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Re: [Discuss-gnuradio] USRP2 printing of character "S" bothersome!!

From: Eric Blossom
Subject: Re: [Discuss-gnuradio] USRP2 printing of character "S" bothersome!!
Date: Thu, 11 Nov 2010 14:47:28 -0800
User-agent: Mutt/1.5.21 (2010-09-15)

On Thu, Nov 11, 2010 at 04:57:56PM -0500, Bishal Thapa wrote:
> Hello,
>   I am using USRP2 version of BBN code to look at AP beacons as seen by the
> USRP2 host. There is lots of "S" printing going on, which keeps me from
> reading AP beacon information from STDOUT (unless I save the output to a
> file, which I prefer not to). Is there anyway to enforce the printing of "S"
> character to go away. Here is my node's specification:
>    - BBN Code Location:
>    https://www.cgran.org/cgran/projects/bbn_80211/branches/usrp2_version
>    - CPU: Intel(R) Core(TM) 2 CPU E8400 @ 3GHz
>    - Memory: 4GB
>    - Hard Disk: 1TB
> My ubuntu version = 10.04
> GNuradio version = 3.3.0
> Thank you in advance for your help.

One of the joys of Free Software is you have the freedom to study how
the program works, and change it to make it do what you wish.  We
provide the source code to enable this freedom.

The "S" is written out on line 454 of usrp2_impl.cc

FWIW, it's written to stderr, not stdout, so you could just shunt
stderr into /dev/null:

  $ my-program 2>/dev/null


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