Merge tag 'ux500-defconfig-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel...

[firefly-linux-kernel-4.4.55.git] / include / linux / tty_ldisc.h

diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index 7b24bbd85ea8431d364903377044f626826f166f..a1b0489998212d8db2bf831145da0bb87f4ee594 100644 (file)
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -100,6 +100,11 @@
  *     seek to perform this action quickly but should wait until
  *     any pending driver I/O is completed.
  *
+ * void (*fasync)(struct tty_struct *, int on)
+ *
+ *     Notify line discipline when signal-driven I/O is enabled or
+ *     disabled.
+ *
  * void (*dcd_change)(struct tty_struct *tty, unsigned int status)
  *
  *     Tells the discipline that the DCD pin has changed its status.
@@ -189,6 +194,7 @@ struct tty_ldisc_ops {
                               char *fp, int count);
        void    (*write_wakeup)(struct tty_struct *);
        void    (*dcd_change)(struct tty_struct *, unsigned int);
+       void    (*fasync)(struct tty_struct *tty, int on);
 
        struct  module *owner;