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Re: [Discuss-gnuradio] strange inheritance in gnuradio.. or something wr

From: Eric Blossom
Subject: Re: [Discuss-gnuradio] strange inheritance in gnuradio.. or something wrong with SWIG..
Date: Mon, 14 Sep 2009 15:04:09 -0700
User-agent: Mutt/1.5.18 (2008-05-17)

On Mon, Sep 14, 2009 at 02:35:10PM -0700, tom_unaff wrote:
> Eric, I am also able to run this 2 lines of code.. but problem occures when
> this object is created in one of the benchmark examples (tx or rx).
> Those benchmarks also create usrp objects.
> The error I get when second time such object is created is following:  
> [LOG]
> usrp_open_interface:usb_claim_interface: failed interface 1
> could not claim interface 1: Device or resource busy
> usrp_basic_tx: can't open tx interface
> [/LOG]

You can have a maximum of a single usrp_source and a single usrp_sink open at
the same time.  That is, one of each.  The log message indicates that
you were attempting to open a second usrp_sink


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