From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Subject: Re: [BUG]: 2.6.19.2: Weird serial core issue Date: Wed, 31 Jan 2007 16:21:23 +0000 Message-ID: <20070131162123.67e22e23@localhost.localdomain> References: <6d6a94c50701310249o2b2c8024i4d3f28ec1601246a@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:46552 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1030212AbXAaQJF (ORCPT ); Wed, 31 Jan 2007 11:09:05 -0500 In-Reply-To: <6d6a94c50701310249o2b2c8024i4d3f28ec1601246a@mail.gmail.com> Sender: linux-serial-owner@vger.kernel.org List-Id: linux-serial@vger.kernel.org To: Aubrey Li Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org > When I telnet my board and run the following command: > ---- root:~> stty -F /dev/ttyS0 -crtscts > > I got the following result from the console of my board: > ---- root:~>new_termios flag: 0x1cb1, old_termios flag: 0x80001cb1 > > That's correct. CRTSCTS flag is clear > > But when I type "ENTER" key on the console, I got: > ----root:~>new_termios flag: 0x80001cb1, old_termios flag: 0x1cb1 What code is running on that console at the time. Most likely that user code is also saving/restoring terminal settings so overwrite yours