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ttyS0 permission denied


I am trying to use the serial port to access a Lantronix mss100 via null modem cable - LL 5.4.

Using gtkterm, when I run the program I get a "permission denied" message.  How do I gain access to the serial port?

*Edit* Solved - I had to add myself as a member of the "dialout" group.  Now it is working.


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