July 2, 1997 MAINBUS 4 mac68k

### 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.

### SEE ALSO

autoconf(4), obio(4)

### HISTORY

The mainbus first appeared in NetBSD1.2.