bool parse_boolean (struct driver_option);
int parse_enum (struct driver_option, ...) SENTINEL(0);
#define parse_enum(...) parse_enum(__VA_ARGS__, NULL_SENTINEL)
int parse_int (struct driver_option, int min_value, int max_value);
bool parse_boolean (struct driver_option);
int parse_enum (struct driver_option, ...) SENTINEL(0);
#define parse_enum(...) parse_enum(__VA_ARGS__, NULL_SENTINEL)
int parse_int (struct driver_option, int min_value, int max_value);