linux-kernel - [RFC] [PATCH 2/3] TTY: Add definition of a new line discipline required by Amstrad E3 (Delta) ASoC driver

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Date:	Wed, 22 Jul 2009 05:22:37 +0200
From:	Janusz Krzysztofik <jkrzyszt@....icnet.pl>
To:	jkrzyszt@....icnet.pl, Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	alsa-devel@...a-project.org,
	"linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	e3-hacking@...th.li, Jonathan McDowell <noodles@...th.li>,
	Jarkko Nikula <jhnikula@...il.com>,
	Peter Ujfalusi <peter.ujfalusi@...ia.com>,
	Tony Lindgren <tony@...mide.com>,
	Arun KS <arunks@...tralsolutions.com>
Subject: [RFC] [PATCH 2/3] TTY: Add definition of a new line discipline required by Amstrad E3 (Delta) ASoC driver

This patch adds new line discipline name an number to include/linux/tty.h. The
line discipline will be used by the Amstrad E3 (Delta) sound driver that will
come next in this series of patches.

Created against linux-2.6.31-rc3.
Applies to linux-omap-2.6 commit 7c5cb7862d32cb344be7831d466535d5255e35ac as
well.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@....icnet.pl>
---
The line discipline is named after the board name as its code will be board
specific.

--- linux-2.6.31-rc1/include/linux/tty.h.orig	2009-07-04 16:39:56.000000000 +0200
+++ linux-2.6.31-rc1/include/linux/tty.h	2009-07-06 16:14:31.000000000 +0200
@@ -23,7 +23,7 @@
  */
 #define NR_UNIX98_PTY_DEFAULT	4096      /* Default maximum for Unix98 ptys */
 #define NR_UNIX98_PTY_MAX	(1 << MINORBITS) /* Absolute limit */
-#define NR_LDISCS		19
+#define NR_LDISCS		20
 
 /* line disciplines */
 #define N_TTY		0
@@ -47,6 +47,8 @@
 #define N_SLCAN		17	/* Serial / USB serial CAN Adaptors */
 #define N_PPS		18	/* Pulse per Second */
 
+#define N_AMSDELTA	19	/* codec control over modem, board specific */
+
 /*
  * This character is the same as _POSIX_VDISABLE: it cannot be used as
  * a c_cc[] character, but indicates that a particular special character
--
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