MAINBUS(4)                OpenBSD Programmer's Manual               MAINBUS(4)

NAME
     mainbus - device tree root

SYNOPSIS
     mainbus0 at root

DESCRIPTION
     mainbus provides an abstraction for all system buses to attach to.  It is
     the start of the device tree and always attached.  It is not a physical
     device as such, but an abstraction to which other devices may attach.

     The actual buses which attach are largely machine-dependent; refer to the
     individual man pages for more information.

SEE ALSO
     autoconf(4), intro(4)

OpenBSD 4.7                      May 31, 2007                                1
