TTY: add tty_port_link_device
This is for those drivers which do not have dynamic device creation
(do not call tty_port_register_device) and do not want to implement
tty->ops->install (will not call tty_port_install). They still have to
provide the link somehow though.
And this newly added function is exactly to serve that purpose.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/tty.h b/include/linux/tty.h
index acca24b..69a787f 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -497,6 +497,8 @@
#define tty_is_writelocked(tty) (mutex_is_locked(&tty->atomic_write_lock))
extern void tty_port_init(struct tty_port *port);
+extern void tty_port_link_device(struct tty_port *port,
+ struct tty_driver *driver, unsigned index);
extern struct device *tty_port_register_device(struct tty_port *port,
struct tty_driver *driver, unsigned index,
struct device *device);