How to detect reason for ACPI wakeup?

How to detect reason for ACPI wakeup?

[Marc MERLIN]

Howdy,

My HTPC goes to sleep (S3) and resumes just fine (via RTC or WOL).

My problem is that I need to know whether it woke up from RTC or WOL and I
find nothing in dmesg that gives me a clue for the wakeup reason.

Is it something that I can get from somewhere?

Thanks,
Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/  

Re: How to detect reason for ACPI wakeup?

[Bjorn Helgaas]

On Tue, Apr 17, 2012 at 11:17 AM, Marc MERLIN <marc@merlins.org> wrote:
> Howdy,
>
> My HTPC goes to sleep (S3) and resumes just fine (via RTC or WOL).
>
> My problem is that I need to know whether it woke up from RTC or WOL and I
> find nothing in dmesg that gives me a clue for the wakeup reason.
>
> Is it something that I can get from somewhere?

http://marc.info/?l=linux-acpi&m=133478932527097&w=2 is a similar sort
of request; maybe something similar could be done.

Bjorn

Re: How to detect reason for ACPI wakeup?

[Daniel Drake]

On Mon, Apr 23, 2012 at 2:03 PM, Bjorn Helgaas <bhelgaas@google.com> wrote:
>> My HTPC goes to sleep (S3) and resumes just fine (via RTC or WOL).
>>
>> My problem is that I need to know whether it woke up from RTC or WOL and I
>> find nothing in dmesg that gives me a clue for the wakeup reason.
>>
>> Is it something that I can get from somewhere?
>
> http://marc.info/?l=linux-acpi&m=133478932527097&w=2 is a similar sort
> of request; maybe something similar could be done.

Here's how you can detect RTC wakeup:
http://patchwork.ozlabs.org/patch/153612/

Daniel

Re: How to detect reason for ACPI wakeup?

[Marc MERLIN]

On Mon, Apr 23, 2012 at 02:07:28PM -0600, Daniel Drake wrote:
> On Mon, Apr 23, 2012 at 2:03 PM, Bjorn Helgaas <bhelgaas@google.com> wrote:
> >> My HTPC goes to sleep (S3) and resumes just fine (via RTC or WOL).
> >>
> >> My problem is that I need to know whether it woke up from RTC or WOL and I
> >> find nothing in dmesg that gives me a clue for the wakeup reason.
> >>
> >> Is it something that I can get from somewhere?
> >
> > http://marc.info/?l=linux-acpi&m=133478932527097&w=2 is a similar sort
> > of request; maybe something similar could be done.
> 
> Here's how you can detect RTC wakeup:
> http://patchwork.ozlabs.org/patch/153612/

Thanks for the patches.

Do you know if either is likely to ever make it to mainline?

Thanks,
Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/  

Re: How to detect reason for ACPI wakeup?

[Daniel Drake]

On Mon, Apr 23, 2012 at 2:24 PM, Marc MERLIN <marc@merlins.org> wrote:
> Thanks for the patches.
>
> Do you know if either is likely to ever make it to mainline?

I'm planning on pestering people until they do. The button wakeup one
has been acked so I assume that one is close.
Waiting for comments on the rtc-cmos patch.

Daniel