IOBUS(4)            NetBSD/acorn26 Kernel Interfaces Manual           IOBUS(4)

NAME
     iobus -- Device driver for the I/O bus

SYNOPSIS
     iobus0 at root

DESCRIPTION
     Systems supported by NetBSD/acorn26 have a 16-bit I/O bus connected to
     the CPU bus by bi-directional buffers managed by the IOC.  The iobus
     driver provides support for this bus.  All NetBSD/acorn26 kernels need
     this driver.

     On Archimedes systems, the only device attached at iobus is the IOC.
     While MEMC podules are physically iobus devices, they're logically
     treated as being attached to the IOC.  On machines with an IOEB, the Uni-
     versal Peripheral Controller chip is also attached at iobus.

SEE ALSO
     podulebus(4)

NetBSD 5.0_STABLE               April 25, 2001               NetBSD 5.0_STABLE
