b01db991a51fb48226e55736ea94f3d2ddf130d9
Without the flag lwip only holds a reference to the supplied buffers and the reference must be valid until the tcp ack is received. This can't be guaranteed for stack allocated buffers
ESPHome

Documentation: https://esphome.io/
For issues, please go to the issue tracker.
For feature requests, please see feature requests.
Languages
C++
60.7%
Python
38.7%
C
0.3%
JavaScript
0.2%
