Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755980AbaJUQJF (ORCPT ); Tue, 21 Oct 2014 12:09:05 -0400 Received: from mail-qa0-f42.google.com ([209.85.216.42]:40591 "EHLO mail-qa0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755461AbaJUQJD (ORCPT ); Tue, 21 Oct 2014 12:09:03 -0400 MIME-Version: 1.0 In-Reply-To: References: <543FB374.8020604@metafoo.de> <543FC3CD.8050805@osg.samsung.com> <543FD1EC.5010206@osg.samsung.com> <543FD892.6010209@osg.samsung.com> <54467EFB.7050800@xs4all.nl> Date: Tue, 21 Oct 2014 12:08:59 -0400 Message-ID: Subject: Re: [alsa-devel] [PATCH v2 5/6] sound/usb: pcm changes to use media token api From: Devin Heitmueller To: Takashi Iwai Cc: Hans Verkuil , Shuah Khan , Lars-Peter Clausen , Mauro Carvalho Chehab , Andrew Morton , Greg Kroah-Hartman , Antti Palosaari , "olebowle@gmx.com" , "ramakrmu@cisco.com" , "sakari.ailus@linux.intel.com" , Laurent Pinchart , perex@perex.cz, prabhakar.csengg@gmail.com, Tim Gardner , Sander Eikelenboom , Linux Kernel , alsa-devel@alsa-project.org, Linux Media Mailing List Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Sorry, I'm not convinced by that. If the device has to be controlled > exclusively, the right position is the open/close. Otherwise, the > program cannot know when it becomes inaccessible out of sudden during > its operation. I can say that I've definitely seen cases where if you configure a device as the "default" capture device in PulseAudio, then pulse will continue to capture from it even if you're not actively capturing the audio from pulse. I only spotted this because I had a USB analyzer on the device and was dumbfounded when the ISOC packets kept arriving even after I had closed VLC. Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com -- 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/