Re: [Discuss-gnuradio] wbx - usrp_benchmark_usb.py failed at testing 4MB/sec

[Kyle Zhou]

On 11/01/2011 5:20 PM, Howard Wong wrote:
> I get the same problem with this one,
> using ubuntu 10.10,  and a DBSRX, WBX
>
> the single DBSRX works but it fails with the WBX.
>
> Did you follow up the issue?
> Thanks
>
>
>     So far, I have tried another two computers with ubuntu 9.10 fresh
>     installation.
>     but exactly the same problem.
>     Is anyone having the same issue on WBX?
>     Kyle
>
>     Kyle Zhou wrote:
>
>
>         In order to use WBX, I install git repo on my ubuntu 9.04.
>         When I do usrp_benchmark_usb.py, it goes well with 2MB test, but failed 
> at
>         4MB showing device busy error.
>         The output is attached below. I tried other daughter boards (RF2400), no
>         problem. So I guess it is related to the WBX.
>
>
>         Testing 2MB/sec... usb_throughput = 2M
>         ntotal    = 1000000
>         nright    = 999156
>         runlength = 999156
>         delta     = 844
>         OK
>         Testing 4MB/sec... 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
>         Traceback (most recent call last):
>            File "./usrp_benchmark_usb.py", line 106, in<module>
>              main ()
>            File "./usrp_benchmark_usb.py", line 96, in main
>              ok = run_test (rate, verbose)
>            File "./usrp_benchmark_usb.py", line 63, in run_test
>              usrp_tx = usrp.sink_s (0, tx_interp)
>            File 
> "/usr/local/lib/python2.6/dist-packages/gnuradio/usrp/usrp_swig.py",
>         line 2741, in sink_s
>              return _usrp_swig.sink_s(*args, **kwargs)
>         RuntimeError: can't open usrp
It is a bug in the usrp_benchmark_usb.py script. It does not affect the 
real use of the wbx board. No harm at all.