I get this traceback:
-- Opening USRP-E on /dev/usrp_e0
Traceback (most recent call last):
File "full_duplex.py", line 60, in <module>
tb = full_duplex()
File "full_duplex.py", line 31, in __init__
num_channels=1,
File "/usr/lib/python2.6/site-packages/gnuradio/uhd/__init__.py", line 74, in constructor_interceptor
return old_constructor(*args, **kwargs)
File "/usr/lib/python2.6/site-packages/gnuradio/uhd/uhd_swig.py", line 2045, in usrp_sink
return _uhd_swig.usrp_sink(*args, **kwargs)
RuntimeError: EnvironmentError: IOError: Failed to open /dev/usrp_e0
This never occurs when using only one source or sink, but occurs with two, independent of the antennas I specify.