From mboxrd@z Thu Jan 1 00:00:00 1970 From: vichy Subject: Auto suspend not working on usb hid devices Date: Sun, 11 Jan 2015 21:23:54 +0800 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: Received: from mail-qg0-f42.google.com ([209.85.192.42]:53190 "EHLO mail-qg0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750863AbbAKNXz (ORCPT ); Sun, 11 Jan 2015 08:23:55 -0500 Received: by mail-qg0-f42.google.com with SMTP id q108so14663970qgd.1 for ; Sun, 11 Jan 2015 05:23:55 -0800 (PST) Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: linux-pm@vger.kernel.org hi all: I list below environment I have that autosuspend seems doesn't work on my platform. 1. kernel version 3.10.30 2. compile kernel with CONFIG_PM_RUNTIME=y 3. "echo 'rpm:rpm_suspend' > set_event" 4. insert hid devices and "echo auto > /sys/bus/usb/devices/6-1/power/control" 5. there is no any usb related runtime suspend output in trace. Did I miss any kernel configuration to let it work? Or where is the proper debug entry I can check why rpm_suspend isn't been called on my system? appreciate your help in advance,