From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753859Ab1GVKRX (ORCPT ); Fri, 22 Jul 2011 06:17:23 -0400 Received: from lucidpixels.com ([72.73.18.11]:45477 "EHLO lucidpixels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753662Ab1GVKRW (ORCPT ); Fri, 22 Jul 2011 06:17:22 -0400 Date: Fri, 22 Jul 2011 06:17:21 -0400 (EDT) From: Justin Piszcz To: Clemens Ladisch cc: linux-kernel@vger.kernel.org Subject: Re: 2.6.39.2: alsa question: usb sound/card shows up as mixer1/audio1? In-Reply-To: <4E292F01.1040400@ladisch.de> Message-ID: References: <4E292F01.1040400@ladisch.de> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 22 Jul 2011, Clemens Ladisch wrote: > Justin Piszcz wrote: > > I bought two of these but they are actually different devices, on one host > > it works ok, on the other, I get this: > > ... > > $ cat /proc/asound/cards > > 1 [Device ]: USB-Audio - C-Media USB Audio Device > > C-Media USB Audio Device at usb-0000:00:1d.7-2.4, full speed > > > > On the working host: > > $ cat /proc/asound/cards > > 0 [Device ]: USB-Audio - USB PnP Sound Device > > C-Media Electronics Inc. USB PnP Sound Device at usb-0000:00:1d.7-2.4, full spe > > > > Any clue why one is mapped to [1] and the other [0], where the one that is > > [0] works properly and the [1] does not? > > Some distributions configure USB devices to not load at index 0 to > prevent conflicts with the primary PCI sound card. Have a look into > /etc/modprobe.d/. > > > Regards, > Clemens > Hi, That was it, thanks. Justin.