RuntimeError: Unable to find USRP #0

Hi

Can anyone please help me? I am using gnuradio3.1.1. I had no build
problems and it installed fine. When I try to run
usrp_benchmark_usb.py, I get the a RuntimeError: Unable to find USRP
#0. I don’t think that the firmware gets downloaded to the USRP,
since the one light keeps on flashing quite fast. When I issue

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

I get

crw-rw---- 1 root usrp 189, 516 Feb 20 17:59 005.

Thanks a lot.

Sebastiaan

On Wed, Feb 20, 2008 at 06:08:37PM +0200, Sebastiaan H. wrote:

I get

crw-rw---- 1 root usrp 189, 516 Feb 20 17:59 005.

What groups are you a member of?

[eb@dee spu]$ groups
eb sys wheel uucp usrp

You need to be member of usrp.

Easiest way to fix this is to edit /etc/group with your favorite
editor, add yourself to the line that starts with usrp, then log out
and log back in.