From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Cox Subject: Re: Can I manage/modify console baud rates from userspace? Date: Mon, 3 May 2010 20:17:29 +0100 Message-ID: <20100503201729.1ffff2d5@lxorguk.ukuu.org.uk> References: <1272758524.27961.1114.camel@homebase> <4BDD4CC7.3050507@gmail.com> <1272816895.27961.1131.camel@homebase> <20100502202534.GA29535@merkur.ravnborg.org> <1272907707.31303.23.camel@psmith-ubeta.netezza.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1272907707.31303.23.camel@psmith-ubeta.netezza.com> Sender: linux-embedded-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: paul@mad-scientist.net Cc: Sam Ravnborg , linux-embedded@vger.kernel.org > Is there some other way to modify the baud rate of the console device > from userspace once I figure out the right one? It would definitely be > less than ideal since we'd lose all the boot output, except what we can > get from dmesg _if_ the system boots, but it would be something. stty 57600 < /dev/ttyS1 etc. The console baud rate and settings should behave exactly as any other serial port if set from user space. > Any other thoughts or ideas? If you don't mind doing some small private kernel tweaks then I guess you could set the default console baud rate based on the dmi strings which would hopefully differ between the blade types. Alan