From owner-freebsd-multimedia@FreeBSD.ORG Wed Sep 2 15:31:59 2009 Return-Path: Delivered-To: freebsd-multimedia@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7526A1065672; Wed, 2 Sep 2009 15:31:59 +0000 (UTC) (envelope-from avg@icyb.net.ua) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id 6EE838FC12; Wed, 2 Sep 2009 15:31:58 +0000 (UTC) Received: from odyssey.starpoint.kiev.ua (alpha-e.starpoint.kiev.ua [212.40.38.101]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id SAA08831; Wed, 02 Sep 2009 18:31:57 +0300 (EEST) (envelope-from avg@icyb.net.ua) Message-ID: <4A9E8FEC.7010005@icyb.net.ua> Date: Wed, 02 Sep 2009 18:31:56 +0300 From: Andriy Gapon User-Agent: Thunderbird 2.0.0.22 (X11/20090724) MIME-Version: 1.0 To: Alexander Motin References: <4A980B19.4090801@icyb.net.ua> <4A9815F3.9010601@FreeBSD.org> <4A9E40B9.2050004@icyb.net.ua> <4A9E428E.7010401@FreeBSD.org> In-Reply-To: <4A9E428E.7010401@FreeBSD.org> X-Enigmail-Version: 0.95.7 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: freebsd-multimedia@FreeBSD.org Subject: Re: forcing two channel output X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Multimedia discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Sep 2009 15:31:59 -0000 on 02/09/2009 13:01 Alexander Motin said the following: > > HDA controllers have limitations on number of data streams. You can see > it if boot with hw.snd.verbose=4. Usually there are 4 streams supported. > snd_hda allocates them statically now, one device - one data stream. So > you just could hit this limitation because of big number of devices. It > would be good to allocate streams dynamically on open, but it is not > implemented now. > Is this something that could tweak locally - bump some limit or slightly change some logic? What should I look for in the source code? -- Andriy Gapon