From mboxrd@z Thu Jan 1 00:00:00 1970 From: Colin Fletcher Subject: Can't connect to MIDI output of Edirol UA-1000 Date: Tue, 18 Sep 2012 15:05:10 +0100 Message-ID: <50587F96.8080005@googlemail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-we0-f179.google.com (mail-we0-f179.google.com [74.125.82.179]) by alsa0.perex.cz (Postfix) with ESMTP id 1D0682650B0 for ; Tue, 18 Sep 2012 16:03:52 +0200 (CEST) Received: by weyx10 with SMTP id x10so4289963wey.38 for ; Tue, 18 Sep 2012 07:03:51 -0700 (PDT) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Hello all, I hope this is the right place to report this and ask for help: if not, I'd be glad of a pointers to any more appropriate forum. I've just recently noticed that connections to the MIDI output of my Edirol UA-1000 fail when using the snd_ua101 driver in recent kernels. Although the port is listed, connections to it fail from all the software I've tried: qjackctl, a2jmidid and aconnect all fail to connect. aconnect simply reports "Connection failed (Input/output error)"; a2jmidid -e says "ERROR: a2j_port_create: snd_seq_connect_to() for 20:0 failed with error -5"; and qjackctl reports no error but refuses to make the connection. I've observed the problem in stable kernels 3.0.39 and 3.4.11; it works as expected when booted into a 2.6.32 kernel, where the snd_usb_audio driver is used for the UA-1000. Other USB MIDI devices appear to work fine with the newer kernels. Incidentally, I also noticed that the 'Control' MIDI in & out of the UA-1000 no longer appear when using snd_ua101, but I don't think this is related, since changing the values of midi_ep.out_cables and midi_ep.in_cables to 3 in the ua101_probe() function in sound/usb/misc/ua101.c brings the control in & out back, but I'm still unable to connect the outputs. Any help, suggestions, patches or requests for more details gratefully received! Thank you, Colin Fletcher.