sk(4) on OpenBSD
The text 2a9431d5c70a, as OpenBSD 6.9, OpenBSD 6.8, OpenBSD 6.7, OpenBSD 6.6, OpenBSD 6.5, OpenBSD 6.4, OpenBSD 6.3, OpenBSD 6.2, OpenBSD 6.1, OpenBSD 6.0, OpenBSD 5.9, OpenBSD 5.8, OpenBSD 5.7 shipped it.
SysKonnect XMAC II and Marvell Yukon 10/100/Gigabit Ethernet device