From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clemens Ladisch Subject: Re: [RFC][PATCH 00/15 v4] OXFW driver, a succesor to firewire-speakers Date: Sun, 10 Aug 2014 17:54:37 +0200 Message-ID: <53E795BD.1070100@ladisch.de> References: <1399991272-5807-1-git-send-email-o-takashi@sakamocchi.jp> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from dehamd003.servertools24.de (dehamd003.servertools24.de [31.47.254.18]) by alsa0.perex.cz (Postfix) with ESMTP id C8A3E2610AA for ; Sun, 10 Aug 2014 17:55:40 +0200 (CEST) In-Reply-To: <1399991272-5807-1-git-send-email-o-takashi@sakamocchi.jp> 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: Takashi Sakamoto Cc: alsa-devel@alsa-project.org, stefanr@s5r6.in-berlin.de, fenlason@redhat.com, ffado-devel@lists.sf.net, linux1394-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org Takashi Sakamoto wrote: > I have an issue for Griffin Firewave. > > This device can handle AV/C Stream Format Information command and > driver can get to know stream formations via the command. > > According to these responses, supported formations are: > Input Stream to device: > Rate PCM MIDI > 32000 6 0 > 44100 6 0 > 48000 6 0 > 96000 6 0 > 32000 2 0 > 44100 2 0 > 48000 2 0 > > But current 'firewire-speakers' has PCM constraints below: > - 6ch at 32/44.1/48/96 kHz > - 2ch at 48/96 kHz > http://mailman.alsa-project.org/pipermail/alsa-devel/2014-February/073562.html > > So this OXFW driver may lost a support for 2ch/96.0kHz for FireWave > and gain 2ch/32.0kHz and 2ch/44.1kHz. > > I don't know exactly the reason of these gaps. The old driver configured nothing but the rate. Is there any mechanism to set the stream format? Regards, Clemens