Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756063AbbFBHsw (ORCPT ); Tue, 2 Jun 2015 03:48:52 -0400 Received: from cantor2.suse.de ([195.135.220.15]:44529 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753511AbbFBHsp (ORCPT ); Tue, 2 Jun 2015 03:48:45 -0400 Message-ID: <1433231270.1708.5.camel@suse.com> Subject: Re: [PATCH 1/2] Bluetooth: Add reset_resume function From: Oliver Neukum To: Laura Abbott Cc: Marcel Holtmann , Ming Lei , "David S. Miller" , Johan Hedberg , "Rafael J. Wysocki" , "Gustavo F. Padovan" , Alan Stern , Takashi Iwai , linux-bluetooth@vger.kernel.org, Linux Kernel Mailing List , USB list , netdev Date: Tue, 02 Jun 2015 09:47:50 +0200 In-Reply-To: <1433207682-15064-1-git-send-email-labbott@fedoraproject.org> References: <1433207682-15064-1-git-send-email-labbott@fedoraproject.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.12.11 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 777 Lines: 21 On Mon, 2015-06-01 at 18:14 -0700, Laura Abbott wrote: > Bluetooth devices off of some buses such as USB may lose power across > suspend/resume. When this happens, drivers may need to have the setup > function called again and behave differently than a cold power on. Yes, but what is the point? We use reset_resume() to retain some features of a device across a loss of power. If power is lost, all settings are gone and all connections are broken. So what is the difference compared to a plug out/in cycle? Regards Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/