[off topic - RFC] APM suspend + hdparam

From: Soewono Effendi (seffendi@web.de)
Date: Mon Jun 17 2002 - 03:24:03 EST


Hello there,
 
I've been playing around with hdparam.
 
With one of these parameter, one can enjoy the __silence__ stolen by his/her
beloved computer :(
 -y put IDE drive in standby mode
 -Y put IDE drive to sleep
e.g.
hdparm -Y /dev/hda
(assume you have only one hard disk, and your linux is there)
 
But...
As soon as the kernel accesses the hard disk (bflush? kswapd? etc.), gone is
the __silence__ :(
 
So I tried this:
apm -s & hdparm -Y /dev/hda &
 
sometime it works, sometime not. I know that "software suspend" is on the
way, but till denn, this might be easier to "fix".
 
 
Idea:
        One can __FREEZE__ the kernel, put IDE drive to sleep and then __sus
pend__ the system, just like "apm -s" does.
        If the system wakes up again, waits till IDE is waken up (or maybe le
ts the kernel wakes it up), and just continue to work as normal, stealin
g your __silence__ again.
 
Requirement:
        APM must work ;).
        ACPI never tested before.
 
Purpose:
        To have ONE BIG BUTTON(TM) that give you a break!
        and just like magic, on an instant your are back on work again!
        If you lose your power during this suspend,
        then may the penguin be with you ;)
 
I would like to call this feature HOT SUSPEND(TM) :)
 
Best regards,
Soewono Effendi
 
 
DISCLAIMER:
        I take no responsibilities in any case of data and/or hardware lost
        if you try these experiments :)
-----------------
SEffendi(a)web.de
=================
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