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Commit 348eb12e authored by Alan Cox's avatar Alan Cox Committed by Linus Torvalds
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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: default avatarRodolfo Giometti <giometti@linux.it>
Signed-off-by: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 9e48565d

include/linux/tty.h

+2 −1
Original line number Diff line number Diff line
@@ -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