gptp_hdr Struct Reference

gPTP message header More...

#include <gptp.h>

Data Fields
uint8_t	message_type:4
	Type of the message.
uint8_t	transport_specific:4
	Transport specific, always 1.
uint8_t	ptp_version:4
	Version of the PTP, always 2.
uint8_t	reserved0:4
	Reserved field.
uint16_t	message_length
	Total length of the message from the header to the last TLV.
uint8_t	domain_number
	Domain number, always 0.
uint8_t	reserved1
	Reserved field.
struct gptp_flags	flags
	Message flags.
int64_t	correction_field
	Correction Field.
uint32_t	reserved2
	Reserved field.
struct gptp_port_identity	port_id
	Port Identity of the sender.
uint16_t	sequence_id
	Sequence Id.
uint8_t	control
	Control value.
int8_t	log_msg_interval
	Message Interval in Log2 for Sync and Announce messages.

Detailed Description

gPTP message header

Field Documentation

control

uint8_t gptp_hdr::control

Control value.

Sync: 0, Follow-up: 2, Others: 5.

correction_field

int64_t gptp_hdr::correction_field

Correction Field.

The content depends of the message type.

domain_number

uint8_t gptp_hdr::domain_number

Domain number, always 0.

flags

struct gptp_flags gptp_hdr::flags

Message flags.

log_msg_interval

int8_t gptp_hdr::log_msg_interval

Message Interval in Log2 for Sync and Announce messages.

message_length

uint16_t gptp_hdr::message_length

Total length of the message from the header to the last TLV.

message_type

uint8_t gptp_hdr::message_type

Type of the message.

port_id

struct gptp_port_identity gptp_hdr::port_id

Port Identity of the sender.

ptp_version

uint8_t gptp_hdr::ptp_version

Version of the PTP, always 2.

reserved0

uint8_t gptp_hdr::reserved0

Reserved field.

reserved1

uint8_t gptp_hdr::reserved1

Reserved field.

reserved2

uint32_t gptp_hdr::reserved2

Reserved field.

sequence_id

uint16_t gptp_hdr::sequence_id

Sequence Id.

transport_specific

uint8_t gptp_hdr::transport_specific

Transport specific, always 1.

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

• zephyr/net/gptp.h