1 files changed, 21 insertions, 1 deletions

diff --git a/include/linux/tty.h b/include/linux/tty.h
index 0161a8c6dbf6..8427c9e98e6b 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -24,7 +24,27 @@
 #define NR_PTYS CONFIG_LEGACY_PTY_COUNT   /* Number of legacy ptys */
 #define NR_UNIX98_PTY_DEFAULT   4096      /* Default maximum for Unix98 ptys */
 #define NR_UNIX98_PTY_MAX       (1 << MINORBITS) /* Absolute limit */
-#define NR_LDISCS               16
+#define NR_LDISCS               17
+
+/* line disciplines */
+#define N_TTY           0
+#define N_SLIP          1
+#define N_MOUSE         2
+#define N_PPP           3
+#define N_STRIP         4
+#define N_AX25          5
+#define N_X25           6       /* X.25 async */
+#define N_6PACK         7
+#define N_MASC          8       /* Reserved for Mobitex module <kaz@cafe.net> */
+#define N_R3964         9       /* Reserved for Simatic R3964 module */
+#define N_PROFIBUS_FDL  10      /* Reserved for Profibus <Dave@mvhi.com> */
+#define N_IRDA          11      /* Linux IrDa - http://irda.sourceforge.net/ */
+#define N_SMSBLOCK      12      /* SMS block mode - for talking to GSM data */
+                                /* cards about SMS messages */
+#define N_HDLC          13      /* synchronous HDLC */
+#define N_SYNC_PPP      14      /* synchronous PPP */
+#define N_HCI           15      /* Bluetooth HCI UART */
+#define N_GIGASET_M101  16      /* Siemens Gigaset M101 serial DECT adapter */
 
 /*
  * This character is the same as _POSIX_VDISABLE: it cannot be used as