diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/printk.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/printk.c b/kernel/printk.c index 9e34ce41beb6..224c37c0e28d 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -684,6 +684,26 @@ void console_unblank(void) EXPORT_SYMBOL(console_unblank); /* + * Return the console tty driver structure and its associated index + */ +struct tty_driver *console_device(int *index) +{ + struct console *c; + struct tty_driver *driver = NULL; + + acquire_console_sem(); + for (c = console_drivers; c != NULL; c = c->next) { + if (!c->device) + continue; + driver = c->device(c, index); + if (driver) + break; + } + release_console_sem(); + return driver; +} + +/* * The console driver calls this routine during kernel initialization * to register the console printing procedure with printk() and to * print any messages that were printed by the kernel before the |