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How to setup sent callback for promiscuous mode

PostPosted: Thu May 14, 2020 11:47 am
by obiezboncak
In the ESP8266 Non-OS SDK API Reference, under wifi_send_pkt_freedom method it states,

Only after the previous packet was sent, and the sent callback is entered, the next packet is allowed to send. Otherwise, wifi_send_pkt_freedom will return “fail”.

How does one setup the sent callback? - I have set up espconn_regist_sentcb() before for TCP, but there does not seem to be such a method dedicated to promiscuous mode and the required espconn_regist_sentcb method requires an espconn structure that can only be configured with a TCP or UDP object. Since promiscuous mode is neither, what do I do? All examples that I have found click test on the Internet just brute force the wifi_send_pkt_freedom and let it fail... sometime trying multiple times immediately after each other expecting a different answer. I would rather check it being ready and only then create the message to be sent.

Thanks for your help.