I'm converting a CPP code from UHD 3.8.5 to the C api for 3.10. (The main reason for the conversion is that I binaries of my CPP programs don't run on both Ubuntu 14 and 16 because of incompatible libboost; hopefully using the C API and the Ubuntu uhd-host package will resolve this).
I have a few questions: 1. Is the following correct, or do I have to "make" the string_vector_handle before I pass it to get_rx_gain_names? The manual says to always make, but my intuition is that get_rx_gain_names will make it for me, given that it gets a pointer to the handle, not the handle itself. uhd_string_vector_handle gain_names; uhd_usrp_get_rx_gain_names(usrp, 0 /* channel */, &gain_names); 2. Is there a C api version of set_rx_gain <https://files.ettus.com/manual/classuhd_1_1usrp_1_1multi__usrp.html#a8234968ad1fefef299ef9541cc193915> (double gain, size_t chan=0)? In the header files I found only set_rx_gain but with a gain_name argument. The CPP api has two overloaded methods, one with a gain-name argument and the other without it. Is the convenience method missing from the C API? Can I invoke it by passing NULL for the gain name? Thanks, Sivan Toledo
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