From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Henningsson Subject: Re: [pulseaudio-discuss] alsa ucm in pulseaudio Date: Fri, 14 Oct 2011 12:00:54 +0200 Message-ID: <4E980856.4040507@canonical.com> References: <4E97D81E.4080607@canonical.com> <4E97F964.4080701@canonical.com> <20111014093959.GA2966@opensource.wolfsonmicro.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from youngberry.canonical.com (youngberry.canonical.com [91.189.89.112]) by alsa0.perex.cz (Postfix) with ESMTP id 5C44A24407 for ; Fri, 14 Oct 2011 12:01:00 +0200 (CEST) In-Reply-To: <20111014093959.GA2966@opensource.wolfsonmicro.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: Mark Brown 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 10/14/2011 11:39 AM, Mark Brown wrote: > On Fri, Oct 14, 2011 at 10:57:08AM +0200, David Henningsson wrote: >> 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. Could you elaborate on this, i e specify constraints for Devices and Modifiers, if any? E g, would UCM allow for three active Devices and four active Modifiers, all resulting in seven independent PCM streams running concurrently? Or are there constraints in that e g all Devices and/or Modifiers must share the same PCM stream? -- David Henningsson, Canonical Ltd. http://launchpad.net/~diwic