https://github.com/espressif/esp-idf/blob/bf8d4d55d0c004a5c52b7721d6ae0484565e74fa/components/esp_rom/include/esp32c2/rom/miniz.h// pBut_buf_func: If NULL, output data will be supplied to the specified callback. In this case, the user should call the tdefl_compress_buffer() API for compression.
If NULL,there are no callback.
it seems to be:
// pBut_buf_func: If **not** NULL, output data will be supplied to the specified callback. In this case, the user should call the tdefl_compress_buffer() API for compression.
https://github.com/espressif/esp-idf/blob/bf8d4d55d0c004a5c52b7721d6ae0484565e74fa/components/esp_rom/include/esp32c2/rom/miniz.h
// pBut_buf_func: If NULL, output data will be supplied to the specified callback. In this case, the user should call the tdefl_compress_buffer() API for compression.
If NULL,there are no callback. it seems to be:// pBut_buf_func: If **not** NULL, output data will be supplied to the specified callback. In this case, the user should call the tdefl_compress_buffer() API for compression.