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* System poweroff
@ 2003-06-30 11:29 siva
       [not found] ` <0ee801c33efa$cd80eaf0$2a0806c0-mtNSFjsC3/e12yEdTghClg@public.gmane.org>
  0 siblings, 1 reply; 12+ messages in thread
From: siva @ 2003-06-30 11:29 UTC (permalink / raw)
  To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f


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Hi,

My system is not getting powered off, if I issue a poweroff / halt -p  / init 0 command. Instead it is shutdowns the system and stops after displaying the following message "Power down". I haven't installed any of the power management (APM / ACPI) option in my kernel.

Is it because of that ?

Thanks,
-Siva

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Imagination is more important than Knowledge"
                               - Albert Einstein
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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^ permalink raw reply	[flat|nested] 12+ messages in thread
* RE: System poweroff
@ 2003-06-30 14:04 SIVAKUMAR SUBRAMANI
       [not found] ` <0376387B0FD00341BC5F806F53607209274A04-HmrA4+uMIHbc/nyudvjrhJ7yRHBCnCMy@public.gmane.org>
  0 siblings, 1 reply; 12+ messages in thread
From: SIVAKUMAR SUBRAMANI @ 2003-06-30 14:04 UTC (permalink / raw)
  To: David Woodhouse; +Cc: Yaroslav Rastrigin, ACPI-Devel mailing list

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^ permalink raw reply	[flat|nested] 12+ messages in thread
* RE: System poweroff
@ 2003-07-01  8:46 Allen_Lee-uiv9WLrdKoDQT0dZR+AlfA
  0 siblings, 0 replies; 12+ messages in thread
From: Allen_Lee-uiv9WLrdKoDQT0dZR+AlfA @ 2003-07-01  8:46 UTC (permalink / raw)
  To: sivakumar.subramani-uxC5H9eHYlcAvxtiuMwx3w,
	dwmw2-wEGCiKHe2LqWVfeAwA7xHQ
  Cc: yarick-343whMTK1pU, acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f


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I also want to study how to make “shutdown” in kernel mode.
Before, I try to trace “shutdown” source code but it seems not a good
method after spending some time on it. Does everyone have better idea?
Allen
 
-----Original Message-----
From: SIVAKUMAR SUBRAMANI [mailto:sivakumar.subramani-uxC5H9eHYlcAvxtiuMwx3w@public.gmane.org] 
Sent: Monday, June 30, 2003 10:05 PM
To: David Woodhouse
Cc: Yaroslav Rastrigin; ACPI-Devel mailing list
Subject: RE: [ACPI] System poweroff
 
Yes, Your right. I need exactly the same thing, just a kernel module that
helps me to shutdown my PC. Since I am not using laptop, I am not much
worried about the power saving. I just want to do a complete poweroff, while
I issue a poweroff command. 
 
Let me try out the Reverse engineering policy to write a kernel module that
just helps me to power-off the system with out having the support of apm in
the kernel.
 
Any help with regard to this are welcomed.
 
Thanks,
Siva
 
-----Original Message----- 
From: David Woodhouse [mailto:dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org] 
Sent: Mon 6/30/2003 6:08 PM 
To: SIVAKUMAR SUBRAMANI 
Cc: Yaroslav Rastrigin; ACPI-Devel mailing list 
Subject: Re: [ACPI] System poweroff
On Mon, 2003-06-30 at 13:21, siva wrote:
> Hi.
>
> Thanks for the reply.
>
> I do not want to use all the features of the APM (such suspend states)
...I
> just want to use the feature of powering off the system completely while
run
> the "poweroff / halt -p" commands.
> So it is possible to do this without enabling the APM /ACPI, just by
adding
> some lines of code in the Kernel.

Yes, you can do this if you really want to, but you need sufficient
documentation for your motherboard and chipset. You need to work out how
to make it tell the PSU to turn itself off.

You may be able to work this out by reverse-engineering the APM BIOS or
ACPI bytecode. There's nothing _special_ about them that makes them able
to turn the machine off -- they're only software, it's just that they're
binary-only software to which we don't have the source.

There's no fundamental reason why you shouldn't be able to write a
proper Linux driver; it's just that like so many other things with only
binary-only driver code, we don't seem to be able to get sufficient
documentation for it.

--
dwmw2
N\x18HS^隊[){([Zzn襴\x044D׬w%ا6i\x17l\x11&x+ljwEjzz0\x0e'Zɩz{^0v\\x13bJ۝DN^[mڲ޵brK&
?ƴ]4N݊Z:m7_\a)ׯzYXX\a)ׯzYb,y+޶^[m+-.ǟ\x1e\x7f+-bا~rz

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^ permalink raw reply	[flat|nested] 12+ messages in thread

end of thread, other threads:[~2003-07-01  8:46 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2003-06-30 11:29 System poweroff siva
     [not found] ` <0ee801c33efa$cd80eaf0$2a0806c0-mtNSFjsC3/e12yEdTghClg@public.gmane.org>
2003-06-30 11:39   ` Marc-Christian Petersen
     [not found]     ` <200306301339.45845.m.c.p-hi6Y0CQ0nG0@public.gmane.org>
2003-06-30 12:10       ` Yaroslav Rastrigin
2003-06-30 12:21         ` siva
     [not found]           ` <0f3001c33f02$254b4440$2a0806c0-mtNSFjsC3/e12yEdTghClg@public.gmane.org>
2003-06-30 12:38             ` David Woodhouse
     [not found]               ` <1056976699.25574.324.camel-U6vq7BvGKfF5pKCnmE3YQOkCa/Q774e0VpNB7YpNyf8@public.gmane.org>
2003-06-30 14:53                 ` Ducrot Bruno
     [not found]                   ` <20030630145309.GD7796-kk6yZipjEM5g9hUCZPvPmw@public.gmane.org>
2003-06-30 15:46                     ` David Woodhouse
     [not found]                       ` <1056988002.25574.614.camel-U6vq7BvGKfF5pKCnmE3YQOkCa/Q774e0VpNB7YpNyf8@public.gmane.org>
2003-06-30 16:46                         ` Ducrot Bruno
2003-06-30 11:47   ` Frank Mehnert
  -- strict thread matches above, loose matches on Subject: below --
2003-06-30 14:04 SIVAKUMAR SUBRAMANI
     [not found] ` <0376387B0FD00341BC5F806F53607209274A04-HmrA4+uMIHbc/nyudvjrhJ7yRHBCnCMy@public.gmane.org>
2003-06-30 14:14   ` Matthew Wilcox
2003-07-01  8:46 Allen_Lee-uiv9WLrdKoDQT0dZR+AlfA

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