linux-kernel - Re: [PATCH] serial: DCC(JTAG) serial and console emulation support

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Message-ID: <1286489490.23836.121.camel@c-dwalke-linux.qualcomm.com>
Date:	Thu, 07 Oct 2010 15:11:30 -0700
From:	Daniel Walker <dwalker@...eaurora.org>
To:	Greg KH <gregkh@...e.de>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>, linux-kernel@...r.kernel.org,
	"Hyok S. Choi" <hyok.choi@...sung.com>,
	Tony Lindgren <tony@...mide.com>,
	Jeff Ohlstein <johlstei@...cinc.com>,
	Ben Dooks <ben-linux@...ff.org>,
	Alan Cox <alan@...ux.intel.com>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Mike Frysinger <vapier@...too.org>,
	Feng Tang <feng.tang@...el.com>,
	Tobias Klauser <tklauser@...tanz.ch>,
	Jason Wessel <jason.wessel@...driver.com>,
	Philippe Langlais <philippe.langlais@...ricsson.com>
Subject: Re: [PATCH] serial: DCC(JTAG) serial and console emulation support

On Thu, 2010-10-07 at 14:52 -0700, Greg KH wrote:
> On Thu, Oct 07, 2010 at 02:47:18PM -0700, Daniel Walker wrote:
> > On Thu, 2010-10-07 at 14:15 -0700, Greg KH wrote:
> > > On Thu, Oct 07, 2010 at 01:51:18PM -0700, Daniel Walker wrote:
> > > > Your making too many assumptions .. You might be able to modify the
> > > > kernel, and not the userspace. So you couldn't tweak the device
> > > > creation .. It's much easier in the server world ..
> > > 
> > > You're saying it's easier to replace an embedded kernel than a userspace
> > > file on an embedded system?  Heh, that's funny.
> > 
> > I'm saying it _can_ happen that it's easier to replace the kernel.. I'm
> > not saying it's always the case. We're talking about debugging
> > situations in an embedded environment which don't always follow a normal
> > path.
> 
> Nothing is "normal", so stop trying to say it is easier in the "server"
> world please.

Ok ..

> > > > > We've said no over a period of about ten years to a lot of attempts to
> > > > > just borrow the ttyS0 range. If we'd said yes it would have been a
> > > > > complete mess by now.
> > > > > 
> > > > > So the answer is no.
> > > > 
> > > > Nothing can be unilateral, there's always room for exceptions. You
> > > > should say something more like "it's possible, but unlikely".
> > > 
> > > Hm, how about this, as the TTY and serial driver[1] maintainer, I will
> > > not accept this kind of patch at all.
> > > 
> > > Is that final enough for you?
> > 
> > So you don't like it, that's fair enough .. <thinks>I wonder what other
> > maintainers I can send this too</thinks> ;)
> > 
> > Can you be more specific about your objections
> 
> See everything that Mike and Alan wrote, do I need to repeat it?

I'm not sure .. I would say "Yes" if I didn't get the feeling your
already to tear my head off.

I think the only disputed issue is the use of ttyS as options part of
the driver ..

Daniel

-- 

Sent by a consultant of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.

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