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[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

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

--- 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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