/usr/include/uhd/transport/ is in libuhd-dev 3.9.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/uhd/transport/bounded_buffer.hpp
/usr/include/uhd/transport/bounded_buffer.ipp
/usr/include/uhd/transport/buffer_pool.hpp
/usr/include/uhd/transport/chdr.hpp
/usr/include/uhd/transport/if_addrs.hpp
/usr/include/uhd/transport/tcp_zero_copy.hpp
/usr/include/uhd/transport/udp_constants.hpp
/usr/include/uhd/transport/udp_simple.hpp
/usr/include/uhd/transport/udp_zero_copy.hpp
/usr/include/uhd/transport/usb_control.hpp
/usr/include/uhd/transport/usb_device_handle.hpp
/usr/include/uhd/transport/usb_zero_copy.hpp
/usr/include/uhd/transport/vrt_if_packet.hpp
/usr/include/uhd/transport/zero_copy.hpp