1.\" $OpenBSD: ichwdt.4,v 1.8 2014/11/15 14:41:02 bentley Exp $ 2.\" 3.\" Copyright (c) 2005 Alexander Yurchenko <grange@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: November 15 2014 $ 18.Dt ICHWDT 4 19.Os 20.Sh NAME 21.Nm ichwdt 22.Nd Intel 6300ESB ICH watchdog timer device 23.Sh SYNOPSIS 24.Cd "ichwdt* at pci?" 25.Sh DESCRIPTION 26The 27.Nm 28driver supports the watchdog timer of the Intel 6300ESB I/O Controller Hub. 29.Pp 30.Nm 31provides the standard 32.Xr watchdog 4 33interface and may be used with 34.Xr watchdogd 8 . 35The watchdog timer can be configured via 36.Xr sysctl 8 . 37.Pp 38Once the watchdog timer resets the CPU, the driver reports it on the 39next boot displaying the 40.Dq reboot on timeout 41message in the dmesg. 42.Sh SEE ALSO 43.Xr intro 4 , 44.Xr pci 4 , 45.Xr watchdog 4 , 46.Xr sysctl 8 , 47.Xr watchdogd 8 48.Sh HISTORY 49The 50.Nm 51device first appeared in 52.Ox 3.8 . 53.Sh AUTHORS 54The 55.Nm 56driver was written by 57.An Alexander Yurchenko Aq Mt grange@openbsd.org . 58