From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Mack Subject: Re: USB midi support for KAOSS pad Date: Tue, 25 May 2010 00:54:12 +0200 Message-ID: <20100524225412.GR30801@buzzloop.caiaq.de> References: <20100524153324.GL30801@buzzloop.caiaq.de> <20100524205319.GP30801@buzzloop.caiaq.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from buzzloop.caiaq.de (buzzloop.caiaq.de [212.112.241.133]) by alsa0.perex.cz (Postfix) with ESMTP id 649D310385C for ; Tue, 25 May 2010 00:54:42 +0200 (CEST) Content-Disposition: inline In-Reply-To: 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: Pedro Ferreira Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org On Tue, May 25, 2010 at 12:34:03AM +0200, Pedro Ferreira wrote: > > And here, the device is disconnected from USB, but I doubt that is > > related to the driver stack. The only thing I can currently think of is > > that the device draws too much power at this point, and a voltage > > brown-out causes the device to reset. Can you try a powered hub, or is > > this device powered by an external supply anyway? > > It's got its own power supply :) > > > Did you successfully > > use it on the _same_ hardware under Windows? > > Haven't tried... I don't have windows on this machine :/ Could you try to temporarily disable the snd-usb-audio driver (move the module away or build a kernel without support for it) and then see whether the mass storage function works stable? And then the other way around - disable USB mass storage and try the audio function only. Maybe that can give some hint. Daniel