Date: Tue, 7 Sep 2010 12:45:36 +1000 (EST) From: Ian Smith <smithi@nimnet.asn.au> To: dave jones <s.dave.jones@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: ACPI questions about press power button Message-ID: <20100907122428.J32216@sola.nimnet.asn.au> In-Reply-To: <20100905120024.A5AD31065732@hub.freebsd.org> References: <20100905120024.A5AD31065732@hub.freebsd.org>
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Re: freebsd-questions Digest, Vol 326, Issue 11, Message: 19
On Sun, 5 Sep 2010 19:04:51 +0800 dave jones <s.dave.jones@gmail.com> wrote:
> I'm running FreeBSD 8 on my desktop. I want to write a file or do something
> when I or someone presses power button. In devd.conf, I added the
> following lines
> for testing:
>
> notify 10 {
> match "system" "ACPI";
> match "subsystem" "Button";
> matcho "notify" "0x00"
> action "echo hello world";
> };
>
> But it doesn't work. Would anyone tell me how to do? Thanks.
I'm not sure this will do what you want anyway; devd will handle the
notify but won't replace the normal action itself, ie it might power
down (hopefully running shutdown actions, synching disks etc), however
'matcho' won't match 'match' :) and that line needs a trailing ';'.
Whether or not it powers down (perhaps depending on BIOS setting, ie
instant-off or 4-second-delay), it may be more useful logging it, say:
action "logger -p kern.emerg 'power button pressed!'";
cheers, Ian
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