From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: [pulseaudio-discuss] alsa ucm in pulseaudio Date: Fri, 14 Oct 2011 10:39:59 +0100 Message-ID: <20111014093959.GA2966@opensource.wolfsonmicro.com> References: <4E97D81E.4080607@canonical.com> <4E97F964.4080701@canonical.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from opensource.wolfsonmicro.com (opensource.wolfsonmicro.com [80.75.67.52]) by alsa0.perex.cz (Postfix) with ESMTP id 55612243E2 for ; Fri, 14 Oct 2011 11:40:01 +0200 (CEST) Content-Disposition: inline In-Reply-To: <4E97F964.4080701@canonical.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: David Henningsson Cc: alsa-devel@alsa-project.org, linaro-dev@lists.linaro.org, General PulseAudio Discussion , Colin Guthrie , Feng Wei , Liam Girdwood List-Id: alsa-devel@alsa-project.org On Fri, Oct 14, 2011 at 10:57:08AM +0200, David Henningsson wrote: > There is also the "Use Case" concept in UCM, Is there always exactly > one verb for every use case? If not, one might wonder if "Use Case" > or "Verb" is what should correspond to the "Profile" concept. Yes, pretty much. > As for ports, this again depends on what is mutually exclusive and > what could be used in parallel, I vaguely remember "Modifiers" as > something that could be used in parallel with existing streams, if > so, they need to be separate sinks/sources. Modifiers and Devices can both be used concurrently. > Hmm, for every sink/source, there can only be one active port at a > time. Also, ports on the same sink/source can be changed on the fly > without restarting the stream. Does this fit with the description of > a UCM "Device"? Pretty much.