libserialport/config-pattern

/**
 * Set the {2} for the specified serial port.
 *
 * @param port Pointer to port structure.
 * @param {0} {3}.
 *
 * @return SP_OK upon success, a negative error code otherwise.
 */
enum sp_return sp_set_{0}(struct sp_port *port, {1} {0});

/**
 * Get the {2} from a port configuration.
 *
 * The user should allocate a variable of type {1} and pass a pointer to this
 * to receive the result.
 *
 * @param config Pointer to configuration structure.
 * @param {0}_ptr Pointer to variable to store result.
 *
 * @return SP_OK upon success, a negative error code otherwise.
 */
enum sp_return sp_get_config_{0}(const struct sp_port_config *config, {1} *{0}_ptr);

/**
 * Set the {2} in a port configuration.
 *
 * @param config Pointer to configuration structure.
 * @param {0} {3}, or -1 to retain current setting.
 *
 * @return SP_OK upon success, a negative error code otherwise.
 */
enum sp_return sp_set_config_{0}(struct sp_port_config *config, {1} {0});