Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764100AbXF1DmG (ORCPT ); Wed, 27 Jun 2007 23:42:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759410AbXF1Dlz (ORCPT ); Wed, 27 Jun 2007 23:41:55 -0400 Received: from wa-out-1112.google.com ([209.85.146.183]:48887 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757914AbXF1Dly (ORCPT ); Wed, 27 Jun 2007 23:41:54 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references:x-google-sender-auth; b=SCywa8jIVmNm/sWPwgWVfcwyO/Oj7QMHBwwtYab9czmqORrr65EdCTPyNJvgVMBJCvccTW0NmRkZ+EokmmGBo8L5ic5IwvfY+UV3ihAG8P/ZsRKm1O2+slchXA8x7/g+vj3l1Cr1HLkgtpJxS3d5u7L36tjV4o95aMsh8kxvH08= Message-ID: <75b66ecd0706272041r2e33241djf2280d1749e8c809@mail.gmail.com> Date: Wed, 27 Jun 2007 23:41:54 -0400 From: "Lee Revell" To: "Andreas Hartmetz" Subject: Re: Is it time for remove (crap) ALSA from kernel tree ? Cc: linux-kernel@vger.kernel.org In-Reply-To: <200706262239.05070.ahartmetz@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <200706262239.05070.ahartmetz@gmail.com> X-Google-Sender-Auth: c1bb0accc9f6a26a Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1093 Lines: 23 On 6/26/07, Andreas Hartmetz wrote: > Why not put the whole sound system in userland? It has been done before. Sound > is just not performance critical at all and it's almost never mission > critical. There are dozens of companies selling Linux powered professional audio gear, multiple pro audio centric distros, and hundreds of serious free software audio apps. I suspect these developers and their users would disagree. I agree with you about userland drivers but at minimum this would require merging the -rt kernel patches, otherwise the latency/jitter will be too high to do anything but toy desktop sounds, then you need a mergeable mechanism for doing DMA and interrupt handling in userspace. It has been attempted before but never evolved to the point where you could drive a complex device like the emu10k1. Lee - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/