Re: [Discuss-gnuradio] GPS on USRP

[Don Ward]

Phaysal Khan wrote:

> I used usrp_fft, and I can see a CW at 1575.42MHz, so it means that it is 
> in the
> working condition, although I still get the same error msg once everytime 
> i run
> anything. It says
> $python usrp_fft.py -f 1.57542G
> usb_contro_msg failed: usb_control_msg: sending control message failed, 
> win
> error: A device attached to the system is not functioning.

Under Windows (both Cygwin and MinGW) I get this message every time I start 
a GNU Radio application that uses the USRP.  I haven't been able to figure 
out why, but it doesn't seem to affect the operation of the USRP or GNU 
Radio.

-- Don W.