/usr/share/doc/linux-doc/html/vidioc-query-dv-timings.xml is in linux-doc 3.13.0-40.69.
This file is owned by root:root, with mode 0o777.
It is a symlink to /build/buildd/linux-3.13.0/Documentation/DocBook/media/v4l/vidioc-query-dv-timings.xml