.\"	$NetBSD: tco.4,v 1.5 2015/05/04 08:16:28 pgoyette Exp $
.\"	$OpenBSD: pwdog.4,v 1.6 2007/12/23 22:16:39 jmc Exp $
.\"
.\" Copyright (c) 2015 The NetBSD Foundation
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Paul Goyette
.\"
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.Dd April 4, 2015
.Dt TCO 4 x86
.Os
.Sh NAME
.Nm tco
.Nd Intel Controller Hub TCO watchdog timer device
.Sh SYNOPSIS
.Cd "tco* at ichlpcib?"
.Sh DESCRIPTION
The
.Nm
driver provides support for the watchdog timer included in the Intel
Controller Hub (ICH).
.Pp
Setting the timer interval and arming the watchdog is performed using
the
.Xr wdogctl 8
utility.
For ICH5 and earlier controllers, the interval is in the range of 2 to
23 seconds; for ICH6 and newer controllers, the interval is in the range
of 1 to 367 seconds.
.Sh SEE ALSO
.Xr wdogctl 8
.Sh HISTORY
The
.Nm
driver first appeared in
.Nx 8.0 .
In earlier releases of
.Nx
the driver was included as part of the
.Xr x86/ichlpcib 4
driver.
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was written by
.An Minoura Makoto Aq Mt minoura@NetBSD.org
and
.An Matthew R. Green Aq Mt mrg@NetBSD.org .
The
.Nm
driver was separated from the
.Xr x86/ichlpcib 4
driver by
.An Paul Goyette Aq Mt pgoyette@NetBSD.org .