I'm interested in this as well.  On the Gumstix Overo, with the Summit expansion board, if I run 'echo mem > /sys/power/state', the OS appears to perform some steps to put the system to sleep, but it usually comes right back to the prompt.  If I run the command through a console connection (via kermit or minicom) it will usually begin going to sleep, and give me an '@overo' prompt with no username.  I haven't found out yet how to properly do this, or how to wake the system back up if it actually gets to sleep.

On Tue, Apr 20, 2010 at 3:38 AM, Kirk Martinez <km@ecs.soton.ac.uk> wrote:
This reminds me to ask if anyone has experience of power management on
the overo yet? I've lost track of the thread on kernel mods etc..
Is it better under Ubuntu?

Cheers
Kirk Martinez
ps:our Gumstix base station is in the newspapers today - not the probes
- they're PIC:
http://www.guardian.co.uk/education/2010/apr/19/scientists-sensor-climate-change

tedt wrote:
> Hi,
>
> The datasheet for the W2CBW003 shows a low power and standby mode.  Does
> anyone know how to enable these modes?
>
> I found a previous post here:
> http://old.nabble.com/Turning-Bluetooth-and-or-WiFi-Radios-On-and-Off-to25394823.html#a25394823
>
> But there has been no reply.
>
> Thanks,
> Ted

--
Electronics and Computer Science
University of Southampton, UK
+44 (0)2380 594491
http://www.ecs.soton.ac.uk/~km

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