From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pierre-Louis Bossart Subject: Re: Is there a way to support TX master mode and RX slave mode? Date: Wed, 17 Jul 2019 11:02:05 -0500 Message-ID: <548bda36-b81f-1811-7969-e80e698ecfa3@linux.intel.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 5F7F6F800C2 for ; Wed, 17 Jul 2019 18:02:10 +0200 (CEST) In-Reply-To: Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" To: "S.j. Wang" , "alsa-devel@alsa-project.org" , Mark Brown List-Id: alsa-devel@alsa-project.org On 7/16/19 3:35 AM, S.j. Wang wrote: > Hi Experts > > Is there a way to support TX master mode but RX slave mode? It seems current .set_fmt only set same mode for TX and RX. good question if you are thinking of supporting the 6-pin versions of I2S interfaces with independent bit clock and frame sync on RX and TX Looking at the topology definition it could be that this mode needs to be handled with separate dailinks. Adding Mark in case he didn't see this question.