SocketCAN library

SocketCAN library . More...

Data Structures
struct	sockaddr_can
	struct sockaddr_can - The sockaddr structure for CAN sockets More...
struct	socketcan_frame
	CAN frame for Linux SocketCAN compatibility. More...
struct	socketcan_filter
	CAN filter for Linux SocketCAN compatibility. More...

Macros
#define	CAN_RAW   1
	Protocols of the protocol family PF_CAN.
#define	SOCKETCAN_MAX_DLEN   8U
	SocketCAN max data length.
#define	CAN_MTU   (sizeof(struct socketcan_frame))
	CAN frame MTU.
#define	CANFD_BRS   0x01
	Bit rate switch (second bitrate for payload data)
#define	CANFD_ESI   0x02
	Error state indicator of the transmitting node.
#define	CANFD_FDF   0x04
	Mark CAN FD for dual use of struct canfd_frame.

Functions
static void	socketcan_to_can_frame (const struct socketcan_frame *sframe, struct can_frame *zframe)
	Translate a socketcan_frame struct to a can_frame struct.
static void	socketcan_from_can_frame (const struct can_frame *zframe, struct socketcan_frame *sframe)
	Translate a can_frame struct to a socketcan_frame struct.
static void	socketcan_to_can_filter (const struct socketcan_filter *sfilter, struct can_filter *zfilter)
	Translate a socketcan_filter struct to a can_filter struct.
static void	socketcan_from_can_filter (const struct can_filter *zfilter, struct socketcan_filter *sfilter)
	Translate a can_filter struct to a socketcan_filter struct.

Linux SocketCAN compatibility
The following structures and functions provide compatibility with the CAN frame and CAN filter formats used by Linux SocketCAN.
typedef uint32_t	socketcan_id_t
	CAN Identifier structure for Linux SocketCAN compatibility.

Detailed Description

SocketCAN library .

SocketCAN utilities .

Since

1.14

Version

0.8.0

Macro Definition Documentation

CAN_MTU

#define CAN_MTU   (sizeof(struct socketcan_frame))

#include <zephyr/net/socketcan.h>

CAN frame MTU.

CAN_RAW

#define CAN_RAW   1

#include <zephyr/net/socketcan.h>

Protocols of the protocol family PF_CAN.

CANFD_BRS

#define CANFD_BRS   0x01

#include <zephyr/net/socketcan.h>

Bit rate switch (second bitrate for payload data)

CANFD_ESI

#define CANFD_ESI   0x02

#include <zephyr/net/socketcan.h>

Error state indicator of the transmitting node.

CANFD_FDF

#define CANFD_FDF   0x04

#include <zephyr/net/socketcan.h>

Mark CAN FD for dual use of struct canfd_frame.

SOCKETCAN_MAX_DLEN

#define SOCKETCAN_MAX_DLEN   8U

#include <zephyr/net/socketcan.h>

SocketCAN max data length.

Typedef Documentation

socketcan_id_t

typedef uint32_t socketcan_id_t

#include <zephyr/net/socketcan.h>

CAN Identifier structure for Linux SocketCAN compatibility.

The fields in this type are:

+------+--------------------------------------------------------------+
| Bits | Description                                                  |
+======+==============================================================+
| 0-28 | CAN identifier (11/29 bit)                                   |
+------+--------------------------------------------------------------+
|  29  | Error message frame flag (0 = data frame, 1 = error message) |
+------+--------------------------------------------------------------+
|  30  | Remote transmission request flag (1 = RTR frame)             |
+------+--------------------------------------------------------------+
|  31  | Frame format flag (0 = standard 11 bit, 1 = extended 29 bit) |
+------+--------------------------------------------------------------+

Function Documentation

socketcan_from_can_filter()

static void socketcan_from_can_filter ( const struct can_filter * zfilter, struct socketcan_filter * sfilter )

inlinestatic

#include <zephyr/net/socketcan_utils.h>

Translate a can_filter struct to a socketcan_filter struct.

Parameters

zfilter	Pointer to can_filter struct.
sfilter	Pointer to socketcan_filter struct.

socketcan_from_can_frame()

static void socketcan_from_can_frame ( const struct can_frame * zframe, struct socketcan_frame * sframe )

inlinestatic

#include <zephyr/net/socketcan_utils.h>

Translate a can_frame struct to a socketcan_frame struct.

Parameters

zframe	Pointer to can_frame struct.
sframe	Pointer to socketcan_frame struct.

< Mark CAN FD for dual use of struct canfd_frame

< Bit rate switch (second bitrate for payload data)

socketcan_to_can_filter()

static void socketcan_to_can_filter ( const struct socketcan_filter * sfilter, struct can_filter * zfilter )

inlinestatic

#include <zephyr/net/socketcan_utils.h>

Translate a socketcan_filter struct to a can_filter struct.

Parameters

sfilter	Pointer to socketcan_filter struct.
zfilter	Pointer to can_filter struct.

socketcan_to_can_frame()

static void socketcan_to_can_frame ( const struct socketcan_frame * sframe, struct can_frame * zframe )

inlinestatic

#include <zephyr/net/socketcan_utils.h>

Translate a socketcan_frame struct to a can_frame struct.

Parameters

sframe	Pointer to sockecan_frame struct.
zframe	Pointer to can_frame struct.

< Mark CAN FD for dual use of struct canfd_frame

< Bit rate switch (second bitrate for payload data)