Unable to find USRP#0

GNU Radio
1

Hi

Can anyone please help me? I am using gnuradio3.1.3.
When I try to run usrp_benchmark_usb.py, I get the a RuntimeError:
Unable to find USRP #0.

When I issue

ls -lR /dev/bus/usb | grep usrp,

I didn’t get any message.
This is the first time that I connect USRP board to PC.
Please help me.

Thanks a lot.

Teodora

This is a log:

Testing 2MB/sec… Traceback (most recent call last):
File “./usrp_benchmark_usb.py”, line 106, in
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/python2.5/site-packages/gnuradio/usrp.py”, line
229, in init
_ensure_rev2(which)
File “/usr/local/lib/python2.5/site-packages/gnuradio/usrp.py”, line
85, in _ensure_rev2
v = _look_for_usrp(which)
File “/usr/local/lib/python2.5/site-packages/gnuradio/usrp.py”, line
79, in _look_for_usrp
raise RuntimeError, “Unable to find USRP #%d” % (which,)
RuntimeError: Unable to find USRP #0

2

On Mon, May 18, 2009 at 4:28 AM, Teodora P. [email protected]
wrote:

Can anyone please help me? I am using gnuradio3.1.3.
When I try to run usrp_benchmark_usb.py, I get the a RuntimeError:
Unable to find USRP #0.

When I issue

ls -lR /dev/bus/usb | grep usrp,

I didn’t get any message.

It is likely that you do not have the permissions set correctly to
allow your user account to have access to the USRP hardware. Try
running as root; if everything works, then this is the case.

To allow a non-root user to access the USRP, follow the instructions
here:

http://gnuradio.org/trac/wiki/UdevConfig

Johnathan

3

Thank you Johnatan,
I solved my problem.
Permissions was set correctly, but problem was virtual machine ubuntu,
which didn’t recognize USRP board when it was connected.
Thanks a lot.
Teodora