From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marek Vasut <marex@denx.de>
Date: Sat, 3 Nov 2012 02:37:05 +0100
Subject: [U-Boot] [PATCH 2/2] serial: Make nulldev a serial device
In-Reply-To: <1351806388-27322-2-git-send-email-joe.hershberger@ni.com>
References: <1351806388-27322-1-git-send-email-joe.hershberger@ni.com>
	<1351806388-27322-2-git-send-email-joe.hershberger@ni.com>
Message-ID: <201211030237.06163.marex@denx.de>
List-Id: <u-boot.lists.denx.de>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: u-boot@lists.denx.de

Dear Joe Hershberger,

> This allows the default console to be specified as the nulldev.  This is
> specifically helpful when the real serial console's init() cannot run
> early in the boot process.  When the init can be run, then the console
> can be switched to the real device using the std* env vars.
> 
> Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>


Isn't it actually better to have null stdio device? Some systems might not even 
use serial port (and so null serial will be useless on these systems)!

[...]

Best regards,
Marek Vasut