Re: [Discuss-gnuradio] USRP/USB, problems connecting

[Eric Blossom]

On Tue, Jan 22, 2008 at 03:27:39PM +0100, Martin Braun wrote:
> I'm having problems connecting my USRP to my computer (running Open-Suse
> with a  2.6.22.13-0.3-default kernel). I know the USRP works, I've tried
> it with another machine (using the same gnuradio-version), and the admin
> claims he hasn't fiddled with the computer concerned. This is what I get
> (as root or as user, using rx or tx):

I suspect you're using a USB 1.1 controller.  We require a 2.0 controller.

  "high speed > full speed"  

lsmod should show an ehci driver loaded.

Eric



> >>> from gnuradio import usrp
> >>> src = usrp.sink_s()
> usrp_open_interface:usb_claim_interface: failed interface 1
> could not claim interface 1: No such file or directory
> usrp_basic_tx: can't open tx interface
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File "/usr/local/lib/python2.5/site-packages/gnuradio/usrp.py", line
> 230, in __init__
>     fpga_filename, firmware_filename)
>   File "/usr/local/lib/python2.5/site-packages/gnuradio/usrp1.py", line
> 946, in sink_s
>     return _usrp1.sink_s(*args)
> RuntimeError: can't open usrp1
> 
> The USRP is connected alright, otherwise the error message would look a
> bit different. ls -lR /dev/bus/usb returns [excerpt]:
> 
> /dev/bus/usb/001:
> insgesamt 0
> crw-r--r-- 1 root root 189,  0 21. Jan 15:32 001
> crw-rw---- 1 root usrp 189, 10 22. Jan 15:08 011
> 
> There it is. I uninstalled and remake'd and re-installed GNU radio from
> the 3.1 branch (out of SVN), that didn't help. dmesg seems OK, too:
> 
> usb 1-1: new full speed USB device using uhci_hcd and address 12
> usb 1-1: new device found, idVendor=fffe, idProduct=0002
> usb 1-1: new device strings: Mfr=1, Product=2, SerialNumber=0
> usb 1-1: Product: USRP Rev 4
> usb 1-1: Manufacturer: Free Software Folks
> usb 1-1: configuration #1 chosen from 1 choice
> 
> 
> Could someone please give me direction where else I can look? I've seen
> this problem crop up in the archives, but I couldn't find a solution.
> 
> Thanks,
> Martin