every time the policy has changed cpufreq could execute
a program wich is defined in the general-section of
cpufreqd.conf. with this the user could define a kind
of notification or do anything else he wants.
i have a cron-job wich looks at the current
scaling_governor and lights one of the laptop-led if
the cpu is in the powersave-mode. having this script
executed by cron every minute seems kinda ugly, having
this done by cpufreqd every time it changes the policy
seems nicer to me.
i'm not sure if anyone beside me needs that feature, so
feel free to ignore me.