On Thu, Mar 19, 2009 at 03:49:14PM -0400, Dan wrote:
> 2009/3/16 Philip Balister phi...@balister.org
> 
> >
> > >So maybe there is a way to code libusrp to use the libusb1 interface
> > without >directly accessing the file descriptor.
> >
> > >The other approach is to try to extract the file descriptor from
> > libusb-compat.
> >
> > >Finally, it looks like you can omit libusb-compat and install libusb-0.1.x
> > with >libusb1.
> >
> > >Philip
> >
> 
> Hi, we are also coming across the same error of usrp_prims.cc: 244: internal
> error!  when we try to interface with the USRP using the Angstrom
> distribution of Linux.  We were able to get GNU Radio 3.1.3 running on a
> Gumstix OMAP3 board using the audio scripts (dial_tone.py, etc.) but get the
> error when running usrp_benchmark_usb.py.
> 
> Philip mentioned in a previous post that Angstrom can be built with
> libusb-1.12 as a workaround so we can look into some sort of kernel hacking
> as well.  But if there were a better approach than this it would be useful.

No kernel hacking is required.  libusb-* is a user space library.

> Anyway, please let us know if there is an effective way to connect to the
> USRP with Angstrom (or other OS).  Right now we are just trying to establish
> a connection and can look into improving performance later.

Try installing libusb-0.12

Eric


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