[Elecraft] KUSB on Linux machine??

[Brendan Minish]

On Sat, 2008-06-14 at 11:14 +0100, David Woolley (E.L) wrote:

> > Brendan, this was way too simple!  I found that I had to execute k3util 
> > as root, otherwise it wouldn't open the ttyUSB0 port.
> 
> I cannot think of any good reason why this would be necessary, and as a 
> matter of policy one should reject software that shouldn't need to run 
> as root, but does actually need to.  I think it is more likely that the 
> ttyUSB0 device node needs its permissions changing or accommodating to. 

On Centos / RHEL /Fedora 
Adding your user to the uucp group will give you access to the serial
ports.

to give your normal user access to the serial ports do the following as
root
 
usermod -a -G uucp <username>

you can also do this with the GUI tool 
system-config-users

this adds your normal user to the uucp group and gives your user access
to the serial ports so that you can run com port applications as a user
instead of root 

you may need to log your user out and back in again for this to take
effect.   


> PS Note that Centos is a derivative, not a variant of Red Hat; Red Hat 
> would deny any responsibility for it.  

Having recently completed some redhat training this is true, however the
redhat people work pretty closely with centos these days and Centos is
not seen as a rival.
Centos is based on the redhat Enterprise linux source code tree that
Redhat publish under the terms of the GPL. 
Centos aims to be binary compatible with Redhat Enterprise linux  

> Red Hat commercialise open source 
> software by branding it and then charging for the use of the brand and 
> for support. 

Redhat operate within the parameters of the GPL licence and contribute a
lot of paid for development resources to the linux codebase.
They sell a commercially supported product, it is the support, the
compiled binaries, Indemnity from litigation (SCO, MS etc) and branding
that you are buying, not 'linux'  

>  CentOs remove the Red Hat branding and bypasses the 
> support contract that encumbers commercially supplied copies of Red Hat 
> Linux.

This is Something that the Centos people are perfectly entitled to do
under the terms of the GPL. You are are also able if you so wish to
download the entire RHEL source tree and rebuild your own binary
compatible version 

73
Brendan EI6IZ 
RHCE 85008029731335

-- 
Don‘t complain. Nobody will understand. Or care. And certainly don‘t try
to fix the situation yourself. It‘s dangerous. Leave it to a highly
untrained, unqualified, expendable professional.