@@ -3026,6 +3026,19 @@ dev_t tty_devnum(struct tty_struct *tty)
}
EXPORT_SYMBOL(tty_devnum);
+static int dev_match_devt(struct device *dev, void *data)
+{
+ dev_t *devt = data;
+ return dev->devt == *devt;
+}
+
+struct device *tty_get_device(struct tty_struct *tty)
+{
+ dev_t devt = tty_devnum(tty);
+ return class_find_device(tty_class, NULL, &devt, dev_match_devt);
+}
+EXPORT_SYMBOL(tty_get_device);
+
void proc_clear_tty(struct task_struct *p)
{
unsigned long flags;
@@ -413,6 +413,7 @@ extern int tty_mode_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg);
extern int tty_perform_flush(struct tty_struct *tty, unsigned long arg);
extern dev_t tty_devnum(struct tty_struct *tty);
+struct device *tty_get_device(struct tty_struct *tty);
extern void proc_clear_tty(struct task_struct *p);
extern struct tty_struct *get_current_tty(void);
extern void tty_default_fops(struct file_operations *fops);