From 7ca0ff9ab3218ec443a7a9ad247e4650373ed41e Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Sat, 19 Sep 2009 13:13:20 -0700 Subject: tty: Add a full port_close function Now we are extracting out methods for shutdown and the like we can add a proper tty_port_close method that knows all the innards of the tty closing process and hides the lot from the caller. At some point in the future this will be paired with a similar open() helper and the drivers can stick to hardware management. Signed-off-by: Alan Cox Cc: stable Signed-off-by: Greg Kroah-Hartman --- include/linux/tty.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/tty.h b/include/linux/tty.h index a916a318004..ecb3d1ba301 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -187,7 +187,12 @@ struct tty_port; struct tty_port_operations { /* Return 1 if the carrier is raised */ int (*carrier_raised)(struct tty_port *port); + /* Control the DTR line */ void (*dtr_rts)(struct tty_port *port, int raise); + /* Called when the last close completes or a hangup finishes + IFF the port was initialized. Do not use to free resources */ + void (*shutdown)(struct tty_port *port); + void (*drop)(struct tty_port *port); }; struct tty_port { @@ -459,7 +464,8 @@ extern int tty_port_block_til_ready(struct tty_port *port, extern int tty_port_close_start(struct tty_port *port, struct tty_struct *tty, struct file *filp); extern void tty_port_close_end(struct tty_port *port, struct tty_struct *tty); - +extern void tty_port_close(struct tty_port *port, + struct tty_struct *tty, struct file *filp); extern int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc); extern int tty_unregister_ldisc(int disc); extern int tty_set_ldisc(struct tty_struct *tty, int ldisc); -- cgit v1.2.3