From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Mack Subject: Re: Fwd: Solved Hercules RMX2 Date: Wed, 17 Apr 2013 15:36:27 +0200 Message-ID: <516EA55B.90001@gmail.com> References: <516D5BC0.9020204@gmail.com> <516D6FA9.3020609@gmail.com> <516D76CC.7090408@gmail.com> <516DA527.1070806@gmail.com> <516DA58B.3060207@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Received: from mail-bk0-f47.google.com (mail-bk0-f47.google.com [209.85.214.47]) by alsa0.perex.cz (Postfix) with ESMTP id 68F1D26164D for ; Wed, 17 Apr 2013 15:36:18 +0200 (CEST) Received: by mail-bk0-f47.google.com with SMTP id ik5so760982bkc.34 for ; Wed, 17 Apr 2013 06:36:18 -0700 (PDT) In-Reply-To: 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: =?ISO-8859-1?Q?Daniel_Sch=FCrmann?= Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Hi Daniel, On 17.04.2013 08:32, Daniel Sch=FCrmann wrote: > thank your advice! > = > I am not a Hercules developer, I am developer of the Mixxx DJ Software and > I am just trying to make > the thing work! > = > I have just read within the USB 2.0 speck to find out if there are specif= ic > timeouts to deal with. > = > I have found: > =A7 9.2.6.4 Standard Device Requests > = > If I understand it correct, there is a 5-second limit for storing data in= to > the device. > I think changing the sample rate is such a operation. > = > So what about changing the Limit to 5000 ms for all "Set requests" > bmRequest =3D 21. > See Audio20 =A7 5.2.2 > All other timeouts might be reduced to 500 ms but I would leave them > untouched at 1000 ms , just in case. Ok, can you cook a patch which sets the limit parameter usb_control_msg() to 5000 for SET request but leaves the former default value of 1000 in other cases? The patch should be all local to snd_usb_ctl_msg() then. Thanks, Daniel