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.TH fan_ctrl 8 "November 2 1998" "CCC" "Corel NetWinder Utilities"
.SH NAME
fan_ctrl \- control fan on rev 5 NetWinders
.SH SYNOPSIS
.B /sbin/fan_ctrl
.RB [ on | off | start ]
.SH DESCRIPTION
This utility can be used to enable/disable the fan on a Revision 5
NetWinder (previous models lack the necessary hardware support). Turning
the fan off for extended periods of time may cause the NetWinder to overheat
and is therefore not recommended. If you wish to operate "silently" with
the fan off, it is suggested that the watchdog timer (see
.BR start_wdog (8))
be modified to monitor the temperature and restart the fan as necessary.
This utility merely controls the fan ON/OFF hardware bit;
the speed of the fan is controlled by the
.BR set_therm (8)
utility.
.SH OPTIONS
.TP
.I on
Enable fan control (Turns the fan ON).
.TP
.I off
Disable fan control (Turns the fan OFF).
.TP
.I start
Enables fan control, and briefly sets the fan to HI speed, then restores
the original thermostate setting. This is intended for use in the
initialization script
.I /etc/rc.d/rc.sysinit
to ensure that the fan is started during booting. Some fans will not start
if they power up in LO speed, hence this command.
.SH FILES
.TP 24
.I /sbin/fan_ctrl
Binary executable.
.TP 24
.I /man/man8/fan_ctrl.8
Manual page.
.SH SEE ALSO
.BR set_therm (8),
.BR start_wdog (8)
.SH DIAGNOSTICS
<Not yet written>
.SH AUTHOR
The program is written by Woody Suwalski <woody@corelcomputer.com>, and the
man page was written by Ralph Siemsen <ralphs@corelcomputer.com>. Both are
distributed under the terms of the GPL.
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