[chirp_users] cannot read from com port

Andrew Errington erringtona at gmail.com
Thu Oct 3 23:01:53 PDT 2013

The typical cause of this problem is that the the com port permissions
are set by the 'dialout' group and the user is not a member of the
'dialout' group.  Check the permissions of the port, and the
membership of the user.

If the user must be added to the 'dialout' group then once you have
done that don't forget to logout and login again as that user, or the
new group membership won't take effect.

It's possible that this is not your problem, but it's very common,
easy to check, and easy to eliminate.  It would be a good place to


On 4 October 2013 12:38, eric oyen <eric.oyen at gmail.com> wrote:
> ok,
> I have chirp installed on a ubuntu 13.04 box. Its operation appears to be a bit inconsistent. Sometimes it will run and display the program frame. other times it just sits there and is invisible to the orca screen reader.
> the second issue is that it can't seem to obtain permissions to read from the com port (which is a prolific device on a USB dongle). I have confirmed that the device is loaded and working properly (I can set up a terminal session between 2 machines with it). However, all attempts (that are visible to me) result in the error "cannot read from device. Permission denied".
> I have tried running it from a terminal session using sudo and it won't even become visible to my screen reader.
> In case you are wondering, I am blind. So, I need a little help here.
> now, I have made sure that my user is administrator on the machine, so there shouldn't be this problem. suggestions?
> -eric
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