Power on at specified time.

Power on at specified time.

[Nigel Cunningham]

Hi all.

For a while now I've been wanting to get my laptop to automatically
power on at a particular time of day. I know it's capable of it because
when I do a BIOS upgrade, it powers off and then powers back up a few
seconds later. Would you expect this functionality to be activated
through ACPI, and in particular through the /proc/acpi/alarm interface?
I've tried writing a date & time to /proc/acpi/alarm, but the computer
just freezes (and doesn't unfreeze at the time I chose!).

Regards,

Nigel



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RE: Power on at specified time.

[Grover, Andrew]

> From: Nigel Cunningham [mailto:ncunningham-oKK1aGe2n869koe0gwxAeg@public.gmane.org] 
> For a while now I've been wanting to get my laptop to automatically
> power on at a particular time of day. I know it's capable of 
> it because
> when I do a BIOS upgrade, it powers off and then powers back up a few
> seconds later. Would you expect this functionality to be activated
> through ACPI, and in particular through the /proc/acpi/alarm 
> interface?
> I've tried writing a date & time to /proc/acpi/alarm, but the computer
> just freezes (and doesn't unfreeze at the time I chose!).

Well, go fix it and send me a patch! :)

Seriously, Pat roughed-in the alarm support a long long time ago, but it
needs someone to take another look at it and get it fully functional.

Regards -- Andy


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RE: Power on at specified time.

[Nigel Cunningham]

On Wed, 2003-02-19 at 13:09, Grover, Andrew wrote:
> Well, go fix it and send me a patch! :)
> 
> Seriously, Pat roughed-in the alarm support a long long time ago, but it
> needs someone to take another look at it and get it fully functional.

Gladly, but I wanted to make sure I wasn't barking up the wrong tree
first, and then I need a push in right direction (toward some
documentation!).

Regards,

Nigel



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RE: Power on at specified time.

[Grover, Andrew]

> From: Nigel Cunningham [mailto:ncunningham-oKK1aGe2n869koe0gwxAeg@public.gmane.org] 
> On Wed, 2003-02-19 at 13:09, Grover, Andrew wrote:
> > Well, go fix it and send me a patch! :)
> > 
> > Seriously, Pat roughed-in the alarm support a long long 
> time ago, but it
> > needs someone to take another look at it and get it fully 
> functional.
> 
> Gladly, but I wanted to make sure I wasn't barking up the wrong tree
> first, and then I need a push in right direction (toward some
> documentation!).

Go check out include/linux/mc146818rtc.h. Using this plus the existing
code plus a recent ICH datasheet available on developer.intel.com (I
recommend ICH3m's - section 9.6 is "Real Time Clock Registers") you
should be able to get started.

Hope this helps -- Regards -- Andy


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RE: Power on at specified time.

[Nigel Cunningham]

Thanks, Andy.

I'd just about forgotten about this topic :> I'll give it a go after I
finish the port of Florent's swsusp to 2.5.

Regards,

Nigel

On Fri, 2003-03-14 at 14:02, Grover, Andrew wrote:
> > From: Nigel Cunningham [mailto:ncunningham-oKK1aGe2n869koe0gwxAeg@public.gmane.org] 
> > On Wed, 2003-02-19 at 13:09, Grover, Andrew wrote:
> > > Well, go fix it and send me a patch! :)
> > > 
> > > Seriously, Pat roughed-in the alarm support a long long 
> > time ago, but it
> > > needs someone to take another look at it and get it fully 
> > functional.
> > 
> > Gladly, but I wanted to make sure I wasn't barking up the wrong tree
> > first, and then I need a push in right direction (toward some
> > documentation!).
> 
> Go check out include/linux/mc146818rtc.h. Using this plus the existing
> code plus a recent ICH datasheet available on developer.intel.com (I
> recommend ICH3m's - section 9.6 is "Real Time Clock Registers") you
> should be able to get started.
> 
> Hope this helps -- Regards -- Andy



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