diff options
Diffstat (limited to 'include/linux/tty_driver.h')
| -rw-r--r-- | include/linux/tty_driver.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h index 2322313..2c5c35c 100644 --- a/include/linux/tty_driver.h +++ b/include/linux/tty_driver.h @@ -7,6 +7,14 @@ * defined; unless noted otherwise, they are optional, and can be * filled in with a null pointer. * + * struct tty_struct * (*lookup)(struct tty_driver *self, int idx) + * + * Return the tty device corresponding to idx, NULL if there is not + * one currently in use and an ERR_PTR value on error. Called under + * tty_mutex (for now!) + * + * Optional method. Default behaviour is to use the ttys array + * * int (*open)(struct tty_struct * tty, struct file * filp); * * This routine is called when a particular tty device is opened. @@ -203,6 +211,7 @@ struct tty_struct; struct tty_driver; struct tty_operations { + struct tty_struct * (*lookup)(struct tty_driver *driver, int idx); int (*open)(struct tty_struct * tty, struct file * filp); void (*close)(struct tty_struct * tty, struct file * filp); void (*shutdown)(struct tty_struct *tty); |