Re: [Ubertooth-general] PyUSB problems

[Jordan J. R. <jj...@co...>]

On Thu, May 26, 2011 at 8:40 PM, Jordan J. Riggs <jj...@co...> wrote:
> All,
>
> Not sure what changed, but for some reason I can't run any of the
> Python specan tools.
>
> jjriggs@tomcat:~/ubertooth/trunk/host/specan_ui$ python specan.py
> Traceback (most recent call last):
>  File "specan.py", line 70, in <module>
>    for frame in frame_source:
>  File "specan.py", line 41, in specan
>    self._cmd_specan(low_frequency, high_frequency)
>  File "specan.py", line 36, in _cmd_specan
>    self._device.ctrl_transfer(0x40, 27, low_frequency, high_frequency)
>  File "/usr/local/lib/python2.7/dist-packages/usb/core.py", line 678,
> in ctrl_transfer
>    self.__get_timeout(timeout)
>  File "/usr/local/lib/python2.7/dist-packages/usb/_debug.py", line
> 52, in do_trace
>    return f(*args, **named_args)
>  File "/usr/local/lib/python2.7/dist-packages/usb/backend/libusb10.py",
> line 548, in ctrl_transfer
>    timeout))
>  File "/usr/local/lib/python2.7/dist-packages/usb/backend/libusb10.py",
> line 357, in _check
>    raise USBError(_str_error[retval.value])
> usb.core.USBError: Pipe error

Does anyone have any wisdom on this? I tried reinstalling PyUSB, but
to no avail. Inexplicably, specan_ui.py works, but no other python
tools work. Until I get this figured out, I'm sunk.

Thanks,
Jordan