From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clemens Ladisch Subject: Re: UAC2 defaults to max sampling rate Date: Wed, 23 May 2012 11:18:10 +0200 Message-ID: <4FBCAB52.8030904@ladisch.de> References: <4FBC98FC.6000200@freemail.gr> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from out5-smtp.messagingengine.com (out5-smtp.messagingengine.com [66.111.4.29]) by alsa0.perex.cz (Postfix) with ESMTP id C58EE103F95 for ; Wed, 23 May 2012 11:18:11 +0200 (CEST) In-Reply-To: <4FBC98FC.6000200@freemail.gr> 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: adelias Cc: alsa-devel@alsa-project.org, zonque@gmail.com List-Id: alsa-devel@alsa-project.org adelias wrote: > I'm running ALSA 1.0.23 and kernel 2.6.37 on ARM. The UAC2 audio device > is the XMOS reference board. > > This is what I'm observing. As soon as the XMOS board is plugged in to > the USB port, the display on my DAC indicates that is has locked at > 192kHz which is the maximum sampling rate supported by the XMOS. This is an as-yet unfixed bug in the driver. (The usb_set_interface call in snd_usb_add_endpoint is completely superfluous.) Regards, Clemens