/usr/ is in gr-iqbal 0.37.1.5.d4fd4d-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/gnuradio/iqbalance/
/usr/share/
/usr/share/doc/
/usr/share/doc/gr-iqbal/
/usr/share/doc/gr-iqbal/copyright
/usr/share/gnuradio/
/usr/share/gnuradio/grc/
/usr/share/gnuradio/grc/blocks/
/usr/share/gnuradio/grc/blocks/iqbalance_fix_cc.xml
/usr/share/gnuradio/grc/blocks/iqbalance_optimize_c.xml
/usr/include/
/usr/include/gnuradio/
/usr/include/gnuradio/iqbalance/optimize_c.h
/usr/include/gnuradio/iqbalance/fix_cc.h
/usr/include/gnuradio/iqbalance/api.h
/usr/include/gnuradio/swig/
/usr/include/gnuradio/swig/iqbalance_swig.i
/usr/include/gnuradio/swig/iqbalance_swig_doc.i
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/python2.7/
/usr/lib/python2.7/dist-packages/
/usr/lib/python2.7/dist-packages/gnuradio/
/usr/lib/python2.7/dist-packages/gnuradio/iqbalance/
/usr/lib/python2.7/dist-packages/gnuradio/iqbalance/iqbalance_swig.py
/usr/lib/python2.7/dist-packages/gnuradio/iqbalance/_iqbalance_swig.so
/usr/lib/python2.7/dist-packages/gnuradio/iqbalance/__init__.py
/usr/share/doc/gr-iqbal/changelog.Debian.gz
/usr/lib/x86_64-linux-gnu/libgnuradio-iqbalance.so