linux-kernel - [PATCH 25/76] pps: Reserve a line discipline number for PPS

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Message-ID: <20081005160804.1997.49156.stgit@localhost.localdomain>
Date:	Sun, 05 Oct 2008 17:08:06 +0100
From:	Alan Cox <alan@...hat.com>
To:	linux-kernel@...r.kernel.org
Subject: [PATCH 25/76] pps: Reserve a line discipline number for PPS

Add a new line discipline for "pulse per second" devices connected to
a serial port.

Signed-off-by: Rodolfo Giometti <giometti@...ux.it>
Signed-off-by: Alan Cox <alan@...hat.com>
---

 include/linux/tty.h |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/include/linux/tty.h b/include/linux/tty.h
index 7271c62..e3612c3 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		18
+#define NR_LDISCS		19
 
 /* line disciplines */
 #define N_TTY		0
@@ -45,6 +45,7 @@
 #define N_HCI		15	/* Bluetooth HCI UART */
 #define N_GIGASET_M101	16	/* Siemens Gigaset M101 serial DECT adapter */
 #define N_SLCAN		17	/* Serial / USB serial CAN Adaptors */
+#define N_PPS		18	/* Pulse per Second */
 
 /*
  * This character is the same as _POSIX_VDISABLE: it cannot be used as

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