transition from active state to doze state.

[Jingcao Hu]

Hi Gurus:
We want to do some experiments for some power management policy on
wireless card, in which we hope that we can control the transition from
active state to doze state and the transition between doze state and
sleep state. The problem is, are there any magic registers that I can
access from the driver to do that in linux? Where can I find some useful
information about this?
Thanks a lot