Add a note to esp_event_handler_instance_register_with and
esp_event_handler_instance_register to specify that calling those
functions with the instance parameter set to NULL is equivalent to
calling esp_event_handler_register_with and esp_event_handler_register.
Closes https://github.com/espressif/esp-idf/issues/12818
This commit updates the chip independent system chapters of the
programming guide for esp32s3.
Signed-off-by: Sudeep Mohanty <sudeep.mohanty@espressif.com>
* Description of unregistering was incorrect
* Made clear that event loop arg mustn't be NULL
* Added parameter check in create function
Closes https://github.com/espressif/esp-idf/issues/6761
Closes IDFGH-4969