[Linux-ia64] ACPI power button events

[Linux-ia64] ACPI power button events

[Michael Madore]

Hi,

Is pressing the power button on a Big Sur workstation supposed to write
anything to /proc/acpi/event?  It doesn't seem to on my system.

Mike

Re: [Linux-ia64] ACPI power button events

[KOCHI, Takayoshi]

Hi,

On Mon, 14 Jan 2002 15:01:24 -0800
Michael Madore <mmadore@turbolinux.com> wrote:

> Hi,
> 
> Is pressing the power button on a Big Sur workstation supposed to write
> anything to /proc/acpi/event?  It doesn't seem to on my system.

I tested the same and got the same result.
I suppose BigSur doesn't support the button feature in its
firmware.

If it does, you should see "ACPI: Power Button (FF) found" in
boot message and you will see a /proc/acpi/button directory.

If the button event is properly processed, you can see
"button power 00000080 00000000"
line when you cat /proc/acpi/event.

Thanks,
-- 
KOCHI Takayoshi <t-kouchi@cq.jp.nec.com/t-kouchi@mvf.biglobe.ne.jp>

Re: [Linux-ia64] ACPI power button events

[Michael Madore]

"KOCHI, Takayoshi" wrote:
> 
> Hi,
> 
> On Mon, 14 Jan 2002 15:01:24 -0800
> Michael Madore <mmadore@turbolinux.com> wrote:
> 
> > Hi,
> >
> > Is pressing the power button on a Big Sur workstation supposed to write
> > anything to /proc/acpi/event?  It doesn't seem to on my system.
> 
> I tested the same and got the same result.
> I suppose BigSur doesn't support the button feature in its
> firmware.
> 
> If it does, you should see "ACPI: Power Button (FF) found" in
> boot message and you will see a /proc/acpi/button directory.

Yes, I see this message upon boot, and the /proc/acpi/button directory
is created.

> If the button event is properly processed, you can see
> "button power 00000080 00000000"
> line when you cat /proc/acpi/event.

Nothing seems to get written to the event file.

Mike

Re: [Linux-ia64] ACPI power button events

[KOCHI, Takayoshi]

> > > Is pressing the power button on a Big Sur workstation supposed to write
> > > anything to /proc/acpi/event?  It doesn't seem to on my system.
> > 
> > I tested the same and got the same result.
> > I suppose BigSur doesn't support the button feature in its
> > firmware.
> > 
> > If it does, you should see "ACPI: Power Button (FF) found" in
> > boot message and you will see a /proc/acpi/button directory.
> 
> Yes, I see this message upon boot, and the /proc/acpi/button directory
> is created.
> 
> > If the button event is properly processed, you can see
> > "button power 00000080 00000000"
> > line when you cat /proc/acpi/event.
> 
> Nothing seems to get written to the event file.

Hmm...
Can you check /proc/interrupts and see any interrupts on
acpi line?

Oh well, our BigSur says

 39:	0	0   IO-SAPIC-edge  acpi

But ACPI specification says the SCI (ACPI interrupt) should be
active low, level and shareable.  I'll look into it...

Thanks,
-- 
KOCHI Takayoshi <t-kouchi@cq.jp.nec.com/t-kouchi@mvf.biglobe.ne.jp>