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Date: Thu, 1 Jun 2006 12:01:57 -0400
From: "Zaphod Beeblebrox" <zbeeble@gmail.com>
To: "John Baldwin" <jhb@freebsd.org>
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Cc: freebsd-hackers@freebsd.org, kylin <fierykylin@gmail.com>
Subject: Re: misc questions about the device&driver arch
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On 11/6/05, John Baldwin <jhb@freebsd.org> wrote:
>
>
> No, FreeBSD doesn't currently do what this decribes yet.  It would be
> possible
> to do it by adding a new device_pause() method that drivers would be
> required
> to implement while the resources were shuffled around though and possibly
> a
> device_unpause() method so that they could update their state if their
> resources were changed while the device was paused.


Commenting specifically on this little nugget, this sounds like a boon to
someone that might try and implement a suspend to disk system in the kernel.