int get_option_with(const struct nvram_accessor *nvram, struct cb_cmos_option_table *option_table, void *dest, char *name);
int get_option_from(struct cb_cmos_option_table *option_table, void *dest, char *name);
int get_option(void *dest, char *name);
int get_option_with(const struct nvram_accessor *nvram, struct cb_cmos_option_table *option_table, void *dest, char *name);
int get_option_from(struct cb_cmos_option_table *option_table, void *dest, char *name);
int get_option(void *dest, char *name);