Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751105AbWATRlN (ORCPT ); Fri, 20 Jan 2006 12:41:13 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751118AbWATRlN (ORCPT ); Fri, 20 Jan 2006 12:41:13 -0500 Received: from arkady.gaya.sk ([62.168.75.2]:22998 "EHLO arkady.gaya.sk") by vger.kernel.org with ESMTP id S1751105AbWATRlN (ORCPT ); Fri, 20 Jan 2006 12:41:13 -0500 From: Peter Zubaj To: alsa-devel@lists.sourceforge.net Subject: Re: [Alsa-devel] RFC: OSS driver removal, a slightly different approach Date: Fri, 20 Jan 2006 18:44:29 +0100 User-Agent: KMail/1.9.1 Cc: Jan Engelhardt , Takashi Iwai , Adrian Bunk , linux-kernel@vger.kernel.org, perex@suse.cz References: <20060119174600.GT19398@stusta.de> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200601201844.29873.pzad@pobox.sk> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1282 Lines: 28 On Friday 20 January 2006 17:30, Jan Engelhardt wrote: > >> >If I understand alsa - oss emulation correctly, I think, this will be > >> > not fixed soon (my opinion - never). This is too much work for too > >> > little gain. > >> > >> On that way, I'd like to inquiry something: > >> I have a card that works with the snd-cs46xx module. > >> With the OSS emulation (/dev/dsp), I can only output 2 channels, and the > >> other two must be sent to /dev/adsp. Is this intended? Would not it be > >> easier to make /dev/dsp allow receiving an ioctl setting 4 channels? > > > >This is exactly like the case of emu10k1. The chip supports only > >2-channel stereo streams. If you need a 4-channel interleaved stream, > >you have to merge the data in two individual streams to a single > >4-channel stream on software. Currently, this isn't handled in ALSA > >kernel-space OSS emulation. > > Ah, so http://alphagate.hopto.org/quad_dsp/ which I had created > is The Right Thing? This will work for your card, but not for emu10k1. Peter Zubaj - 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/