blob: 6d2cf32a9e8f880eeaf7439e874ef4640f3ec7dc [file] [log] [blame]
#include <linux/init.h>
#include <linux/console.h>
#include "chan_user.h"
/* ----------------------------------------------------------------------------- */
/* trivial console driver -- simply dump everything to stderr */
* Don't register by default -- as this registeres very early in the
* boot process it becomes the default console.
static int use_stderr_console = 0;
static void stderr_console_write(struct console *console, const char *string,
unsigned len)
generic_write(2 /* stderr */, string, len, NULL);
static struct console stderr_console = {
.name = "stderr",
.write = stderr_console_write,
static int __init stderr_console_init(void)
if (use_stderr_console)
return 0;
static int stderr_setup(char *str)
if (!str)
return 0;
use_stderr_console = simple_strtoul(str,&str,0);
return 1;
__setup("stderr=", stderr_setup);
/* The previous behavior of not unregistering led to /dev/console being
* impossible to open. My FC5 filesystem started having init die, and the
* system panicing because of this. Unregistering causes the real
* console to become the default console, and /dev/console can then be
* opened. Making this an initcall makes this happen late enough that
* there is no added value in dumping everything to stderr, and the
* normal console is good enough to show you all available output.
static int __init unregister_stderr(void)
return 0;