On Mon, Apr 5, 2010 at 9:52 PM, Xiaofan Chen <xiaof...@gmail.com> wrote:
> On Mon, Apr 5, 2010 at 9:22 PM, Wander Lairson <wander.lair...@gmail.com>
> wrote:
>> Maybe it is bug in the libusb01 backend. Please, try one more test
>> when you have some time:
>>
>> import usb.core
>> import usb.backend.libusb01
>>
>> b = usb.backend.libusb01.get_backend()
>> assert b is not None
>> dev = usb.core.find(idVendor=0xFFFE, backend = b)
>> assert dev is not None
>>
>
> You are right. There seems to be a problem with the libusb01
> backend under FreeBSD 8.
>
> [mc...@myfreebsd /usr/home/mcuee]$ python
> Python 2.6.4 (r264:75706, Feb 21 2010, 13:01:16)
> [GCC 4.2.1 20070719 [FreeBSD]] on freebsd8
> Type "help", "copyright", "credits" or "license" for more information.
>>>> import usb.core
>>>> import usb.backend.libusb01
>>>> b = usb.backend.libusb01.get_backend()
>>>> assert b is not None
>>>> dev = usb.core.find(idVendor=0xFFFE,backend=b)
>>>> assert dev is not None
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> AssertionError
>>>> import usb.backend.libusb10
>>>> a = usb.backend.libusb10.get_backend()
>>>> assert a is not None
>>>> dev=usb.core.find(idVendor=0xFFFE,backend=a)
>>>> dev1=usb.core.find(idVendor=0xFFFE,backend=a)
>>>> assert dev1 is not None
>>>> import usb.backend.openusb
>>>> c = usb.backend.openusb.get_backend()
>>>> assert c is not None
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> AssertionError
>>>>
>
Just one more data point. The legacy usbenum.py example
(from 0.4.2) seems to run fine. But I am not sure which
backend it is using.
[mc...@myfreebsd ~/Desktop/build/pyusb/pyusb-0.4.2/samples]$ python usbenum.py
...
Device:
Device class: 0
Device sub class: 0
Device protocol: 0
Max packet size: 64
idVendor: 65534 (0xfffe)
idProduct: 1 (0x0001)
Device Version: 1
Configuration: 1
Total length: 60
selfPowered: 1
remoteWakeup: 0
maxPower: 200
Interface: 0
Alternate Setting: 0
Interface class: 255
Interface sub class: 255
Interface protocol: 255
Endpoint: 0x1
Type: 2
Max packet size: 64
Interval: 32
Endpoint: 0x81
Type: 2
Max packet size: 64
Interval: 32
Endpoint: 0x2
Type: 3
Max packet size: 64
Interval: 32
Endpoint: 0x82
Type: 3
Max packet size: 64
Interval: 32
Endpoint: 0x3
Type: 1
Max packet size: 64
Interval: 32
Endpoint: 0x83
Type: 1
Max packet size: 64
Interval: 32
--
Xiaofan http://mcuee.blogspot.com
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