Re: [pyusb-users] NotImplementedError when using pyusb

[chris c. <cl...@gm...>]

Ah! Windows (didn't notice that at first), it isn't implemented (and isn't
possible). I posted a similar question a while back. The response
I received is worth reading.

Chris


On Thu, May 17, 2012 at 2:00 PM, greg yurikov <gyu...@ya...> wrote:

> I'm using the libusb1.2.4.9 win32 backend I think. I downloaded the .zip
> file found here:
>
> https://sourceforge.net/projects/libusb-win32/files/libusb-win32-snapshots/20110713/
>
>
> In the zip were the following files:
> libusb-win32-devel-filter-1.2.4.9.exe
> libusb-win32-src-1.2.4.9.zip
> libusb-win32-bin-1.2.4.9.zip
> libusb-win32-debug-1.2.4.9.zip
>
> I did nothing more than run the exe. I feel like I'm missing a step here.
>
>
>   ------------------------------
> *From:* chris clark <cl...@gm...>
> *To:* greg yurikov <gyu...@ya...>; pyu...@li...
> *Sent:* Thursday, May 17, 2012 1:07 PM
> *Subject:* Re: [pyusb-users] NotImplementedError when using pyusb
>
>
>
> On Thu, May 17, 2012 at 11:40 AM, greg yurikov <gyu...@ya...> wrote:
>
> ....
>
> I get this error:
>
>   File "test.py", line 20, in <module>
>     if device.is_kernel_driver_active(0):
>   File "C:\Python26\lib\site-packages\usb\core.py", line 704, in
> is_kernel_driver_active
>     return self._ctx.backend.is_kernel_driver_active(self._ctx.handle,
> interface)
>   File "C:\Python26\lib\site-packages\usb\backend\__init__.py", line 355,
> in is_kernel_driver_active
>     _not_implemented(self.is_kernel_driver_active)
>   File "C:\Python26\lib\site-packages\usb\backend\__init__.py", line 79,
> in _not_implemented
>     raise NotImplementedError(func.__name__)
> NotImplementedError: is_kernel_driver_active
>
> Am I suppose to implement this on my own? Can I just redirect this to
> another python module that actually implements this?
>
>
>
> It looks like the generic device code is being fired, not the
> backend implemention code.
>
> Which backend is being used?
>
>
>