Can't find shared library libusb

[Emiliano Pastorino]

>
> What about "find_library('usb-1.0')"?


Yes! That did the job.

Thanks everyone. Now my Lego Mindstorms NXT2.0 works connected to the XO :)

On Mon, Oct 18, 2010 at 5:55 AM, Tomeu Vizoso <tomeu at sugarlabs.org> wrote:

> On Fri, Oct 15, 2010 at 21:24, Emiliano Pastorino
> <epastorino at plan.ceibal.edu.uy> wrote:
> > Hi everyone,
> >
> > I'm trying to use libusb, but I'm getting this behaviour in python:
> >
> >>> from ctypes.util import find_library
> >>> find_library('usb')
> >>>
> > (returned None)
>
> What about "find_library('usb-1.0')"?
>
> It's probably good that you need to specify the version in this case
> because the API between 0.1 and 1.0 is likely to have changed. This is
> because there's no libusb.so symlink.
>
> Regards,
>
> Tomeu
>
> > The strange thing is that in another XO, same build (802), it does find
> the
> > library:
> >>> from ctypes.util import find_library
> >>> find_library('usb')
> >>> 'libusb-0.1-so.4'
> > Both XO have this file in /usr/lib, but the first one won't find it.
> > Nevertheless, it finds other libraries under /usr/lib.
> >
> > I've checked /etc/ld.so.conf and it's the same for both XO.
> > I'm using the same version of libusb and libusb-devel, and they were
> > installed with yum.
> > Any tips?
> > _______________________________________________
> > Devel mailing list
> > Devel at lists.laptop.org
> > http://lists.laptop.org/listinfo/devel
> >
> >
>



-- 
Ing. Emiliano Pastorino
Plan Ceibal
Av. Italia 6201 CP: 11500, Montevideo, Uruguay
Tel: (598) 2 601 5773 int.: 2232
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