| lwIP
    2.0.3
    Lightweight IP stack | 
#include <mqtt.h>
| Data Fields | |
| const char * | client_id | 
| const char * | client_user | 
| u16_t | keep_alive | 
| const char * | will_topic | 
Client information and connection parameters
| const char* mqtt_connect_client_info_t::client_id | 
Client identifier, must be set by caller
| const char* mqtt_connect_client_info_t::client_user | 
User name and password, set to NULL if not used
| u16_t mqtt_connect_client_info_t::keep_alive | 
keep alive time in seconds, 0 to disable keep alive functionality
| const char* mqtt_connect_client_info_t::will_topic | 
will topic, set to NULL if will is not to be used, will_msg, will_qos and will retain are then ignored