I want to add some functionality to gr_uhd_usrp_sink to change frontend
gain and tune the DDC. I've achieved part of this in the past by
modifying the files directly in gnuradio/gr-uhd, but that's an imprecise
way to do it. Would you recommend I:
1) copy the code from the gnuradio tree to my out-of-tree module, change
namespaces, etc. and add my functionality?
2) create my own private uhd_usrp_sink_impl that extends gnuradio's
uhd_usrp_sink and add my functionality there?
3) something else?
I remember reading something on this list from somebody who rolled their
own usrp wrapper. Any hints?
Thanks,
Sean
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