On Fri, Jan 20, 2012 at 11:50 AM, Xiaofan Chen <[email protected]> wrote:
> On Sat, Jan 21, 2012 at 12:06 AM, Peter Bigot
> <[email protected]> wrote:
>> OK. You haven't said whether the patch causes problems for
>> libusb-compat; I assure you it's necessary for this particular version
>> of legacy libusb-0.1, so if it doesn't break compat I think it should
>> be installed (and if it does, then it's not as "compat" as it should
>> be).
>>
>
> The problem is that I can not test your code snippets since it
> does not work on my Mac OS X Lion (libusb-compat)
> and Ubuntu 11.04 (libusb-0.1 legacy) environment.
>
> The following codes return errors for me.
>
> for d in usb.core.find(find_all=True):
> dev = d._ctx.dev
> print '%s: %u:%u or %s:%u' % (d, d.bus, d.address,
> dev.bus[0].dirname, dev.devnum)
>
> Could you please post your full test codes?
The only thing above that was "import usb". That code does assume
that the backend is libusb01; if the error you're getting is:
AttributeError: '_Device' object has no attribute 'bus'
perhaps you're using libusb10 even if you think you aren't. Try the
following version
import usb
import usb.backend.libusb01
for d in usb.core.find(find_all=True,
backend=usb.backend.libusb01.get_backend()):
dev = d._ctx.dev
print type(dev)
print '%s: %u:%u or %s:%u' % (d, d.bus, d.address,
dev.bus[0].dirname, dev.devnum)
When I do that, it appears the patch is correct even with libusb01 compat.
Peter
>
> --
> Xiaofan
>
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