Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755731AbdCMBq6 (ORCPT ); Sun, 12 Mar 2017 21:46:58 -0400 Received: from nimbus1.mmprivatehosting.com ([54.208.90.49]:41304 "EHLO nimbus1.mmprivatehosting.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751155AbdCMBqq (ORCPT ); Sun, 12 Mar 2017 21:46:46 -0400 Date: Sun, 12 Mar 2017 21:46:41 -0400 From: Dave Mielke To: Alan Stern Cc: Samuel Thibault , gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, kevin.derome@epitech.eu, clause.andreabush@gmail.com, mengualjeanphi@free.fr Subject: Re: [PATCH] usb-core: Add MS_INTR_BINTERVAL USB quirk Message-ID: <20170313014641.GI20039@beta.private.mielke.cc> References: <20170313013649.GH20039@beta.private.mielke.cc> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 966 Lines: 18 [quoted lines by Alan Stern on 2017/03/12 at 21:40 -0400] >No, I was wondering why an HID device would run at high speed. Both >you and Samuel implied that this was because it was a USB-2 device. >But that is not an adequate answer, because it is perfectly valid for a >USB-2 device to run at full speed. What should we look at to find out what speed it wants to operate at? We didn't look into it becuaase the real problem, from our perspective, was that the 64ms interval was being honoured by the host when it should be the 10ms as is literally in the endpoint descriptor. Our assumption was that since it says it's USB 2.0 then bInterval must be intterpreted in light of that regardless of the actual speed used for communication. -- Dave Mielke | 2213 Fox Crescent | The Bible is the very Word of God. Phone: 1-613-726-0014 | Ottawa, Ontario | http://Mielke.cc/bible/ EMail: Dave@Mielke.cc | Canada K2A 1H7 | http://FamilyRadio.org/