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From: John Baldwin <jhb@freebsd.org>
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Cc: Bruce Cran <bruce@cran.org.uk>, Mitya <mitya@cabletv.dp.ua>,
	Nathan Whitehorn <nwhitehorn@freebsd.org>
Subject: Re: Cosmetic path to bsdinstall
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On Thursday, February 24, 2011 10:27:59 am Bruce Cran wrote:
> On Thu, 24 Feb 2011 09:00:44 -0600
> Nathan Whitehorn <nwhitehorn@freebsd.org> wrote:
> 
> > Having CAM devices be part of newbus would
> > simplify this a very great deal...
> 
> It's required if we're ever going to have suspend/resume working
> properly because currently CAM doesn't get a suspend notification, so
> doesn't know to spin-down disks etc.

The controllers get a suspend notification though (via device_suspend()
hooks that drivers like mpt, etc. could register for) and could then
use that to post a suspend of the associated buses.  That doesn't require
CAM to use new-bus though.

-- 
John Baldwin