.Dd Sep 01, 2005
.Dt itxwd 4 i386
.Os
.Sh NAME
.Nm itxwd
.Nd W83697UF/UG watchdog timer driver
.Sh SYNOPSIS
.Cd device itxwd
.Sh DESCRIPTION
This driver provides access to the watchdog timer (WDT) present on 
W83697UF/UG SuperIO Chip
.Pp
The itx WDT counts down in ticks of approximately 1 second; the
exact value depends on hardware quality and environmental factors.
Supported watchdog intervals range from 2 to 256 ticks.
.Sh EXAMPLES
kldload itxwd             #load the watchdog driver
.Pp
/usr/sbin/watchdogd -t 20 #arm to ~ 20 seconds
kill `cat /var/run/watchdogd.pid`  #gracefully exit the daemon and disarm
.Pp
kldload itxwd                      #unload the driver
console will show the following
.nf
Loading itxwd module.
itxwd0: <Winbond 83697 watchdog device> on motherboard
itxwd0: Watchdog ready...
itxwd0: Watchdog armed
itxwd0: Watchdog disarmed
itxwd0: detached
Unloading itxwd module.
Loading itxwd module.
itxwd0: <Winbond 83697 watchdog device> on motherboard
itxwd0: Watchdog ready...
.fi
.Pp
.Sh SEE ALSO
.Xr watchdog 4 ,
.Xr watchdogd 8 ,
.Xr watchdog 9
.Rs
Datasheet W83697UF/W83697UG Rev A1 May 2005
.Pp
http://www.winbond.com/c-winbondhtm/partner/PDFresult.asp?Pname=887
.Re
.Sh HISTORY
The driver was first written and tested on FreeBSD 6.0
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was written by
.An Gabor Egressy Aq gabor@sentex.net
and
.An Mike Tancsa Aq mike@sentex.net
The driver was heavily based on the ichwd written
by Wm. Daryl Hawkins hawkins@tamu.edu