/usr/ is in libsoapysdr-dev 0.6.1-2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/SoapySDR/
/usr/include/SoapySDR/Config.h
/usr/include/SoapySDR/Config.hpp
/usr/include/SoapySDR/Constants.h
/usr/include/SoapySDR/Device.h
/usr/include/SoapySDR/Device.hpp
/usr/include/SoapySDR/Errors.h
/usr/include/SoapySDR/Errors.hpp
/usr/include/SoapySDR/Formats.h
/usr/include/SoapySDR/Formats.hpp
/usr/include/SoapySDR/Logger.h
/usr/include/SoapySDR/Logger.hpp
/usr/include/SoapySDR/Modules.h
/usr/include/SoapySDR/Modules.hpp
/usr/include/SoapySDR/Registry.hpp
/usr/include/SoapySDR/Time.h
/usr/include/SoapySDR/Time.hpp
/usr/include/SoapySDR/Types.h
/usr/include/SoapySDR/Types.hpp
/usr/include/SoapySDR/Version.h
/usr/include/SoapySDR/Version.hpp
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/SoapySDR.pc
/usr/share/
/usr/share/cmake/
/usr/share/cmake/SoapySDR/
/usr/share/cmake/SoapySDR/SoapySDRConfig.cmake
/usr/share/cmake/SoapySDR/SoapySDRConfigVersion.cmake
/usr/share/cmake/SoapySDR/SoapySDRUtil.cmake
/usr/share/doc/
/usr/share/doc/libsoapysdr-dev/
/usr/share/doc/libsoapysdr-dev/copyright
/usr/lib/x86_64-linux-gnu/libSoapySDR.so
/usr/share/doc/libsoapysdr-dev/changelog.Debian.gz