Re: ACPI/APM

2008-03-25 Thread Jordan Crouse
On 25/03/08 14:35 +0530, Aswathy Prasad wrote:
> Hi
> 
> In OLPC, which of these standards is used (ACPI or APM)?

Neither.

> It is said that power management feature is being added to it. How could we
> know the latest developments in the power management area?

Everything you need is in the kernel:
http://dev.laptop.org/git?p=olpc-2.6;a=tree;h=stable;hb=stable

For suspend to RAM and SCI handling (the most interesting part so far),
the file you want is

http://dev.laptop.org/git?p=olpc-2.6;a=blob;f=arch/i386/kernel/olpc-pm.c;h=0ba72bab014bcc63d4ae52a560cb717f9bcbf434;hb=stable

You'll also want to investigate OHM, which is the userspace power controller.

Good luck.

Jordan

-- 
Jordan Crouse
Systems Software Development Engineer 
Advanced Micro Devices, Inc.

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Re: ACPI/APM

2008-03-25 Thread Chris Ball
Hi,
 
   > In OLPC, which of these standards is used (ACPI or APM)?

Neither, we just talk to the hardware directly.

   > It is said that power management feature is being added to it. How
   > could we know the latest developments in the power management area?
 
If you have a laptop, the easiest way is to download the latest Joyride
build and test the automatic power management there.  There are also
some related wiki pages:

http://wiki.laptop.org/go/Power_Management
http://wiki.laptop.org/go/OHM_power_management
http://wiki.laptop.org/go/Suspend_and_resume

- Chris.
-- 
Chris Ball   <[EMAIL PROTECTED]>
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ACPI/APM

2008-03-25 Thread Aswathy Prasad
Hi

In OLPC, which of these standards is used (ACPI or APM)?

It is said that power management feature is being added to it. How could we
know the latest developments in the power management area?


aswathy
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