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printk: move braille console support into separate braille.[ch] files

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Create files with prototypes and static inlines for braille support.  Make
braille_console functions return 1 on success.

Corrected CONFIG_A11Y_BRAILLE_CONSOLE=n _braille_console_setup
return value to NULL.

Signed-off-by: Joe Perches <[email protected]>
Reviewed-by: Samuel Thibault <[email protected]>
Cc: Ming Lei <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Joe Perches 2013-07-31 13:53:45 -07:00 • committed by Linus Torvalds
commit bbeddf52ad
5 changed files with 117 additions and 33 deletions
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9
drivers/accessibility/braille/braille_console.c
View file

@ -359,6 +359,9 @@ int braille_register_console(struct console *console, int index,
char *console_options, char *braille_options)
{
int ret;
if (!(console->flags & CON_BRL))
return 0;
if (!console_options)
/* Only support VisioBraille for now */
console_options = "57600o8";
@ -374,15 +377,17 @@ int braille_register_console(struct console *console, int index,
braille_co = console;
register_keyboard_notifier(&keyboard_notifier_block);
register_vt_notifier(&vt_notifier_block);
return 0;
return 1;
}
int braille_unregister_console(struct console *console)
{
if (braille_co != console)
return -EINVAL;
if (!(console->flags & CON_BRL))
return 0;
unregister_keyboard_notifier(&keyboard_notifier_block);
unregister_vt_notifier(&vt_notifier_block);
braille_co = NULL;
return 0;
return 1;
}