[Elecraft] KUSB on Linux machine??

Dick Roth KA1OZ raroth7 at comcast.net
Sat Jun 14 10:46:11 EDT 2008


Brendan Minish wrote:
> 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
> 

I love this list!  I got pertinent lessons on the use of unix groups and 
the English language.  Thanks John, Brendan and David.

Now, as others are wont to say:  "Let's end this thread", since I am now 
on the proper path.

Thanks again to all.

ttfn &
-- 
73,
Dick ka1oz
Middleborough, MA

K3/100(Kit) SN 000859
Titan-DX


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