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@tis.icnet.pl>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/include/linux/tty.h b/include/linux/tty.h
index 1488d8c81aa..26af9816391 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -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