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authorAlan Cox <alan@linux.intel.com>2009-09-19 13:13:20 -0700
committerLive-CD User <linux@linux.site>2009-09-19 13:13:20 -0700
commit7ca0ff9ab3218ec443a7a9ad247e4650373ed41e (patch)
tree73cb5a8f36d9999e0c85957cc27e7be2f140a610 /include/linux
parent24d481ecae1614cf02e638c8dce9b6e8bf230603 (diff)
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 <alan@linux.intel.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/tty.h8
1 files changed, 7 insertions, 1 deletions
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);