SMU(4)               OpenBSD Programmer's Manual (MacPPC)               SMU(4)

NAME
     smu - Apple System Management Unit

SYNOPSIS
     smu? at mainbus0

DESCRIPTION
     The smu driver provides support for the System Management Unit found on
     Apple iMac G5 and some Power Mac G5 machines.

     The System Management Unit controls the fans in these systems.  It also
     contains the real time clock and an I2C controller.

SEE ALSO
     iic(4), intro(4)

HISTORY
     The smu driver first appeared in OpenBSD 3.9.

AUTHORS
     The smu driver was written by Mark Kettenis.

BUGS
     Fan control is not implemented yet.

OpenBSD 4.7                      May 31, 2007                                1
