On Sep 4, 2012, at 1:25 PM, Matthieu Herrb wrote:
On Tue, Sep 04, 2012 at 12:02:45PM +0200, dou...@online.de wrote:
I appreciate the macppc port of OpenBSD.
Why is there no suspend mode on laptops?
1) Not enough hardware documentation
2) Developers/users don't care
3) No human resources
4) Something else (please specify)
A mix of 1, 2 and 3.
thx.
What is the most likely way to get it?
1) Hardware donation
2) $$$ donation (now much?)
3) Some motivated guy without prior experience in kernel-land
implements it
4) Something else (please specify)
Probably 3, or 4) a guy with enough experience of macppc hardware and
kernel suspend/resume framework implements it.
thx.
I could donate hardware/money but to find a motivated guy as in (4)
sounds really hard.
I've downloaded the xnu kernel from opensource.apple.com to see how
Apple implemented this. A grep for "suspend" gave quite a few results
but at I couldn't tell which code is responsible for suspending
processes and which for suspending the hardware yet.
The zaurus apm manual says:
The apm driver provides an interface which simulates the Advanced
Power Management (APM) BIOS functions.
Does that mean on powerpc the kernel needs to call openfirmware
functions to suspend the machine?
Is there more information about the suspend/resume framework except
the corresponding source code of other platforms, e.g. zaurus?
I couldn't find anything that goes beyond this:
http://www.bsdcan.org/2009/schedule/events/131.en.html
Personnaly I lost interest on this topic. the batteries of my iBook
are all too weak to continue using it in a way where suspend/resume
would be useful.
You can repack the battery: http://www.youtube.com/watch?v=YKyhNkQzE5E.
Complete shutdown/restart is a pain IMO: wait n minutes until system
goes up; navigate to the right directory; open files associated with
your last project etc.
Just closing the lid and opening it later is a satisfaction compared
to the steps described above.
Regards,
Double You
--
Matthieu Herrb
