From owner-svn-src-all@FreeBSD.ORG  Thu May 21 17:17:04 2009
Return-Path: <owner-svn-src-all@FreeBSD.ORG>
Delivered-To: svn-src-all@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id DC1B21065706;
	Thu, 21 May 2009 17:17:04 +0000 (UTC)
	(envelope-from phk@critter.freebsd.dk)
Received: from phk.freebsd.dk (phk.freebsd.dk [130.225.244.222])
	by mx1.freebsd.org (Postfix) with ESMTP id 9A1638FC0A;
	Thu, 21 May 2009 17:17:04 +0000 (UTC)
	(envelope-from phk@critter.freebsd.dk)
Received: from critter.freebsd.dk (critter.freebsd.dk [192.168.61.3])
	by phk.freebsd.dk (Postfix) with ESMTP id 84B1269959;
	Thu, 21 May 2009 17:17:03 +0000 (UTC)
Received: from critter.freebsd.dk (localhost [127.0.0.1])
	by critter.freebsd.dk (8.14.3/8.14.3) with ESMTP id n4LHH2st002071;
	Thu, 21 May 2009 17:17:02 GMT (envelope-from phk@critter.freebsd.dk)
To: "M. Warner Losh" <imp@bsdimp.com>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Thu, 21 May 2009 10:15:37 CST."
	<20090521.101537.864824728.imp@bsdimp.com> 
Date: Thu, 21 May 2009 17:17:02 +0000
Message-ID: <2070.1242926222@critter.freebsd.dk>
Sender: phk@critter.freebsd.dk
Cc: scottl@samsco.org, src-committers@FreeBSD.org, jhb@FreeBSD.org,
	svn-src-all@FreeBSD.org, attilio@FreeBSD.org,
	svn-src-head@FreeBSD.org, rwatson@FreeBSD.org, kostikbel@gmail.com
Subject: Re: svn commit: r192535 - head/sys/kern 
X-BeenThere: svn-src-all@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "SVN commit messages for the entire src tree \(except for &quot;
	user&quot; and &quot; projects&quot; \)" <svn-src-all.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-all>,
	<mailto:svn-src-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-all>
List-Post: <mailto:svn-src-all@freebsd.org>
List-Help: <mailto:svn-src-all-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-all>,
	<mailto:svn-src-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 21 May 2009 17:17:05 -0000

In message <20090521.101537.864824728.imp@bsdimp.com>, "M. Warner Losh" writes:

>Right now, the devctl_notify() is what gets it into devd.  However,
>I'd always viewed devd as having multiple event sources and not just
>from the /dev/devctl device.

Correct, but kqueuing /dev is not nearly as expressiv as devctl,
where the protocol has space where the device driver could pass
useful information to devd(8).

For instance, I find the regexp matching of ethernet drivers very,
very silly: the device driver should just tell devd(8) that it is
an ethernet, so that we don't have this non-documented registry of
device driver names.

Poul-Henning

-- 
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.