1.\" $NetBSD: tco.4,v 1.5 2015/05/04 08:16:28 pgoyette Exp $ 2.\" $OpenBSD: pwdog.4,v 1.6 2007/12/23 22:16:39 jmc Exp $ 3.\" 4.\" Copyright (c) 2015 The NetBSD Foundation 5.\" All rights reserved. 6.\" 7.\" This code is derived from software contributed to The NetBSD Foundation 8.\" by Paul Goyette 9.\" 10.\" Redistribution and use in source and binary forms, with or without 11.\" modification, are permitted provided that the following conditions 12.\" are met: 13.\" 1. Redistributions of source code must retain the above copyright 14.\" notice, this list of conditions and the following disclaimer. 15.\" 2. Redistributions in binary form must reproduce the above copyright 16.\" notice, this list of conditions and the following disclaimer in the 17.\" documentation and/or other materials provided with the distribution. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29.\" POSSIBILITY OF SUCH DAMAGE. 30.\" 31.Dd April 4, 2015 32.Dt TCO 4 x86 33.Os 34.Sh NAME 35.Nm tco 36.Nd Intel Controller Hub TCO watchdog timer device 37.Sh SYNOPSIS 38.Cd "tco* at ichlpcib?" 39.Sh DESCRIPTION 40The 41.Nm 42driver provides support for the watchdog timer included in the Intel 43Controller Hub (ICH). 44.Pp 45Setting the timer interval and arming the watchdog is performed using 46the 47.Xr wdogctl 8 48utility. 49For ICH5 and earlier controllers, the interval is in the range of 2 to 5023 seconds; for ICH6 and newer controllers, the interval is in the range 51of 1 to 367 seconds. 52.Sh SEE ALSO 53.Xr wdogctl 8 54.Sh HISTORY 55The 56.Nm 57driver first appeared in 58.Nx 8.0 . 59In earlier releases of 60.Nx 61the driver was included as part of the 62.Xr x86/ichlpcib 4 63driver. 64.Sh AUTHORS 65.An -nosplit 66The 67.Nm 68driver was written by 69.An Minoura Makoto Aq Mt minoura@NetBSD.org 70and 71.An Matthew R. Green Aq Mt mrg@NetBSD.org . 72The 73.Nm 74driver was separated from the 75.Xr x86/ichlpcib 4 76driver by 77.An Paul Goyette Aq Mt pgoyette@NetBSD.org . 78