2010/7/15 Chris Wolf <cw10...@gmail.com>:
>
>
> On 7/15/10 6:13 AM, Wander Lairson wrote:
>> 2010/7/15 Chris Wolf <cw10...@gmail.com>:
>>>
>>>
>>> On 7/12/10 9:49 AM, Wander Lairson wrote:
>>>> Yes, I haven't started OpenUSB, I just "typed" the code but never
>>>> tested it. I will apply your fix so at least we can enumerate devices
>>>> using OpenUSB. Thanks a lot.
>>>>
>>>
>>> Sure, thank *you*. So shall I assume that the libusb10 backend is the best
>>> supported backend for now?
>>
>> Either libusb10 or libusb01 backends are in the same maturity level at
>> this moment.
>
> Ok, but in core.py, the search order seems to put OpenUSB ahead of libusb01,
> such that if a particular machine has all three libraries, it will go to
> openusb, which you say, whose backend wrapper is not quite ready yet.
Well, my initially thought is that libusb 0.1 will be a legacy library
and OpenUSB will
continue be developed and eventually become a "better" library, in
long term. Because of
that I put the search criteria in this order. And because for one
reason or other, I give
the user the chance to force use one backend or another.
>
> Would it not be better to change the search order to put OpenUSB at the end?
> (for now)
While OpenUSB backend isn't implemented, it may be a good idea cutting
it off from backend list for next alpha release.
>
> if backend is None:
> import usb.backend.libusb10 as libusb10
> import usb.backend.libusb01 as libusb01
> import usb.backend.openusb as openusb
>
> for m in (libusb10, openusb, libusb01):
> backend = m.get_backend()
> if backend is not None:
> _logger.info('find(): using backend "%s"', m.__name__)
> break
>
>
> Regards,
>
> Chris Wolf
>
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--
Best Regards,
Wander Lairson Costa
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