From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5C47FC4CEC7 for ; Sun, 15 Sep 2019 09:34:32 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B594820692 for ; Sun, 15 Sep 2019 09:34:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="no/ZL9lj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B594820692 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id D2AB715E4; Sun, 15 Sep 2019 11:33:39 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz D2AB715E4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1568540069; bh=R3rNbff8tWHOHAaAg4bW6yFX5bo8i4TXuQ+IxHeoNvg=; h=Date:From:To:In-Reply-To:References:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=no/ZL9ljkTq4ACi/C7bWlatOFUDUoLNXhP9ywhzr3pWJe7gqJly7dYeYDVr41w3ve rdTtvWykA02D+f5J1Mq2EDrqy3Q7XCaKi5jXpAmf20iQuINMdJ04IvooVRx7sDe+4k ohkbTbI4hYeuaWpdxlbw037I/gNVSHkNdNKp89mc= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 66C61F802DF; Sun, 15 Sep 2019 11:33:39 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id CE63FF80307; Sun, 15 Sep 2019 11:33:36 +0200 (CEST) Received: from mx1.suse.de (mx2.suse.de [195.135.220.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id BDDE1F801DA for ; Sun, 15 Sep 2019 11:33:34 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz BDDE1F801DA X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id F1243AE74; Sun, 15 Sep 2019 09:33:32 +0000 (UTC) Date: Sun, 15 Sep 2019 11:33:32 +0200 Message-ID: From: Takashi Iwai To: xinhui zhou In-Reply-To: References: <20190904164706.gwjbcywbj7emnwvr@localhost> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/25.3 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Cc: alsa-user@lists.sourceforge.net, alsa-devel@alsa-project.org Subject: Re: [alsa-devel] How to check ALSA version in Linux kernel X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" On Thu, 12 Sep 2019 17:42:37 +0200, xinhui zhou wrote: > > > > > Dear all, > > > > I am involved in a project which will use different kernel versions > along the way, first 4.14, 4.19, 5.3 etc. > > How can I know the differences in ALSA, besides comparing files ? > How to get the ALSA version in Linux kernel ? There is no "ALSA version" any longer in the kernel side. The protocol is kept in backward-compatible way, and a new protocol is checked via each protocol version number ioctl. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/alsa-devel