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.