RE: [Acpi] Re: shutdown on pressing the ATX power button

RE: [Acpi] Re: shutdown on pressing the ATX power button

[Grover, Andrew]

Just use acpid - it should notice the power button press and do the right
thing.

We do not want to hardcode what specific buttons do.

Regards -- Andy

> -----Original Message-----
> From: Pavel Machek [mailto:pavel@suse.cz]
> Sent: Thursday, August 09, 2001 10:56 AM
> To: Sergei Haller; linux-kernel@vger.kernel.org; ACPI mailing list
> Subject: [Acpi] Re: shutdown on pressing the ATX power button
> 
> 
> Hi!
> 
> > is there any way to let the system execute something by 
> pressing the ATX
> > power button (preferrable executing 'shutdown -h now', but 
> would be nice
> > if it was configurable)
> > 
> > I looked into the (very large) list archive but didnt find 
> any answer.
> > if it is a kind of FAQ or off topic, please point me to the 
> place I could
> > find an answer.
> 
> Try this, and put this: into inittab
> 
> # Action on special keypress (ALT-UpArrow)
> kb::kbrequest:/etc/rc/rc.reboot 2 0
> 
> --- clean/drivers/acpi/events/evevent.c	Sun Jul  8 23:26:27 2001
> +++ linux/drivers/acpi/events/evevent.c	Sun Jul  8 23:25:01 2001
> @@ -193,6 +168,8 @@
>  
>  	if ((status_register & ACPI_STATUS_POWER_BUTTON) &&
>  		(enable_register & ACPI_ENABLE_POWER_BUTTON)) {
> +                printk ("acpi: Power button pressed!\n");
> +                kill_proc (1, SIGWINCH, 1);
>  		int_status |= acpi_ev_fixed_event_dispatch 
> (ACPI_EVENT_POWER_BUTTON);
>  	}
>  
> 
> -- 
> I'm pavel@ucw.cz. "In my country we have almost anarchy and I 
> don't care."
> Panos Katsaloulis describing me w.r.t. patents at 
> discuss@linmodems.org
> 
> 
> _______________________________________________
> acpi maillist  -  acpi@phobos.fs.tum.de
> http://phobos.fs.tum.de/mailman/listinfo/acpi
> 

Re: [Acpi] Re: shutdown on pressing the ATX power button

[Pavel Machek]

Hi!

> Just use acpid - it should notice the power button press and do the right
> thing.

This is not hardcoded, you can set it up in init just fine. (Well, I
should not use SIGWINCH but some other signal). C-A-D is handled in
very similar way, and I think it is the right way, and should be
extended to halt, too.

I just don't want to run acpid just because I want
powerdown-on-powerbutton.

								Pavel

> We do not want to hardcode what specific buttons do.
> 
> Regards -- Andy
> 
> > -----Original Message-----
> > From: Pavel Machek [mailto:pavel@suse.cz]
> > Sent: Thursday, August 09, 2001 10:56 AM
> > To: Sergei Haller; linux-kernel@vger.kernel.org; ACPI mailing list
> > Subject: [Acpi] Re: shutdown on pressing the ATX power button
> > 
> > 
> > Hi!
> > 
> > > is there any way to let the system execute something by 
> > pressing the ATX
> > > power button (preferrable executing 'shutdown -h now', but 
> > would be nice
> > > if it was configurable)
> > > 
> > > I looked into the (very large) list archive but didnt find 
> > any answer.
> > > if it is a kind of FAQ or off topic, please point me to the 
> > place I could
> > > find an answer.
> > 
> > Try this, and put this: into inittab
> > 
> > # Action on special keypress (ALT-UpArrow)
> > kb::kbrequest:/etc/rc/rc.reboot 2 0
> > 
> > --- clean/drivers/acpi/events/evevent.c	Sun Jul  8 23:26:27 2001
> > +++ linux/drivers/acpi/events/evevent.c	Sun Jul  8 23:25:01 2001
> > @@ -193,6 +168,8 @@
> >  
> >  	if ((status_register & ACPI_STATUS_POWER_BUTTON) &&
> >  		(enable_register & ACPI_ENABLE_POWER_BUTTON)) {
> > +                printk ("acpi: Power button pressed!\n");
> > +                kill_proc (1, SIGWINCH, 1);
> >  		int_status |= acpi_ev_fixed_event_dispatch 
> > (ACPI_EVENT_POWER_BUTTON);
> >  	}
> >  
> > 
> > -- 
> > I'm pavel@ucw.cz. "In my country we have almost anarchy and I 
> > don't care."
> > Panos Katsaloulis describing me w.r.t. patents at 
> > discuss@linmodems.org
> > 
> > 
> > _______________________________________________
> > acpi maillist  -  acpi@phobos.fs.tum.de
> > http://phobos.fs.tum.de/mailman/listinfo/acpi
> > 

-- 
The best software in life is free (not shareware)!		Pavel
GCM d? s-: !g p?:+ au- a--@ w+ v- C++@ UL+++ L++ N++ E++ W--- M- Y- R+

Re: [Acpi] Re: shutdown on pressing the ATX power button

[Sergei Haller]

On Thu, 9 Aug 2001, Grover, Andrew wrote:

> Just use acpid - it should notice the power button press and do the right
> thing.

