linux-kernel - Re: [PATCH] detour TTY driver

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Message-ID: <20100825004134.GA28884@suse.de>
Date:	Tue, 24 Aug 2010 17:41:34 -0700
From:	Greg KH <gregkh@...e.de>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Kay Sievers <kay.sievers@...y.org>,
	Samo Pogacnik <samo_pogacnik@....net>,
	linux kernel <linux-kernel@...r.kernel.org>,
	linux-embedded <linux-embedded@...r.kernel.org>
Subject: Re: [PATCH] detour TTY driver - now ttyprintk

On Wed, Aug 25, 2010 at 12:51:52AM +0100, Alan Cox wrote:
> > > - formatting
> > 
> > Ick, we really want to format things from userspace here?
> 
> Depends what you are trying to do.
> 
> Put an embedded hat on
> 
> Do you want to be able to flip between a real debug interface and a
> logging device on the same software set without risking changing behaviour

I don't understand this point.

> Do you want to load a 70K daemon and an initrd or burn about 1.5K on a
> kernel interface ?

I'd rather burn 0K on the one we have today :)

Seriously, look at how Fedora 14 handles this, why can't you do the same
for embedded systems all from userspace, no additional code needed
anywhere.

thanks,

greg k-h
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