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authorAlan Cox <alan@redhat.com>2008-10-13 10:37:17 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-13 09:51:40 -0700
commit348eb12e5598be97400c749d3d93a71856ae0b2b (patch)
tree770864c077d4cce1e17f6e139a30a0ba9add5742 /include/linux/tty.h
parent9e48565d217a8a96cc7577308ad41e9e4b806a62 (diff)
downloadop-kernel-dev-348eb12e5598be97400c749d3d93a71856ae0b2b.zip
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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@linux.it> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/tty.h')
-rw-r--r--include/linux/tty.h3
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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