rw---- 1 root dialout 216, 0 Aug 26 22:50 /dev/rfcomm0
when I try to run:
minicom
orputty
(asben
, not asroot
) I got following error:minicom: Error opening the file »/dev/rfcomm0«: The device or ressource is busy
(same with
putty
)But when I do:
sudo minicom
, everything is OK and works well.
(Device seems not to be busy anymore, when using sudo)Question:
How to connect/read/write to serial port withoutroot
? -
kukulo over 4 yearsThis applies to Ubuntu 16.04 as well.