2017-01-12 14:31, Qiming Yang: > + * @param fw_size > + * The size of the array pointed by fw_version, which should be > + * large enough to store firmware version of the device. > + * @return > + * - (0) if successful. > + * - (-ENOTSUP) if operation is not supported. > + * - (-ENODEV) if *port_id* invalid. > + * - (-EINVAL) if *fw_size* is not enough to store firmware version. > + */ > +int rte_eth_dev_fw_version_get(uint8_t port_id, > + char *fw_version, size_t fw_size); > +
How to know the required size? You should return the size of the non truncated string as snprintf does. Note: Andrew Rybchenko already commented on it and you didn't reply.
