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Subject: Re: [PATCH] serial: DCC(JTAG) serial and console emulation support
From: Daniel Walker <dwalker@codeaurora.org>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Mike Frysinger <vapier@gentoo.org>, linux-kernel@vger.kernel.org,
        "Hyok S. Choi" <hyok.choi@samsung.com>,
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        Philippe Langlais <philippe.langlais@stericsson.com>
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Date: Fri, 08 Oct 2010 08:23:54 -0700
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On Fri, 2010-10-08 at 09:13 +0100, Alan Cox wrote:
> > It is , what's to stop any userspace from using ttyS0 ? .. There's lots
> > of binary userspaces in the embedded world, along with many strange
> > usages ..
> 
> So you change your file system, whoopee.

I'm assuming Hyok added this because it wasn't easy or possible to
change the file system .. I can imagine there are debugging situations
where that's true.

> And if your hypothetical user isn't able to do this then maybe instead of
> trying to screw up the kernel for everyone they should ask an
> undergraduate student who is smart enough to help them.

I don't think the kernel is going to implode if we allow an optional
ttyS override for debugging purposes.. I just don't see that "screwing"
up the kernel. I can even embedded that inside the C file, and not make
it a Kconfig option ..

Daniel

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