Can't find shared library libusb

[Tomeu Vizoso]

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?
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