From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: [patch 2/2] libata: power off unused ports Date: 28 Mar 2008 08:43:40 +0100 Message-ID: <87fxubl2dv.fsf@basil.nowhere.org> References: <20080325221646.567639335@intel.com> <20080325152813.0b34761f@appleyard> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from smtp-out02.alice-dsl.net ([88.44.60.12]:18465 "EHLO smtp-out02.alice-dsl.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751432AbYC1Hnp (ORCPT ); Fri, 28 Mar 2008 03:43:45 -0400 In-Reply-To: <20080325152813.0b34761f@appleyard> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Kristen Carlson Accardi Cc: jeff@garzik.org, linux-ide@vger.kernel.org, arjan@linux.intel.com Kristen Carlson Accardi writes: > If a port doesn't support hot plug, there's no reason to keep the phy powered > on unoccupied ports. Would it be possible to add some writable sysfs attribute for this too? A lot of ports support hot plug, but the users knows they will never actually hot plug anything there. Exposing it to sysfs would make sense so someone could make a conscious decision to save these watts by sacrifying hotplug-support. -Andi