Install dependencies:
sudo apt-get install --no-install-recommends git make g++ cmake libsoapysdr-dev libasound2-dev soapysdr-tools python3-soapysdr
Some prototype boards do not have the HAT identification EEPROM written. If you have one of those, write it first by following EEPROM writing instructions.
Compile and install SoapySDR module:
cd SoapySX
mkdir build
cd build
cmake ..
make
sudo make install
sudo ldconfig
Check that the module is found:
SoapySDRUtil --probe=driver=sx
SoapySX provides some support for timestamps which are used by some applications to obtain a known timing relationship between transmitted and received signals. See the linear repeater example for an example on using timestamps to obtain a constant, known latency from received to transmitted signal.