From owner-freebsd-multimedia@FreeBSD.ORG Wed Aug 31 20:24:05 2005 Return-Path: X-Original-To: freebsd-multimedia@freebsd.org Delivered-To: freebsd-multimedia@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 25ED816A41F for ; Wed, 31 Aug 2005 20:24:05 +0000 (GMT) (envelope-from Alexander@Leidinger.net) Received: from www.ebusiness-leidinger.de (jojo.ms-net.de [84.16.236.246]) by mx1.FreeBSD.org (Postfix) with ESMTP id 83CBE43D45 for ; Wed, 31 Aug 2005 20:24:03 +0000 (GMT) (envelope-from Alexander@Leidinger.net) Received: from Andro-Beta.Leidinger.net (p54A5FE28.dip.t-dialin.net [84.165.254.40]) (authenticated bits=0) by www.ebusiness-leidinger.de (8.13.1/8.13.1) with ESMTP id j7VKEtmv027290; Wed, 31 Aug 2005 22:15:06 +0200 (CEST) (envelope-from Alexander@Leidinger.net) Received: from Magellan.Leidinger.net (Magellan.Leidinger.net [192.168.1.1]) by Andro-Beta.Leidinger.net (8.13.3/8.13.3) with ESMTP id j7VKN9hR053910; Wed, 31 Aug 2005 22:23:09 +0200 (CEST) (envelope-from Alexander@Leidinger.net) Date: Wed, 31 Aug 2005 22:23:09 +0200 From: Alexander Leidinger To: Clemens Ladisch Message-ID: <20050831222309.112e3e5c@Magellan.Leidinger.net> In-Reply-To: References: <20050831115215.6fx8wellc0cs8s8g@netchild.homeip.net> X-Mailer: Sylpheed-Claws 1.9.13 (GTK+ 2.6.9; i386-portbld-freebsd7.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new Cc: freebsd-multimedia@freebsd.org Subject: Re: uaudio fullduplex on 5.4-RELEASE? 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, 31 Aug 2005 20:24:05 -0000 On Wed, 31 Aug 2005 13:41:57 +0200 (METDST) Clemens Ladisch wrote: > Alexander Leidinger wrote: > > Some USB chips have problems with fullduplex operation. AFAIK it's > > not known if it is a problem with our USB subsystem or not. > > Which chips? There are devices (some from Edirol and M-Audio) that do > not support full duplex with higher sample rates (and where this is > documented), but most should work just fine. I was talking about USB controllers, not about Audio chips. AFAIR there seems to be a problem with ohci controllers, while uhci controllers seems to work as expected. This may be a problem in the USB stack. Bye, Alexander. -- It is easier to fix Unix than to live with NT. http://www.Leidinger.net Alexander @ Leidinger.net GPG fingerprint = C518 BC70 E67F 143F BE91 3365 79E2 9C60 B006 3FE7