From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@quanstro.net>
Date: Tue, 22 Oct 2013 04:58:46 -0400
To: 9fans@9fans.net
Message-ID: <e72580210f1cbac0f6550ed3b44ee40d@brasstown.quanstro.net>
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Subject: [9fans] safe power button
Topicbox-Message-UUID: 8814ddcc-ead8-11e9-9d60-3106f5b1d025

i thought this was a fun little hack with acpi, the nix kernel, and
cooperative hardware.

don't you hate it when you hit the power button and that moment of
doubt creaps in?  did i halt the system ... or not.  perhaps it hung?

solution.  teach the power button to just take care of this stuff.
here's the script, which requires to very recent patches to 9atom:

	dial/expect powerbutton< /dev/acpievent &&
		echo fshalt starting .... &&
		fshalt -h

fshalt -h echos "power off" into /dev/acpictl.

- erik