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vt: add comment for unbind_con_driver()

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- add comment for unbind_con_driver().
- bind_con_driver() is made private again

Signed-off-by: Jesse Barnes <jesse.barnes@intel.com>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jesse Barnes 2007-07-17 04:05:34 -07:00 committed by Linus Torvalds
parent cfafca8067
commit b7269dd2b9
2 changed files with 19 additions and 4 deletions
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21
drivers/char/vt.c
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@ -2869,7 +2869,8 @@ int __init vty_init(void)
static struct class *vtconsole_class;
int bind_con_driver(const struct consw *csw, int first, int last, int deflt)
static int bind_con_driver(const struct consw *csw, int first, int last,
int deflt)
{
struct module *owner = csw->owner;
const char *desc = NULL;
@ -2968,7 +2969,6 @@ int bind_con_driver(const struct consw *csw, int first, int last, int deflt)
module_put(owner);
return retval;
};
EXPORT_SYMBOL(bind_con_driver);
#ifdef CONFIG_VT_HW_CONSOLE_BINDING
static int con_is_graphics(const struct consw *csw, int first, int last)
@ -2987,6 +2987,23 @@ static int con_is_graphics(const struct consw *csw, int first, int last)
return retval;
}
/**
* unbind_con_driver - unbind a console driver
* @csw: pointer to console driver to unregister
* @first: first in range of consoles that @csw should be unbound from
* @last: last in range of consoles that @csw should be unbound from
* @deflt: should next bound console driver be default after @csw is unbound?
*
* To unbind a driver from all possible consoles, pass 0 as @first and
* %MAX_NR_CONSOLES as @last.
*
* @deflt controls whether the console that ends up replacing @csw should be
* the default console.
*
* RETURNS:
* -ENODEV if @csw isn't a registered console driver or can't be unregistered
* or 0 on success.
*/
int unbind_con_driver(const struct consw *csw, int first, int last, int deflt)
{
struct module *owner = csw->owner;

2
include/linux/vt_kern.h
View File

@ -75,8 +75,6 @@ int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc);
int vt_waitactive(int vt);
void change_console(struct vc_data *new_vc);
void reset_vc(struct vc_data *vc);
extern int bind_con_driver(const struct consw *csw, int first, int last,
int deflt);
extern int unbind_con_driver(const struct consw *csw, int first, int last,
int deflt);