net_buf Struct Reference

Network buffer representation. More...

#include <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
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...
}
struct net_buf_simple   b
};
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

b

struct net_buf_simple net_buf::b

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.

user_data_size

uint8_t net_buf::user_data_size

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

• include/zephyr/net/buf.h