From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757402Ab2AKM3y (ORCPT ); Wed, 11 Jan 2012 07:29:54 -0500 Received: from lxorguk.ukuu.org.uk ([81.2.110.251]:43603 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753588Ab2AKM3u (ORCPT ); Wed, 11 Jan 2012 07:29:50 -0500 Date: Wed, 11 Jan 2012 12:30:25 +0000 From: Alan Cox To: Rajanikanth H V Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, gregkh@sude.de, linux-arm-kernel@lists.infradead.org Subject: Re: tty/serial: Need clarification on Support for 4+M Baudrate Message-ID: <20120111123025.244a9cf5@pyramind.ukuu.org.uk> In-Reply-To: <20120111121901.GA4034@bnru05> References: <20120111121901.GA4034@bnru05> X-Mailer: Claws Mail 3.7.10 (GTK+ 2.24.8; x86_64-redhat-linux-gnu) Face: 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 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 11 Jan 2012 17:49:01 +0530 > I have a requirement to interface UART with an external microcontroller > using baud rate above 4Mbps, hence following is my approach to apply > the changes. Can any one review/provide me appropriate approach. See TCGETS2/TCSETS2 and the BOTHER flag. The kernel supports aetting arbitary baud rates already. Alan