From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263162AbTI2LdI (ORCPT ); Mon, 29 Sep 2003 07:33:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263170AbTI2LdI (ORCPT ); Mon, 29 Sep 2003 07:33:08 -0400 Received: from [202.56.133.247] ([202.56.133.247]:44896 "EHLO mgdigital.mgdigital.com.sg") by vger.kernel.org with ESMTP id S263162AbTI2LdG (ORCPT ); Mon, 29 Sep 2003 07:33:06 -0400 Message-Id: <6.0.0.22.0.20030929191802.025352f8@mail.mgdigital.com.sg> X-Mailer: QUALCOMM Windows Eudora Version 6.0.0.22 Date: Mon, 29 Sep 2003 19:32:56 +0800 To: linux-kernel@vger.kernel.org, linux-usb-devel@lists.sourceforge.net From: Hong Feng Subject: Sync problem with Ethernet-over-USB driver and Qtopia desktop In-Reply-To: <20030929123949.A19506@infomag.infomag.iguana.be> References: <20030917214836.A26822@infomag.infomag.iguana.be> <20030929123949.A19506@infomag.infomag.iguana.be> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-OriginalArrivalTime: 29 Sep 2003 11:33:03.0236 (UTC) FILETIME=[71A7C440:01C3867D] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi All, I met a very funny problem. I am writing the ethernet-over-usb driver for our PDA based on embedded Linux and QT/Qtopia. We use Qtopia desktop as the sync tools. Before our device launched the Qtopia-1.6.2. I can ping the device from my computer for a very long time. It looks that the connection is very stable. When Qtopia was launched, the connection will vanished in a short while, >3 seconds. How long the connection can last is not a constant value. When I used Qtopia desktop to do the synchronization, it will failed 95%. Who knows the problem, please give me some comments. BTW, the kernel version is 2.4.18. QT's version is 2.3.6. Qtopia's version is 1.6.2. Regards Hong Feng