/usr/include/xenomai/analogy/ is in libxenomai-dev 2.6.4+dfsg-0.2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/xenomai/analogy/analogy.h
/usr/include/xenomai/analogy/analogy_driver.h
/usr/include/xenomai/analogy/buffer.h
/usr/include/xenomai/analogy/channel_range.h
/usr/include/xenomai/analogy/command.h
/usr/include/xenomai/analogy/context.h
/usr/include/xenomai/analogy/descriptor.h
/usr/include/xenomai/analogy/device.h
/usr/include/xenomai/analogy/driver.h
/usr/include/xenomai/analogy/instruction.h
/usr/include/xenomai/analogy/ioctl.h
/usr/include/xenomai/analogy/os_facilities.h
/usr/include/xenomai/analogy/subdevice.h
/usr/include/xenomai/analogy/transfer.h
/usr/include/xenomai/analogy/types.h