Network buffer representation. More...

#include <zephyr/net_buf.h>

Data Fields
sys_snode_t	node
	Allow placing the buffer into sys_slist_t.
struct net_buf *	frags
	Fragments associated with this buffer.
uint8_t	ref
	Reference count.
uint8_t	flags
	Bit-field of buffer flags.
uint8_t	pool_id
	Where the buffer should go when freed up.
uint8_t	user_data_size
	Size of user data on this buffer.
union {
struct {
uint8_t * data
	Pointer to the start of data in the buffer. More...
uint16_t len
	Length of the data behind the data pointer. More...
uint16_t size
	Amount of data that this buffer can store. More...
}
};
	Union for convenience access to the net_buf_simple members, also preserving the old API.
uint8_t	user_data []
	System metadata for this buffer.

Detailed Description

Network buffer representation.

This struct is used to represent network buffers. Such buffers are normally defined through the NET_BUF_POOL_*_DEFINE() APIs and allocated using the net_buf_alloc() API.

Field Documentation

◆ [union]

union { ... } net_buf

Union for convenience access to the net_buf_simple members, also preserving the old API.

◆ data

uint8_t* net_buf::data

Pointer to the start of data in the buffer.

◆ flags

uint8_t net_buf::flags

Bit-field of buffer flags.

◆ frags

struct net_buf* net_buf::frags

Fragments associated with this buffer.

◆ len

uint16_t net_buf::len

Length of the data behind the data pointer.

◆ node

sys_snode_t net_buf::node

Allow placing the buffer into sys_slist_t.

◆ pool_id

uint8_t net_buf::pool_id

Where the buffer should go when freed up.

◆ ref

uint8_t net_buf::ref

Reference count.

◆ size

uint16_t net_buf::size

Amount of data that this buffer can store.

◆ user_data

uint8_t net_buf::user_data[]

System metadata for this buffer.

Cleared on allocation.

◆ user_data_size

uint8_t net_buf::user_data_size

Size of user data on this buffer.

The documentation for this struct was generated from the following file:

zephyr/net_buf.h

Data Fields