From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: Suspending SCSI devices and buses Date: Wed, 18 Aug 2004 21:42:27 +0100 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <20040818214227.A2616@infradead.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from imladris.demon.co.uk ([193.237.130.41]:45318 "EHLO phoenix.infradead.org") by vger.kernel.org with ESMTP id S267650AbUHRUmf (ORCPT ); Wed, 18 Aug 2004 16:42:35 -0400 Content-Disposition: inline In-Reply-To: ; from stern@rowland.harvard.edu on Wed, Aug 18, 2004 at 04:36:53PM -0400 List-Id: linux-scsi@vger.kernel.org To: Alan Stern Cc: SCSI development list On Wed, Aug 18, 2004 at 04:36:53PM -0400, Alan Stern wrote: > How does a host driver tell the SCSI core that an adapter is being > suspended (and hence the core needs to suspend all the devices attached to > that adapter)? Ditto for resume. > > There doesn't appear to be any way to do it. The scsi_bus_type and > various driver structures don't contain a "suspend" entry. Please read through the "[PATCH] SCSI midlayer power management" thread on lkml and linux-scsi from last week.