| MAINBUS(4) | Kernel Interfaces Manual (Mac68k) | MAINBUS(4) | 
NAME
 mainbus — Mac68k main processor bus device
SYNOPSIS
 mainbus0 at root
DESCRIPTION
 The mainbus interface serves as an abstraction used by the autoconfiguration system to help find and attach busses (e.g. the NuBus expansion bus) or devices (e.g. the math coprocessor) connected to the Macintosh main processor bus.
DIAGNOSTICS
- 
mainbus0 (root).
- 
This is the normal autoconfiguration message indicating that the main processor bus has been found.
 
HISTORY
 The mainbus first appeared in NetBSD 1.2.