Basic braille screen reader support
This adds a minimalistic braille screen reader support. This is meant to
be used by blind people e.g. on boot failures or when / cannot be mounted
etc and thus the userland screen readers can not work.
[akpm@linux-foundation.org: fix exports]
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Cc: Jiri Kosina <jikos@jikos.cz>
Cc: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Alan Cox <alan@redhat.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/console.h b/include/linux/console.h
index a5f88a6..a4f27fb 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -91,6 +91,7 @@
#define CON_ENABLED (4)
#define CON_BOOT (8)
#define CON_ANYTIME (16) /* Safe to call when cpu is offline */
+#define CON_BRL (32) /* Used for a braille device */
struct console {
char name[16];
@@ -121,6 +122,9 @@
extern void console_stop(struct console *);
extern void console_start(struct console *);
extern int is_console_locked(void);
+extern int braille_register_console(struct console *, int index,
+ char *console_options, char *braille_options);
+extern int braille_unregister_console(struct console *);
extern int console_suspend_enabled;