From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Sakamoto Subject: Re: [PATCH 06/17] firewire-lib: Add support for MIDI capture/playback Date: Wed, 27 Nov 2013 02:10:46 +0900 Message-ID: <5294D616.9020000@sakamocchi.jp> References: <1385186884-8259-1-git-send-email-o-takashi@sakamocchi.jp> <1385186884-8259-7-git-send-email-o-takashi@sakamocchi.jp> <52936C6F.1030200@ladisch.de> <52948E38.4090601@sakamocchi.jp> <52949BD5.6010601@ladisch.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: Received: from smtp303.phy.lolipop.jp (smtp303.phy.lolipop.jp [210.157.22.87]) by alsa0.perex.cz (Postfix) with ESMTP id 6BD0E2610A1 for ; Tue, 26 Nov 2013 18:10:55 +0100 (CET) In-Reply-To: <52949BD5.6010601@ladisch.de> 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: Clemens Ladisch , tiwai@suse.de, perex@perex.cz Cc: alsa-devel@alsa-project.org, linux1394-devel@lists.sourceforge.net, ffado-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org (Nov 26 2013 22:02), Clemens Ladisch wrote: > Takashi Sakamoto wrote: >> In my understanding of RP-027: >> 'MIDI data stream' is a data stream to/from each MIDI ports >> 'MPX-MIDI data channel' is a data channel for each 'MIDI data stream' >> 'MIDI comformant data channel' has multiplexed 8 'MPX-MIDI data channel's > > Yes. OK. Here I use 'midi_channels' as 'MIDI comformant data channels' for struct amdtp_stream. >> /* >> * This module supports maximum 2 MIDI comformant data channels. > > Are there devices that use more than one? I know nothing. As long as I know, in BeBoB and Fireworks models, maximum number of 'MIDI comformant data channel' is 1 and 'maximum number of MPX-MIDI data channel' is 2. Should I limit the number of MIDI comformant data channel by 1? Thank you Takashi Sakamoto