tty: More driver operations

[linux-2.6-omap-h63xx.git] / include / linux / tty_driver.h

diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index ba891dd23550d1a593b9d2c6707db23fb83edb4b..005d06ad46a62ba987fbf19100630ee1cee7d070 100644 (file)
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -15,6 +15,20 @@
  *
  *     Optional method. Default behaviour is to use the ttys array
  *
+ * int (*install)(struct tty_driver *self, struct tty_struct *tty)
+ *
+ *     Install a new tty into the tty driver internal tables. Used in
+ *     conjunction with lookup and remove methods.
+ *
+ *     Optional method. Default behaviour is to use the ttys array
+ *
+ * void (*remove)(struct tty_driver *self, struct tty_struct *tty)
+ *
+ *     Remove a closed tty from the tty driver internal tables. Used in
+ *     conjunction with lookup and remove methods.
+ *
+ *     Optional method. Default behaviour is to use the ttys array
+ *
  * int  (*open)(struct tty_struct * tty, struct file * filp);
  *
  *     This routine is called when a particular tty device is opened.
@@ -212,6 +226,8 @@ struct tty_driver;
 
 struct tty_operations {
        struct tty_struct * (*lookup)(struct tty_driver *driver, int idx);
+       int  (*install)(struct tty_driver *driver, struct tty_struct *tty);
+       void (*remove)(struct tty_driver *driver, struct tty_struct *tty);
        int  (*open)(struct tty_struct * tty, struct file * filp);
        void (*close)(struct tty_struct * tty, struct file * filp);
        void (*shutdown)(struct tty_struct *tty);