File list of package libfreeaptx-dev in bullseye-backports of architecture amd64

/usr/include/freeaptx.h
/usr/lib/x86_64-linux-gnu/libfreeaptx.so
/usr/lib/x86_64-linux-gnu/pkgconfig/libfreeaptx.pc
/usr/share/doc/libfreeaptx-dev/README.Debian
/usr/share/doc/libfreeaptx-dev/changelog.Debian.gz
/usr/share/doc/libfreeaptx-dev/copyright