STRUCT SNIFFER_BUF2{ STRUCT RXCONTROL RX_CTRL; U8 BUF[112];

[stern0m1]

Page 100 of the "esp8266-technical_reference_en" states:
struct sniffer_buf2{
struct RxControl rx_ctrl;
u8 buf[112]; //may be 240, please refer to the real source code
u16 cnt;
u16 len; //length of packet
};

What is it referring to when it says"may be 240, please refer to the real source code"

Thanks