diff options
| author | Alan Cox <alan@linux.intel.com> | 2009-09-19 13:13:20 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-10-05 09:32:34 -0700 |
| commit | 4260dc792fabfd20c8644fa9414b2ae48372365f (patch) | |
| tree | f609caf9824847faba276bd1291d1e6934466f15 /include | |
| parent | 51451faaad9348b73a0c1e00e984a6029fca37fd (diff) | |
tty: Add a full port_close function
commit 7ca0ff9ab3218ec443a7a9ad247e4650373ed41e upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/tty.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h index e8c6c9136c97..b982a1771141 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -185,7 +185,12 @@ 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 { @@ -457,7 +462,8 @@ 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); |