From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Clemens Ladisch" Subject: Re: [usb-audio] M-Audio FastTrack Pro giving invalid sample rates Date: Wed, 28 Nov 2007 10:27:51 +0100 Message-ID: <1196242071.6837.1223642425@webmail.messagingengine.com> References: <474CBC60.9090408@trn.iki.fi> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Received: from out1.smtp.messagingengine.com (out1.smtp.messagingengine.com [66.111.4.25]) by alsa0.perex.cz (Postfix) with ESMTP id B793E24B0F for ; Wed, 28 Nov 2007 10:27:53 +0100 (CET) Content-Disposition: inline In-Reply-To: <474CBC60.9090408@trn.iki.fi> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: =?iso-8859-1?Q?Lasse=20K=E4rkk=E4inen?= , alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Lasse K=E4rkk=E4inen wrote: > ALSA seems to think that the card supports a wide range of sampling > rates, but it does not manage to set them in practice. I do not know > which is faulty, ALSA rate setting or the USB info sent by the device, > but the problem needs to be fixed. This device, and some others from M-Audio, do not really conform to the USB Audio specification; there are interdependencies between the playback, capture and digital interfaces that are not described in the USB descriptors. These devices will not be supported completely unless a separate driver is written for them. Regards, Clemens