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From: Jon Dufresne <jdufresne@vision-gaming.com>
To: linux-acpi@vger.kernel.org
Subject: ACPI and power failure
Date: Fri, 16 Feb 2007 12:09:49 -0500	[thread overview]
Message-ID: <45D5E55D.4000802@vision-gaming.com> (raw)

Hi,

Is there anything ACPI related that deals with a AC power fail in the 
system?

I am developing an embedded system that has very limited writes to a 
flash device, other than that all file systems are read only. I want to 
turn this device on and off with one main switch that will cut the AC 
power. Turning it on this way is not a problem. When I turn it off I am 
a bit worried that if in the middle of a write the r/w file system may 
be corrupted. I am curious if there is anything ACPI related that can 
detect an AC power fail and in the 1-5 ms before DC power is lost 
quickly do the bare essentials of house keeping to prevent fs corruption.

Any input on this would be helpful.

Thanks,
Jon

             reply	other threads:[~2007-02-16 17:29 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-16 17:09 Jon Dufresne [this message]
2007-02-16 17:59 ` ACPI and power failure Len Brown

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