Fedora 6 and USB

After installing the gnuradio on Fedora 6, I wanted to run
test_counting.py (or any program in the gnuradio-examples/python/usrp
directory) but I get the following error:

Usrp_open_interface:usb_claim_interface: failed interface 2

Could not claim interface 2: No such file or directory

( traceback info )

RuntimeError: can’t open usrp1

I’ve added to the PYTHONPATH with
/usr/local/lib/python2.4/site-packages. I plugged in an usb thumbstick
to see if I could use the usb ports and it worked fine. Does anyone have
any guidance?

Thanks!

Randy

Try to run the example as root: sudo python test_counting.py
If the program runs fine, then your user account does not have
permission to access the USRP. Follow this guide:
http://gnuradio.org/trac/wiki/UdevConfig to setup permissions.
-Josh

On Mon, Jan 08, 2007 at 01:41:17PM -0500, Cicale Randy S 2dLt AFRL/VSBXI
wrote:

After installing the gnuradio on Fedora 6, I wanted to run test_counting.py (or any program in the gnuradio-examples/python/usrp directory) but I get the following error:

Usrp_open_interface:usb_claim_interface: failed interface 2

Could not claim interface 2: No such file or directory

This also happens if you’re machine does not support USB 2.0

If you try:

$ /sbin/lsmod | grep ehci
ehci_hcd 31880 0
usbcore 115716 4 usbhid,ehci_hcd,uhci_hcd

Do you see an entry for ehci_hdc? If not, your machine probably
doesn’t support USB 2.0. The USRP requires USB 2.0

Eric

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