[RFC PATCH] libertas: turn radio off when down

[Chris Ball]

Hi Dan,

   > Last I knew there were cases where mesh forwarding was _not_
   > supposed to be on due to the high power drain of the 8388 when the
   > radio was enabled, plus the airplane case.  As long as the
   > networking core doesn't close the devices on suspend, this patch
   > shouldn't have side-effects on mesh forwarding.

The current setup is:

suspend:  caused by idleness, radio stays on, unicast wakeups stay on

sleep:  caused by lid close or power button, radio stays on, wakeups off

I think it's still undecided whether sleep should leave the radio on or
not -- we need to take power measurements now that mesh beacons can be
disabled and see whether the power consumption is significantly reduced.

   > [1] when doing long suspends, when the resume occurs userspace will
   > need to redo the networking setup anyway, scanning and searching
   > for the school server or default mesh channel, because a long
   > suspend most likely means you changed location and increases the
   > likelihood that the networking situation around you changed as
   > well.

Is there a dbus message OHM can pass to NM for this?  (If not, maybe
you could mention which NM functions perform the full scan/search so
that we can wrap them?)

Thanks!

- Chris.
-- 
Chris Ball   <cjb at laptop.org>