From owner-freebsd-multimedia@FreeBSD.ORG Sat Mar 5 22:40:20 2005 Return-Path: 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 4FCAA16A4CE for ; Sat, 5 Mar 2005 22:40:20 +0000 (GMT) Received: from deluge.cc.mcgill.ca (deluge.CC.McGill.CA [132.206.27.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8D73943D1F for ; Sat, 5 Mar 2005 22:40:17 +0000 (GMT) (envelope-from mat@cnd.mcgill.ca) Received: from mailscan2.cc.mcgill.ca (mailscan2.CC.McGill.CA [132.216.77.249]) by deluge.cc.mcgill.ca (8.12.11/8.12.3) with ESMTP id j25MeGWh003452 for ; Sat, 5 Mar 2005 17:40:16 -0500 (EST) Received: from cube.cnd.mcgill.ca (cube.CND.McGill.CA [132.216.25.196]) j25Me6dK026805 for ; Sat, 5 Mar 2005 17:40:06 -0500 (EST) Received: from localhost.localdomain (acid.cnd.mcgill.ca [132.216.11.151]) by cube.cnd.mcgill.ca (8.12.11/8.12.11) with ESMTP id j25Me5Gr016604 for ; Sat, 5 Mar 2005 17:40:06 -0500 Received: from localhost.localdomain (acid [127.0.0.1])j25Me5HY007596 for ; Sat, 5 Mar 2005 17:40:05 -0500 Received: (from mat@localhost) by localhost.localdomain (8.12.11/8.12.11/Submit) id j25Me5O6007595 for freebsd-multimedia@freebsd.org; Sat, 5 Mar 2005 17:40:05 -0500 Date: Sat, 5 Mar 2005 17:40:05 -0500 From: Mathew Kanner To: freebsd-multimedia@freebsd.org Message-ID: <20050305224005.GC4237@cnd.mcgill.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2i Organization: I speak for myself, operating in Montreal, CANADA Subject: uaudio patch, configurable buffer size X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Multimedia discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 05 Mar 2005 22:40:20 -0000 Hi All, I couldn't use my usb device because the default buffer size (16*1024 bytes) was too much to be allocated (dma changes that happened a while ago). The following is a patch to make it a tunable: http://www.cnd.mcgill.ca/~mat/uaudio-HEAD-buffersize-tunable.diff.gz This is not for RELENG_5. If you want it there, you'll have to catch-up with the work the Julian did in December first: http://www.cnd.mcgill.ca/~mat/usb-RELENG5-to-HEAD-Mar05-2005.diff.gz For both patches you'll have to: cd /usr/src patch < /path/to/unzipped.diff And then rebuild your snd_uaudio modules cd cd /usr/src/sys/modules/sound/driver/uaudio/ make make install Would love to hear if this works for anybody else, --Mat