From 7ea4aa70bfcec3225e2a38d8934c0b1f582c48c1 Mon Sep 17 00:00:00 2001 From: Vincent Whitchurch Date: Tue, 15 Feb 2022 15:17:49 +0100 Subject: char: ttyprintk: register console Register a console in the ttyprintk driver so that it can be selected for /dev/console with console=ttyprintk on the kernel command line, similar to other console drivers. Signed-off-by: Vincent Whitchurch Link: https://lore.kernel.org/r/20220215141750.92808-1-vincent.whitchurch@axis.com Signed-off-by: Greg Kroah-Hartman --- drivers/char/ttyprintk.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'drivers/char/ttyprintk.c') diff --git a/drivers/char/ttyprintk.c b/drivers/char/ttyprintk.c index adf941c47506..ed45d04905c2 100644 --- a/drivers/char/ttyprintk.c +++ b/drivers/char/ttyprintk.c @@ -11,6 +11,7 @@ * of the boot process, for example. */ +#include #include #include #include @@ -163,6 +164,18 @@ static const struct tty_port_operations tpk_port_ops = { static struct tty_driver *ttyprintk_driver; +static struct tty_driver *ttyprintk_console_device(struct console *c, + int *index) +{ + *index = 0; + return ttyprintk_driver; +} + +static struct console ttyprintk_console = { + .name = "ttyprintk", + .device = ttyprintk_console_device, +}; + static int __init ttyprintk_init(void) { int ret; @@ -195,6 +208,8 @@ static int __init ttyprintk_init(void) goto error; } + register_console(&ttyprintk_console); + return 0; error: @@ -205,6 +220,7 @@ error: static void __exit ttyprintk_exit(void) { + unregister_console(&ttyprintk_console); tty_unregister_driver(ttyprintk_driver); tty_driver_kref_put(ttyprintk_driver); tty_port_destroy(&tpk_port.port); -- cgit v1.2.3