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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859// SPDX-License-Identifier: GPL-2.0#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>#include <linux/console.h>#include <linux/errno.h>#include <linux/string.h>
#include "console_cmdline.h"#include "braille.h"
int _braille_console_setup(char **str, char **brl_options){ size_t len;
len = str_has_prefix(*str, "brl,"); if (len) { *brl_options = ""; *str += len; return 0; }
len = str_has_prefix(*str, "brl="); if (len) { *brl_options = *str + len; *str = strchr(*brl_options, ','); if (!*str) { pr_err("need port name after brl=\n"); return -EINVAL; } *((*str)++) = 0; }
return 0;}
int_braille_register_console(struct console *console, struct console_cmdline *c){ int rtn = 0;
if (c->brl_options) { console->flags |= CON_BRL; rtn = braille_register_console(console, c->index, c->options, c->brl_options); }
return rtn;}
int_braille_unregister_console(struct console *console){ if (console->flags & CON_BRL) return braille_unregister_console(console);
return 0;}