LinuxQuestions.org - fan control in acpi

hi there:

having just learned about acpi and passing values into /proc files by doing:

PHP Code:




echo brightness: 5 > /proc/acpi/toshiba/lcd

i can now finally change the brightness of my toshiba lcd.

my question is, i now want to shut down/control the fan by doing:

PHP Code:




echo running: 0 > /proc/acpi/toshiba/fan

but this does not seem to shut down and fan. the fan on my laptop seem to run constently, is there a way to find out if its functioning normaly?

cheers

CHUN