Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

[sfrench/cifs-2.6.git] / include / linux / tty.h

diff --git a/include/linux/tty.h b/include/linux/tty.h
index c555f5442bd7c2c99cad45fb49370bb2280a8629..dd8e08fe88551a3d9c9ca2529226bfa55631e69b 100644 (file)
--- 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              17
+#define NR_LDISCS              18
 
 /* line disciplines */
 #define N_TTY          0
@@ -44,6 +44,7 @@
 #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 */
+#define N_SLCAN                17      /* Serial / USB serial CAN Adaptors */
 
 /*
  * This character is the same as _POSIX_VDISABLE: it cannot be used as
@@ -52,13 +53,6 @@
  */
 #define __DISABLED_CHAR '\0'
 
-/*
- * This is the flip buffer used for the tty driver.  The buffer is
- * located in the tty structure, and is used as a high speed interface
- * between the tty driver and the tty line discipline.
- */
-#define TTY_FLIPBUF_SIZE 512
-
 struct tty_buffer {
        struct tty_buffer *next;
        char *char_buf_ptr;
@@ -73,7 +67,6 @@ struct tty_buffer {
 
 struct tty_bufhead {
        struct delayed_work work;
-       struct semaphore pty_sem;
        spinlock_t lock;
        struct tty_buffer *head;        /* Queue head */
        struct tty_buffer *tail;        /* Active buffer */
@@ -319,6 +312,7 @@ extern speed_t tty_termios_input_baud_rate(struct ktermios *termios);
 extern void tty_termios_encode_baud_rate(struct ktermios *termios, speed_t ibaud, speed_t obaud);
 extern void tty_encode_baud_rate(struct tty_struct *tty, speed_t ibaud, speed_t obaud);
 extern void tty_termios_copy_hw(struct ktermios *new, struct ktermios *old);
+extern int tty_termios_hw_change(struct ktermios *a, struct ktermios *b);
 
 extern struct tty_ldisc *tty_ldisc_ref(struct tty_struct *);
 extern void tty_ldisc_deref(struct tty_ldisc *);