From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7D0AEC46464 for ; Mon, 13 Aug 2018 12:57:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3913921756 for ; Mon, 13 Aug 2018 12:57:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3913921756 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729855AbeHMPj0 (ORCPT ); Mon, 13 Aug 2018 11:39:26 -0400 Received: from mx2.suse.de ([195.135.220.15]:49076 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729393AbeHMPj0 (ORCPT ); Mon, 13 Aug 2018 11:39:26 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id B8D54AD57; Mon, 13 Aug 2018 12:57:14 +0000 (UTC) Message-ID: <1534164556.10953.2.camel@suse.com> Subject: Re: [Query] USB device autosuspend and its runtime usage count. From: Oliver Neukum To: Anshuman Gupta , linux-usb@vger.kernel.org Cc: linux-kernel@vger.kernel.org Date: Mon, 13 Aug 2018 14:49:16 +0200 In-Reply-To: <1534157102-29526-1-git-send-email-anshuman.gupta@intel.com> References: <1534146566.10070.5.camel@suse.com> <1534157102-29526-1-git-send-email-anshuman.gupta@intel.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.6 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mo, 2018-08-13 at 16:15 +0530, Anshuman Gupta wrote: > > All of its interfaces are in runtime suspend > > root@intel-Kabylake-Client-platform:# cat /sys/bus/usb/devices/1-5\:1.0/power/runtime_status > suspended > root@intel-Kabylake-Client-platform:# cat /sys/bus/usb/devices/1-5\:1.1/power/runtime_status > suspended > root@intel-Kabylake-Client-platform:# cat /sys/bus/usb/devices/1-5/power/runtime_active_kids > 0 Is the RESET_RESUME quirk set for this device? All children idle but the parent active is odd. Regards Oliver