From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.free-electrons.com ([88.190.12.23]:49933 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752171Ab1IXSE2 convert rfc822-to-8bit (ORCPT ); Sat, 24 Sep 2011 14:04:28 -0400 Date: Sat, 24 Sep 2011 20:04:18 +0200 From: Thomas Petazzoni To: "Sri Deevi" Cc: "Devin Heitmueller" , "linux-media@vger.kernel.org" , "Maxime Ripard" Subject: Re: cx231xx: DMA problem on ARM Message-ID: <20110924200418.64cdc73f@skate> In-Reply-To: <34B38BE41EDBA046A4AFBB591FA311320506479CF0@NBMBX01.bbnet.ad> References: <20110921135604.64363a2e@skate> <20110922164508.395c2900@skate> <20110922172929.16df967f@skate> <20110923140404.5816c056@skate> <34B38BE41EDBA046A4AFBB591FA311320506479CF0@NBMBX01.bbnet.ad> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-media-owner@vger.kernel.org List-ID: Hello Srinivasa, Le Fri, 23 Sep 2011 05:26:07 -0700, "Sri Deevi" a écrit : > Do you have USB Analyzer (hardware) ? If so, Is it possible to take a > trace and compare it with x86 trace to see for any obvious > differences ? Unfortunately, I don't have an hardware USB analyzer to do such a comparison. > I am actually confused why set interface fails in the > log. The device is very simple one with no firmware and is totally > controlled by hardware itself. So far we had never seen any issue, > though never tried with any other ARM based devices. Not sure if > anybody had tried already. Seems like nobody ever tried to use this device on an ARM platform, unfortunately. Regards, Thomas -- Thomas Petazzoni, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com