Help to get control over USRP from custom block

Hi all,

A last attempt this time, after struggling already several months with
this subject…

From within my custom (out-of-tree) C++ block I need full control over
USRP sink/source. According to the documentation, the command interface
only implements three functions (gain, center frequency and LO_offset ).
I need much more functionality however (sensors, IQ-imbalance, etc…),
so I looked at another solution.

In my custom block class I added a method that takes 2 pointers:


In the Python code I add a call to this method in order to
pass the USRP pointers from Python to my C++ custom block.

The pointers seem to be valid in C++, but apparently the corresponding
classes have empty virtual methods, so if I want to use the pointers
nothing happens or Python crashes.

Does anybody know how to get pointers that have all functionality
implemented from the original Ettus library? I am completely stuck… It
may be an ugly hack, but I just need to get things done now.



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