[Xastir] Re Soundmodem

[Murry]

It's beyond me.



Curt, WE7U wrote:
> On Thu, 18 Jun 2009, Murry wrote:
>
>> It means that I had done the  "chmod" as was given in the instructions
>
> Rgr.  And the executable was owned by root before you did the
> "chmod" (and after of course)?
>
> The "chmod 4755" command, when run against an executable or script
> owned by root, allows that executable or script to run as the root
> user.  This allows regular users to run something that needs root
> privileges to do special things, like open a networking port.
>
> The type of error you reported can mean:
> 1) You don't have the correct privileges, or
> 2) The port doesn't exist that you're trying to mess with.
>
> If #1 and it's a serial port, you should be able to add your user to
> the group that owns the port and make sure the port is group R/W.
> If it's an AX.25 port, you need to make Xastir owned by root and run
> "chmod 4755" against it.
>
> If #2, make sure the port actually exists as spelled out in your
> Interface->Properties dialog, that the path is correct, that you
> didn't substitute O's for 0's, etc.
>
> Sometimes UDEV can do interesting things, particularly with
> USB->Serial adapters.  I sometimes have to switch betwen /dev/USB0
> and /dev/USB1 for the same cable.  Also some USB->Serial adapters
> are crap and won't work properly due to buffering issues and/or
> handshaking issues.  I realize since you're messing with Soundmodem
> that's probably not a USB thing, but there are USB soundcards as
> well, some with built-in radio interfaces like the USB SignalLink
> cable.
>