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

NAME
     xlights - Xserve G4 and G5 front panel LEDs

SYNOPSIS
     xlights* at macobio?

DESCRIPTION
     The xlights driver provides support for the on-board i2s virtual sound
     device that drives the front panel LEDs of Apple G4 and G5 Xserve ma-
     chines.

     The lights provide an indication of system load and health.  System load
     is indicated by three dots travelling in a ring around the sixteen LEDs
     found on the front panel.  When the system is lightly loaded these dots
     travel quickly and slow down as system load increases.  System health is
     indicated by the absence of the dots which means a hung machine or one
     that is in ddb(4).

SEE ALSO
     intro(4), macobio(4)

OpenBSD 4.7                      May 31, 2007                                1
