/usr/ is in libenginio1-dev 5.3.2-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/libenginio1-dev/
/usr/share/doc/libenginio1-dev/copyright
/usr/share/doc/libenginio1-dev/changelog.Debian.gz
/usr/include/
/usr/include/x86_64-linux-gnu/
/usr/include/x86_64-linux-gnu/qt5/
/usr/include/x86_64-linux-gnu/qt5/Enginio/
/usr/include/x86_64-linux-gnu/qt5/Enginio/enginioversion.h
/usr/include/x86_64-linux-gnu/qt5/Enginio/enginio.h
/usr/include/x86_64-linux-gnu/qt5/Enginio/enginioclient_global.h
/usr/include/x86_64-linux-gnu/qt5/Enginio/EnginioDepends
/usr/include/x86_64-linux-gnu/qt5/Enginio/Enginio
/usr/include/x86_64-linux-gnu/qt5/Enginio/enginioreply.h
/usr/include/x86_64-linux-gnu/qt5/Enginio/enginioclientconnection.h
/usr/include/x86_64-linux-gnu/qt5/Enginio/1.0.6/
/usr/include/x86_64-linux-gnu/qt5/Enginio/1.0.6/Enginio/
/usr/include/x86_64-linux-gnu/qt5/Enginio/enginioreplystate.h
/usr/include/x86_64-linux-gnu/qt5/Enginio/enginiobasemodel.h
/usr/include/x86_64-linux-gnu/qt5/Enginio/enginiomodel.h
/usr/include/x86_64-linux-gnu/qt5/Enginio/enginiooauth2authentication.h
/usr/include/x86_64-linux-gnu/qt5/Enginio/enginioclient.h
/usr/include/x86_64-linux-gnu/qt5/Enginio/enginioidentity.h
/usr/include/x86_64-linux-gnu/qt5/Enginio/EnginioVersion
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/Enginio.pc
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/Qt5Enginio/
/usr/lib/x86_64-linux-gnu/cmake/Qt5Enginio/Qt5EnginioConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/Qt5Enginio/Qt5EnginioConfig.cmake
/usr/lib/x86_64-linux-gnu/qt5/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/qt_lib_enginio.pri
/usr/lib/x86_64-linux-gnu/libEnginio.prl
/usr/lib/x86_64-linux-gnu/libEnginio.so