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TTY: add tty_port_link_device

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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>
This commit is contained in:
Jiri Slaby
2012-08-07 21:47:50 +02:00
committed by Greg Kroah-Hartman
parent 72a33bf58c
commit 2cb4ca0208
2 changed files with 23 additions and 1 deletions
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2
include/linux/tty.h
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@@ -497,6 +497,8 @@ extern int tty_write_lock(struct tty_struct *tty, int ndelay);
#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);