device_get_unit(9) on FreeBSD
The text ec1dca11e5ab, as FreeBSD 13.2-RELEASE, FreeBSD 13.1-RELEASE, FreeBSD 13.0-RELEASE shipped it.
access the unit number of a device
The text ec1dca11e5ab, as FreeBSD 13.2-RELEASE, FreeBSD 13.1-RELEASE, FreeBSD 13.0-RELEASE shipped it.
access the unit number of a device