Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751847Ab0BRG4T (ORCPT ); Thu, 18 Feb 2010 01:56:19 -0500 Received: from smtp-out002.kontent.com ([81.88.40.216]:54113 "EHLO smtp-out002.kontent.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751143Ab0BRG4S (ORCPT ); Thu, 18 Feb 2010 01:56:18 -0500 From: Oliver Neukum To: "Gadiyar, Anand" Subject: Re: USB mass storage and ARM cache coherency Date: Thu, 18 Feb 2010 07:56:14 +0100 User-Agent: KMail/1.12.2 (Linux/2.6.33-rc6-0.1-default; KDE/4.3.1; x86_64; ; ) Cc: Alan Stern , "Shilimkar, Santosh" , "Russell King - ARM Linux" , Catalin Marinas , Pavel Machek , Greg KH , Matthew Dharm , Sergei Shtylyov , Ming Lei , Sebastian Siewior , "linux-usb@vger.kernel.org" , "linux-kernel" , "linux-arm-kernel" , "Mankad, Maulik Ojas" References: <5A47E75E594F054BAF48C5E4FC4B92AB03216236D6@dbde02.ent.ti.com> In-Reply-To: <5A47E75E594F054BAF48C5E4FC4B92AB03216236D6@dbde02.ent.ti.com> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201002180756.14100.oliver@neukum.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 748 Lines: 18 Am Mittwoch, 17. Februar 2010 21:30:24 schrieb Gadiyar, Anand: > > Why do you skip mapping the setup packet but not the data packet? > > > > I think that's oversight. For this controller, we need to skip mapping > all buffers used to do transfers on EP0, which is all control transfers. One thing more. Do you have an issue with EP 0 only or all control endpoints? EP 0 must be control, but devices are within spec if they have multiple control endpoints provided EP 0 is control. Regards Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/