From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Sakamoto Subject: Re: About 'SNDRV_PCM_CLASS_MULTI' for devices with multi-channels Date: Thu, 20 Feb 2014 11:28:48 +0900 Message-ID: <53056860.7090500@sakamocchi.jp> References: <5304C64D.3090400@sakamocchi.jp> <530508BB.6060802@canonical.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-pd0-f196.google.com (mail-pd0-f196.google.com [209.85.192.196]) by alsa0.perex.cz (Postfix) with ESMTP id 79090265607 for ; Thu, 20 Feb 2014 03:29:04 +0100 (CET) Received: by mail-pd0-f196.google.com with SMTP id y10so563969pdj.11 for ; Wed, 19 Feb 2014 18:29:03 -0800 (PST) In-Reply-To: <530508BB.6060802@canonical.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: David Henningsson , alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Hi David, (My message was not delivered by ALSA's mailman...) Again all, >> I have two questions about the usage of this macro. >> >> Should I use this macro for new drivers which I'm working for?' >> http://mailman.alsa-project.org/pipermail/alsa-devel/2014-January/071820.html >> >> >> My drivers support some firewire devices, which is desinged for >> studio-use and have many channels. Its combination of channels are not >> designed for surround sound like 5.1ch. >> >> Just judging from its name, 'SNDRV_PCM_CLASS_MULTI', I should use this. >> But there are no drivers which use this macro in current tree, against >> my expectation that some drivers (ICE1712-pro, RME9652, 6fire usb and so >> on) should use this macro. >> >> Are there any reasons? In current tree, there are no drivers which uses this macro. As long as I investigated in ftp server, this macro is firstly added in ALSA 0.9.0beta1 (2001/02/21). So this macro has been ignored over 10 years... Regards Takashi Sakamoto o-takashi@sakamocchi.jp