diff options
| author | Tilman Schmidt <tilman@imap.cc> | 2007-02-10 01:45:00 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-11 10:51:26 -0800 |
| commit | 4564f9e5fd00767d11fcf61e0d52787706dfcc87 (patch) | |
| tree | e7d2dd2c80099c23a7dadfb53f8faa74dba7d484 /include/linux/tty.h | |
| parent | 4a3b0a490d49ada8bbf3f426be1a0ace4dcd0a55 (diff) | |
[PATCH] consolidate line discipline number definitions
The line discipline numbers N_* are currently defined for each architecture
individually, but (except for a seeming mistake) identically, in
asm/termios.h. There is no obvious reason why these numbers should be
architecture specific, nor any apparent relationship with the termios
structure. The total number of these, NR_LDISCS, is defined in linux/tty.h
anyway. So I propose the following patch which moves the definitions of
the individual line disciplines to linux/tty.h too.
Three of these numbers (N_MASC, N_PROFIBUS_FDL, and N_SMSBLOCK) are unused
in the current kernel, but the patch still keeps the complete set in case
there are plans to use them yet.
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/tty.h')
| -rw-r--r-- | include/linux/tty.h | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h index 0161a8c6dbf..8427c9e98e6 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 |