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2ed2b8621b
commitbbeddf52ad("printk: move braille console support into separate braille.[ch] files") introduced _braille_console_setup() to outline the braille initialization code. There was however some confusion over the value it was supposed to return. commit2cfe6c4ac7("printk: Fix return of braille_register_console()") tried to fix it but failed to. This fixes and documents the returned value according to the use in printk.c: non-zero return means a parsing error, and thus this console configuration should be ignored. Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Cc: Aleksey Makarov <aleksey.makarov@linaro.org> Cc: Joe Perches <joe@perches.com> Cc: Ming Lei <ming.lei@canonical.com> Cc: Steven Rostedt <rostedt@goodmis.org> Acked-by: Petr Mladek <pmladek@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
55 lines
1 KiB
C
55 lines
1 KiB
C
#ifndef _PRINTK_BRAILLE_H
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#define _PRINTK_BRAILLE_H
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#ifdef CONFIG_A11Y_BRAILLE_CONSOLE
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static inline void
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braille_set_options(struct console_cmdline *c, char *brl_options)
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{
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c->brl_options = brl_options;
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}
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/*
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* Setup console according to braille options.
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* Return -EINVAL on syntax error, 0 on success (or no braille option was
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* actually given).
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* Modifies str to point to the serial options
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* Sets brl_options to the parsed braille options.
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*/
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int
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_braille_console_setup(char **str, char **brl_options);
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int
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_braille_register_console(struct console *console, struct console_cmdline *c);
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int
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_braille_unregister_console(struct console *console);
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#else
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static inline void
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braille_set_options(struct console_cmdline *c, char *brl_options)
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{
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}
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static inline int
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_braille_console_setup(char **str, char **brl_options)
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{
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return 0;
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}
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static inline int
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_braille_register_console(struct console *console, struct console_cmdline *c)
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{
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return 0;
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}
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static inline int
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_braille_unregister_console(struct console *console)
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{
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return 0;
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}
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#endif
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#endif
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