By the fact that you are asking what libusb version I am using, I assume I
was supposed to install libusb independent of pyusb? I didn't catch that in
the docs...
If so, which libusb do you recommend I install for win32? I looked at
libusb-win32:
http://sourceforge.net/apps/trac/libusb-win32/wiki
and I assume I install the device driver from that?
The usb component I am connecting came with its own driver which appears to
use winusb, so do I need to remove that driver to get libusb to work with
the device? pywinusb didn't find the component so I am assuming winusb is a
dead-end for Python?
-John
On Wed, Jul 14, 2010 at 1:04 PM, Wander Lairson <wander.lair...@gmail.com>wrote:
> 2010/7/14 John Harrison <johnharrison...@gmail.com>:
> > Just installed pyusb-1.0.0-a0 on a WinXP (win32) machine running Python
> > 2.6.5. Here's the output of my simple test:
> >
> > Python 2.6.5 (r265:79096, Mar 19 2010, 21:48:26) [MSC v.1500 32 bit
> (Intel)]
> > on
> > win32
> > Type "help", "copyright", "credits" or "license" for more information.
> >>>> import usb.core
> >>>> import usb.util
> >>>> dev = usb.core.find()
> > Traceback (most recent call last):
> > File "<stdin>", line 1, in <module>
> > File "c:\python26\lib\site-packages\usb\core.py", line 819, in find
> > raise ValueError('No backend available')
> > ValueError: No backend available
> >>>>
>
> What libusb version are you using?
>
> >
> > I'm sure this is a common problem and is already answered on this user
> list
> > but I couldn't find it for Win32 after multiple searches on the list and
> > Google so please don't flame me! :-)
>
> Don't worry, the mailing list is your friend... :-)
>
> >
> >
> > --
> > John
> >
> >
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> >
> >
>
>
>
> --
> Best Regards,
> Wander Lairson Costa
>
>
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--
John
http://alumni.media.mit.edu/~harrison/
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