Date: Tue, 24 Aug 2010 17:41:34 -0700
From: Greg KH <gregkh@suse.de>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Kay Sievers <kay.sievers@vrfy.org>, Samo Pogacnik <samo_pogacnik@t-2.net>,
        linux kernel <linux-kernel@vger.kernel.org>,
        linux-embedded <linux-embedded@vger.kernel.org>
Subject: Re: [PATCH] detour TTY driver - now ttyprintk
Message-ID: <20100825004134.GA28884@suse.de>
References: <20100625120329.1303aa61@lxorguk.ukuu.org.uk> <1282683470.8020.66.camel@itpsd6lap> <20100824211016.GA7176@suse.de> <1282687797.8020.108.camel@itpsd6lap> <20100824222035.GA10625@suse.de> <1282690232.8020.116.camel@itpsd6lap> <20100824225703.GA5913@suse.de> <20100825002221.68fc09a4@lxorguk.ukuu.org.uk> <20100824231241.GA6971@suse.de> <20100825005152.40ba2f12@lxorguk.ukuu.org.uk>
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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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