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Date: Fri, 15 Aug 2003 09:30:05 -0700 (PDT)
From: Patrick Mochel <mochel@osdl.org>
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To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
cc: "Eric W. Biederman" <ebiederm@xmission.com>, Greg KH <greg@kroah.com>,
       linux-kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] call drv->shutdown at rmmod
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> There is a problem of semantics here. Is shutdown() supposed to shutdown
> the hardware device (ie. low power) or just the driver ? If yes, then
> it's duplicate of the PM callbacks. My understanding of the shutdown()
> callback is that it was more than "stop driver activity, put device into
> idle state" to prepare for a shutdown/reboot (though we do also sleep
> IDE drives in this case, but this is because of that nasty cache flush
> issue).

You have it right - ->shutdown() is only supposed to queisce the device. 


	Pat