[drats_users] using D-RATS with USB to serial adapter

[mike c]

hello,

thanks for the help.

On Sun, Nov 21, 2010 at 9:57 PM, Mike Heitmann <n0so at att.net> wrote:

> On Sun, 2010-11-21 at 19:42 -0500, mike wrote:
> > Hello,
> >
> > I have been trying to run D-RATS on Linux (Fedora 12) using a USB to
> > serial adapter.
> >
> > Software will not allow me to add a serial port in order ro connect to
> > my ICOM ID-880H. Computer creates ttyUSB0 and it is a valid option when
> > i bring up the port window but the software will not add it to the
> > settings when i click on save.
> >
> > connecting a TNC to the USB to serial adapter works so the problem isn't
> > the adapter.
> >
> > Windows version of D-RATS with the adapter works as well.
>
> Hi Mike,
>
> I've seen this before, it's probably a file permissions problem  with
> the serial ports files in /dev/*. Check the log files for error messages
> associated with attempting to access the serial port in question (dmesg
> | grep tty should do the trick).
>
> Try using the port while running D-RATS as root. If that works, it's a
> permissions problem.
>
>
*Tried running as root, still didn't work. Logged back on as root, still no
luck.*


Also try entering: ls -l /dev/tty*
> That will show who "owns" the serial ports (the /dev/ttyS*
> and /dev/ttyUSB* files). On my Fedora 14 system, those files are owned
> by user root:dialout. The dialout group has read/write access to the
> ports, so I added myself to that group. In F11 or 12 it was group tty,
> in another release it was uucp.
>

*Same here, ttyUSB0 was owned by root:dialout. So i added dialout, tty and
uucp to my user name. still no luck.

So i ran a terminal program, selected ttyUSB0 and connected a TNC up to the
cable. It worked just fine. SO i would think the permissions would be set
correctly, right?


Running Fedora 12 here.

* thanks
mike w8vpc

>
> I've had to add my username to additional groups after several upgrades
> to regain access to the SERIAL and/or USB ports. I'm running Fedora 14
> here now, and a quick check using SYSTEM-> Administration->Users and
> Groups shows that I've added myself to the following groups:
> dialout
> tty
> uucp
>
> After adding yourself  to those groups you will need to logout and log
> back in for the change to affect.
>
> Hope this helps!
>
> 73,
> Mike, N0SO
>
>
>
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