detecting inactivity for power management

[<ashok.shanmugam@xxxxxxxxx>]

Hi all

 

I have completed implementing power management callbacks of s2ram for a ppc board. And i am able to put the board to suspend to ram using

echo mem > /sys/power/state.

 

Now i wanted a script / daemon to detect the inactivity in the system and then to put the system to suspend.

 

Had googled and all i got is based on d-bus interface. Mine is an  embedded ppc board with minimum filesystem without d-bus libraries.

 

Can anyone please let me know how to find the inactivity in this case.

 

Thanking you in advance.

 

Regards

Ashok