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TTY: provide drivers with tty_port_install 

This will be used in tty_ops->install to set tty->port (and to call
tty_standard_install).

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby 2012-06-04 13:35:32 +02:00 committed by Greg Kroah-Hartman
parent 4c2ef53d3b
commit 695586ca20
2 changed files with 10 additions and 0 deletions
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8
drivers/tty/tty_port.c
View File

@ -413,6 +413,14 @@ void tty_port_close(struct tty_port *port, struct tty_struct *tty,
} }
EXPORT_SYMBOL(tty_port_close); EXPORT_SYMBOL(tty_port_close);
int tty_port_install(struct tty_port *port, struct tty_driver *driver,
struct tty_struct *tty)
{
tty->port = port;
return tty_standard_install(driver, tty);
}
EXPORT_SYMBOL_GPL(tty_port_install);
int tty_port_open(struct tty_port *port, struct tty_struct *tty, int tty_port_open(struct tty_port *port, struct tty_struct *tty,
struct file *filp) struct file *filp)
{ {

2
include/linux/tty.h
View File

@ -521,6 +521,8 @@ extern int tty_port_close_start(struct tty_port *port,
extern void tty_port_close_end(struct tty_port *port, struct tty_struct *tty); extern void tty_port_close_end(struct tty_port *port, struct tty_struct *tty);
extern void tty_port_close(struct tty_port *port, extern void tty_port_close(struct tty_port *port,
struct tty_struct *tty, struct file *filp); struct tty_struct *tty, struct file *filp);
extern int tty_port_install(struct tty_port *port, struct tty_driver *driver,
struct tty_struct *tty);
extern int tty_port_open(struct tty_port *port, extern int tty_port_open(struct tty_port *port,
struct tty_struct *tty, struct file *filp); struct tty_struct *tty, struct file *filp);
static inline int tty_port_users(struct tty_port *port) static inline int tty_port_users(struct tty_port *port)