/usr/share/ada/ is in libpcscada5-dev 0.7.3-1.1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/ada/adainclude/
/usr/share/ada/adainclude/pcscada/
/usr/share/ada/adainclude/pcscada/pcsc-scard-conversion.adb
/usr/share/ada/adainclude/pcscada/pcsc-scard-conversion.ads
/usr/share/ada/adainclude/pcscada/pcsc-scard-monitor.adb
/usr/share/ada/adainclude/pcscada/pcsc-scard-monitor.ads
/usr/share/ada/adainclude/pcscada/pcsc-scard-utils.adb
/usr/share/ada/adainclude/pcscada/pcsc-scard-utils.ads
/usr/share/ada/adainclude/pcscada/pcsc-scard.adb
/usr/share/ada/adainclude/pcscada/pcsc-scard.ads
/usr/share/ada/adainclude/pcscada/pcsc-thin-ifdhandler.ads
/usr/share/ada/adainclude/pcscada/pcsc-thin-reader.ads
/usr/share/ada/adainclude/pcscada/pcsc-thin.adb
/usr/share/ada/adainclude/pcscada/pcsc-thin.ads
/usr/share/ada/adainclude/pcscada/pcsc-version.ads
/usr/share/ada/adainclude/pcscada/pcsc.ads