Re: [Ubertooth-general] PyUSB problems

[Jared B. <jb...@ea...>]

On May 30, 2011, at 11:38 PM, Jordan J. Riggs wrote:

> ~~@tomcat:~/ubertooth/trunk/host/usb_dfu$ python usb_dfu.py write
> ~/ubertooth/trunk/firmware/factory_test.bin
> Traceback (most recent call last):
>  File "usb_dfu.py", line 233, in <module>
>    dfu.enter_dfu_mode()
>  File "usb_dfu.py", line 153, in enter_dfu_mode
>    state = dfu.get_state()
>  File "usb_dfu.py", line 131, in get_state
>    state_packed = self._device.ctrl_transfer(0xA1, Request.GETSTATE, 0, 0, 1)
>  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
> 
> Perplexing.
> 
> Jordan

Try grabbing an update from SVN. This looks very much like the same timeout problem as specan_ui.py. I made the same change in usb_dfu.py over the weekend, so give it a try and let me know if it helps.

	- Jared