[Xastir] Serial Interfaces will not start

Joe S. Borovetz wa5vms at tapr.org
Wed Feb 22 09:03:26 PST 2017


On 2/22/2017 9:30 AM, Curt, WE7U wrote:

I will check that...I am using a Rocketport 4 port  card so they are 
/dev/ttyR0 thru R3 and I have verified that they are all working.

Joe


> On Tue, 21 Feb 2017, Joe S. Borovetz wrote:
>
>> I have verified that the TNC is active on the serial port by using 
>> Minicom.
>
> Note that Minicom has special privileges assigned to the binary on 
> some installs. Even if it doesn't it's probably set to the correct 
> group for access to your serial port. Check the permissions on your 
> serial port or your USB->Serial adapter:
>
>   $ ls -l /dev/ttyS0
>   crw-rw----   1 root   dialout   4,  64 Feb 14 09:12 ttyS0
>
> So my serial port is read/writable by the dialout group (the second 
> set of "rw" applies to the group). I don't have a USB->Serial cable 
> plugged in right now, but I think that usually comes in as "/dev/USB0" 
> or similar. You can look at that device as well with "ls -l". Try "ls 
> -l USB*".
>
> After you figure out which group the ports are in, use your admin 
> tools to add your login to that group, or edit /etc/group directly and 
> add your name to the end of that line. Here's a typical entry in 
> /etc/group:
>
>   dialout:x:16:username
>
> Change "username" to your login. Then log out and back in again (no 
> need to reboot) and you should gain the "dialout" group privileges.
>



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