From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753276Ab0HSNJw (ORCPT ); Thu, 19 Aug 2010 09:09:52 -0400 Received: from cantor.suse.de ([195.135.220.2]:39031 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751686Ab0HSNJt (ORCPT ); Thu, 19 Aug 2010 09:09:49 -0400 From: Oliver Neukum Organization: SUSE To: Raju Rameshwar Uprade Subject: Re: Regarding USB-Serial Device driver Date: Thu, 19 Aug 2010 15:09:47 +0200 User-Agent: KMail/1.13.5 (Linux/2.6.34-12-desktop; KDE/4.4.4; x86_64; ; ) Cc: LKML , "linux-usb" References: In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Message-Id: <201008191509.47636.oneukum@suse.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am Donnerstag, 19. August 2010, 08:28:57 schrieb Raju Rameshwar Uprade: > Dear All, > I am trying to write a Pl2303_mcm.c usb-serial device driver which > will be able > to talk to several devices using RS-485 interface card.I have modified the > standard > pl2303.c by which I am able to enable/disable the RTS line. > I am sending 10 bytes of data to the device, data is going out but instead > of 10 bytes, > device driver is sending a large amount of data as seen on Lecroy > waverunner > oscilloscope. Here I am sending the modified file. Could you please send this as a unified diff? And take the USB list into cc? Do you see this superfluous data also with usbmon? Regards Oliver