Collaboration diagram for PBUF:

Macros
#define	PBUF_LINK_HLEN (14 + ETH_PAD_SIZE)

#define	PBUF_LINK_ENCAPSULATION_HLEN 0

#define	PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_ENCAPSULATION_HLEN+PBUF_LINK_HLEN)

#define	LWIP_PBUF_REF_T u8_t

Detailed Description

Macro Definition Documentation

◆ LWIP_PBUF_REF_T

#define LWIP_PBUF_REF_T u8_t

LWIP_PBUF_REF_T: Refcount type in pbuf. Default width of u8_t can be increased if 255 refs are not enough for you.

◆ PBUF_LINK_ENCAPSULATION_HLEN

#define PBUF_LINK_ENCAPSULATION_HLEN 0

PBUF_LINK_ENCAPSULATION_HLEN: the number of bytes that should be allocated for an additional encapsulation header before ethernet headers (e.g. 802.11)

◆ PBUF_LINK_HLEN

#define PBUF_LINK_HLEN (14 + ETH_PAD_SIZE)

PBUF_LINK_HLEN: the number of bytes that should be allocated for a link level header. The default is 14, the standard value for Ethernet.

◆ PBUF_POOL_BUFSIZE

#define PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_ENCAPSULATION_HLEN+PBUF_LINK_HLEN)