Thats exactly what I need. Thanks.

One problem I had, though. With ACPI on (and thus APM off) the system
wouldn't power off after halting. Here is the reason:

The shutdown script on my system (SuSE 7.2) looks for /proc/apm or
/proc/sys/acpi and calls 'halt -p' in both casese, else 'halt'.

Changing /proc/sys/acpi to /proc/acpi solved that last problem.
I suppose that other (older) kernel versions used /proc/sys/acpi instead
of /proc/acpi. The best solution is then to check for existence of one of
/proc/apm, /proc/sys/acpi and /proc/acpi.

Thanks again.

> -----Original Message-----
> From: Sergei Haller <Sergei.Haller@math.uni-giessen.de>
> To: linux-kernel@vger.kernel.org
>
> Hi!
>
> > is there any way to let the system execute something by  pressing the ATX
> > power button (preferrable executing 'shutdown -h now', but  would be nice
> > if it was configurable)
> >
> > I looked into the (very large) list archive but didnt find  any answer.
> > if it is a kind of FAQ or off topic, please point me to the  place I could
> > find an answer.

c ya
        Sergei

--------------------------------------------------------------------
         eMail:       Sergei.Haller@math.uni-giessen.de
--------------------------------------------------------------------
Be careful of reading health books, you might die of a misprint.
                -- Mark Twain

Re: [Acpi] Re: shutdown on pressing the ATX power button

[Pavel Machek]

Hi!

> The shutdown script on my system (SuSE 7.2) looks for /proc/apm or
> /proc/sys/acpi and calls 'halt -p' in both casese, else 'halt'.

That's just plain stupid. halt -p should be called. Always.
								Pavel
-- 
Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt,
details at http://atrey.karlin.mff.cuni.cz/~pavel/velo/index.html.

RE: [Acpi] Re: shutdown on pressing the ATX power button

[Grover, Andrew]

Well, I think we're both familiar with both sides of this argument from a
few months ago. I won't rule out your proposed implementation but I'm
sceptical. Can we revisit this issue in a few months? Once acpid is more
feature-complete, we should be able to use it as a reference to discuss the
requirements an init-based power policy would have to meet.

Regards -- Andy

> From: Pavel Machek [mailto:pavel@suse.cz]
> > Just use acpid - it should notice the power button press 
> and do the right
> > thing.
> 
> This is not hardcoded, you can set it up in init just fine. (Well, I
> should not use SIGWINCH but some other signal). C-A-D is handled in
> very similar way, and I think it is the right way, and should be
> extended to halt, too.
> 
> I just don't want to run acpid just because I want
> powerdown-on-powerbutton.
> 
> 								Pavel
> 
> > We do not want to hardcode what specific buttons do.
> > 
> > Regards -- Andy
> > 
> > > -----Original Message-----
> > > From: Pavel Machek [mailto:pavel@suse.cz]
> > > Sent: Thursday, August 09, 2001 10:56 AM
> > > To: Sergei Haller; linux-kernel@vger.kernel.org; ACPI mailing list
> > > Subject: [Acpi] Re: shutdown on pressing the ATX power button
> > > 
> > > 
> > > Hi!
> > > 
> > > > is there any way to let the system execute something by 
> > > pressing the ATX
> > > > power button (preferrable executing 'shutdown -h now', but 
> > > would be nice
> > > > if it was configurable)
> > > > 
> > > > I looked into the (very large) list archive but didnt find 
> > > any answer.
> > > > if it is a kind of FAQ or off topic, please point me to the 
> > > place I could
> > > > find an answer.
> > > 
> > > Try this, and put this: into inittab
> > > 
> > > # Action on special keypress (ALT-UpArrow)
> > > kb::kbrequest:/etc/rc/rc.reboot 2 0
> > > 
> > > --- clean/drivers/acpi/events/evevent.c	Sun Jul  8 23:26:27 2001
> > > +++ linux/drivers/acpi/events/evevent.c	Sun Jul  8 23:25:01 2001
> > > @@ -193,6 +168,8 @@
> > >  
> > >  	if ((status_register & ACPI_STATUS_POWER_BUTTON) &&
> > >  		(enable_register & ACPI_ENABLE_POWER_BUTTON)) {
> > > +                printk ("acpi: Power button pressed!\n");
> > > +                kill_proc (1, SIGWINCH, 1);
> > >  		int_status |= acpi_ev_fixed_event_dispatch 
> > > (ACPI_EVENT_POWER_BUTTON);
> > >  	}
> > >  
> > > 
> > > -- 
> > > I'm pavel@ucw.cz. "In my country we have almost anarchy and I 
> > > don't care."
> > > Panos Katsaloulis describing me w.r.t. patents at 
> > > discuss@linmodems.org
> > > 
> > > 
> > > _______________________________________________
> > > acpi maillist  -  acpi@phobos.fs.tum.de
> > > http://phobos.fs.tum.de/mailman/listinfo/acpi
> > > 
> 
> -- 
> The best software in life is free (not shareware)!		Pavel
> GCM d? s-: !g p?:+ au- a--@ w+ v- C++@ UL+++ L++ N++ E++ W--- M- Y- R+
>