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

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Date:	Thu, 7 Oct 2010 16:02:30 -0400
From:	Mike Frysinger <vapier@...too.org>
To:	Daniel Walker <dwalker@...eaurora.org>
Cc:	linux-kernel@...r.kernel.org,
	"Hyok S. Choi" <hyok.choi@...sung.com>,
	Tony Lindgren <tony@...mide.com>,
	Jeff Ohlstein <johlstei@...cinc.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Ben Dooks <ben-linux@...ff.org>,
	Alan Cox <alan@...ux.intel.com>,
	Kukjin Kim <kgene.kim@...sung.com>,
	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, Oct 7, 2010 at 15:58, Daniel Walker wrote:
> On Thu, 2010-10-07 at 15:48 -0400, Mike Frysinger wrote:
>> i dont think hijacking the "ttyS" namespace is acceptable, even if
>> it's behind a Kconfig.  other people have tried in the past (myself
>> included) and been shot down.  sounds like a shim for crappy userspace
>> apps that blindly assume /dev/ttyS*.  is that really an issue anymore
>> though now that things like /dev/ttyUSB* are so common and people are
>> used to picking between multiple serial sources ?
>
> It also creates a ttyJ* which uses the same interfaces as the code for
> ttyS* .. I don't think allowing a Kconfig option to shim this in as a
> ttyS* is all that bad .. This driver is only going to be used in rare
> cases for debugging , having a ttyS* is just a level of flexibility ..

how is that any different from:
ln -s ttyJ0 /dev/ttyS0
-mike
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