From owner-freebsd-arch@FreeBSD.ORG  Fri Oct 19 09:41:07 2007
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To: Alexander Leidinger <Alexander@Leidinger.net>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Fri, 19 Oct 2007 11:34:44 +0200."
	<20071019113444.xinyc37x9cg0ckk0@webmail.leidinger.net> 
Date: Fri, 19 Oct 2007 09:41:04 +0000
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Sender: phk@critter.freebsd.dk
Cc: arch@freebsd.org, "Constantine A. Murenin" <cnst@freebsd.org>
Subject: Re: sensors fun.. 
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In message <20071019113444.xinyc37x9cg0ckk0@webmail.leidinger.net>, Alexander L
eidinger writes:

>I was thinking you talk about the interface between the kernel and the  
>userland. Now I think that you talk more or less about something which  
>could be implemented e.g., as an userland library which not only polls  
>the kernel sensors framework, but provides the single-system sensor  
>data (and could be a base of a singe-system sensor daemon which feeds  
>its data to a group-level sensors framework). Does this sound like  
>what you have in mind?

It certainly sounds more sensible.

The kernel-userland interface should happen over a filedescriptor
(either device or unix-domain socket) so that whatever daemon we
park on the fd can just use select/poll/kqueue to wait for events.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.