Difference between revisions of "Code/fan-enable-safe"
(moved from ACPI fan control script) |
(Script in <pre> block. Why is it proprietary?) |
||
| Line 1: | Line 1: | ||
| + | <pre> | ||
#!/bin/sh | #!/bin/sh | ||
| Line 39: | Line 40: | ||
sleep 5 | sleep 5 | ||
done | done | ||
| + | </pre> | ||
Latest revision as of 09:23, 11 April 2025
#!/bin/sh
# july 2005 Erik Groeneveld, erik@cq2.nl
# It makes sure the fan is on in case of errors
# and only turns it off when all temps are ok.
IBM_ACPI=/proc/acpi/ibm
THERMOMETER=$IBM_ACPI/thermal
FAN=$IBM_ACPI/fan
MAXTRIPPOINT=65
MINTRIPPOINT=60
TRIPPOINT=$MINTRIPPOINT
echo fancontrol: Thermometer: $THERMOMETER, Fan: $FAN
echo fancontrol: Current `cat $THERMOMETER`
echo fancontrol: Controlling temperatures between $MINTRIPPOINT and $MAXTRIPPOINT degrees.
# Make sure the fan is turned on when the script crashes or is killed
trap "echo enable > $FAN; exit 0" HUP KILL INT ABRT STOP QUIT SEGV TERM
while [ 1 ];
do
command=enable
temperatures=`sed s/temperatures:// < $THERMOMETER`
result=
for temp in $temperatures
do
test $temp -le $TRIPPOINT && result=$result.Ok
done
if [ "$result" = ".Ok.Ok.Ok.Ok.Ok.Ok.Ok.Ok" ]; then
command=disable
TRIPPOINT=$MAXTRIPPOINT
else
command=enable
TRIPPOINT=$MINTRIPPOINT
fi
echo $command > $FAN
# Temperature ramps up quickly, so pick this not too large:
sleep 5
done
