From mboxrd@z Thu Jan 1 00:00:00 1970 From: Aaron Lu Subject: Re: Discussion on device's runtime wake capability Date: Wed, 10 Oct 2012 08:55:46 +0800 Message-ID: <5074C792.1030109@intel.com> References: <5073C2D0.1080900@intel.com> <9718124.Sj45DoTPo2@vostro.rjw.lan> <20121009205723.GA12385@srcf.ucam.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from mga14.intel.com ([143.182.124.37]:16570 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755174Ab2JJAzw (ORCPT ); Tue, 9 Oct 2012 20:55:52 -0400 In-Reply-To: <20121009205723.GA12385@srcf.ucam.org> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Matthew Garrett Cc: "Rafael J. Wysocki" , Len Brown , Huang Ying , Zhang Rui , linux-acpi@vger.kernel.org On 10/10/2012 04:57 AM, Matthew Garrett wrote: > On Tue, Oct 09, 2012 at 10:48:58PM +0200, Rafael J. Wysocki wrote: > >> Why do you think so? How can you be sure that those resources are not needed >> to provide wakeup power to the device (or whatever generates the wakeup signal >> on its behalf))? > > Right. For instance, on some Thinkpads turning off the power resources > cuts power to the port entirely - there's no way to generate wakeups if > there's no 5V line... Thanks for the info, and I've a question. Are these ports run wake capable? i.e. do they have a _S0W object? -Aaron