bus_generic_print_child(9) on FreeBSD
The text fc4cf237eb3f, as FreeBSD 14.2-RELEASE, FreeBSD 14.1-RELEASE, FreeBSD 14.0-RELEASE, FreeBSD 13.5-RELEASE, FreeBSD 13.4-RELEASE, FreeBSD 13.3-RELEASE shipped it.
generic implementation of DEVICE_PRINT_CHILD for buses