isa(4) on OpenBSD
The text e158bb8a738d, as OpenBSD 6.6, OpenBSD 6.5, OpenBSD 6.4, OpenBSD 6.3, OpenBSD 6.2, OpenBSD 6.1 shipped it.
introduction to ISA bus support
The text e158bb8a738d, as OpenBSD 6.6, OpenBSD 6.5, OpenBSD 6.4, OpenBSD 6.3, OpenBSD 6.2, OpenBSD 6.1 shipped it.
introduction to ISA bus support