/usr/lib/x86_64-linux-gnu/libffado.so is in libffado-dev 2.3.0-5.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libffado.so.2
/usr/lib/x86_64-linux-gnu/libffado.so.2