1.\" $OpenBSD: lom.4,v 1.4 2009/09/23 22:08:07 kettenis Exp $ 2.\" 3.\" Copyright (c) 2009 Mark Kettenis <kettenis@openbsd.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: September 23 2009 $ 18.Dt LOM 4 sparc64 19.Os 20.Sh NAME 21.Nm lom 22.Nd lights out management 23.Sh SYNOPSIS 24.Cd "lom* at ebus?" 25.Sh DESCRIPTION 26The 27.Nm 28driver provides support for the LOMlite lights out management module 29found on Sun Netra t1 systems and the LOMlite2 module found on Sun 30Fire V100/V120 and Sun Netra X1 systems. 31Temperature readings, PSU status and fan status provided by the LOM 32are made available through the 33.Xr sysctl 8 34interface. 35The integrated 36.Xr watchdog 4 37timer can be configured through the 38.Xr sysctl 8 39interface as well. 40The watchdog timer supports timeouts between 1 and 126 seconds. 41If the watchdog is disabled, which is its default state, it will turn 42on the system's fault LED after the maximum timeout of 126 seconds. 43.Pp 44The 45.Nm 46driver will update the hostname stored in the LOM whenever the 47system's hostname is changed. 48.Sh SEE ALSO 49.Xr hostname 1 , 50.Xr ebus 4 , 51.Xr intro 4 , 52.Xr watchdog 4 , 53.Xr sensorsd 8 , 54.Xr sysctl 8 55.Sh HISTORY 56The 57.Nm 58driver first appeared in 59.Ox 4.7 . 60.Sh AUTHORS 61The 62.Nm 63driver was written by 64.An Mark Kettenis Aq kettenis@openbsd.org . 65