From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick Shirkey Subject: Re: Quattro MIDI Date: Wed, 23 Oct 2002 21:29:07 +0900 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: <3DB69613.5020309@boosthardware.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from www7.networkshosting.com (www7.networkshosting.com [66.96.128.106]) by alsa.alsa-project.org (8.9.3/8.9.3/SuSE Linux 8.9.3-0.1) with SMTP id OAA04183 for ; Wed, 23 Oct 2002 14:30:19 +0200 Errors-To: alsa-devel-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: Takashi Iwai Cc: Clemens Ladisch , ALSA development List-Id: alsa-devel@alsa-project.org Takashi Iwai wrote: > At Wed, 23 Oct 2002 09:37:31 +0200 (METDST), > Clemens Ladisch wrote: > >>Takashi Iwai wrote: >> >>>Clemens Ladisch wrote: >>> >>>>It seems the USB subsystem only loads the first id_table entry it finds >>>>for each interface. As a quick fix, remove the Quattro entry from >>>>usbquirks.h, but I'm going to write a patch to use both pcm and MIDI. >>> >>>ok, i'll remove it. >> >>The Quattro id_table entry matches both PCM and MIDI interfaces because I >>removed the interface class from most entries nine days ago. I did this >>because my Roland SC-8820 didn't hotplug because the kernel didn't pass >>the interface class to the hotplug scripts because the device class isn't >>zero. However, devices with different interfaces do have device class zero >>(well, I hope they do :), so using the interface class for matching >>shouldn't prevent hotplugging for these devices. >> >>This patch adds interface class matching for some devices with both PCM >>and MIDI interfaces. > > > thanks! > committed to cvs now. > I haven't tested this patch yet but from last nights cvs I can report that the quattro is giving much better results while using jack. If I run with lowlat and all the options for latency control I can get a pure sine wave from ecasound. Alsaplayer also performs much better. I will investigate more obviously :) -- Patrick Shirkey - Boost Hardware Ltd. For the discerning hardware connoisseur Http://www.boosthardware.com Http://www.djcj.org - The Linux Audio Users guide ======================================== "Um...symbol_get and symbol_put... They're kindof like does anyone remember like get_symbol and put_symbol I think we used to have..." - Rusty Russell in his talk on the module subsystem ------------------------------------------------------- This sf.net emial is sponsored by: Influence the future of Java(TM) technology. Join the Java Community Process(SM) (JCP(SM)) program now. http://ads.sourceforge.net/cgi-bin/redirect.pl?sunm0002en