#include <net/if.h>
#include "socketcan.h"
#include <poll.h>
#include <string.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <linux/can.h>
#include <errno.h>
#include <stdlib.h>

Include dependency graph for socketcan.c:

Macros
#define	_GNU_SOURCE

Functions
static int16_t	getErrorCode ()
	Returns the current errno as negated int16_t. More...

int16_t	socketcanClose (SocketCANInstance *ins)

int	socketcanGetSocketFileDescriptor (const SocketCANInstance *ins)

int16_t	socketcanInit (SocketCANInstance out_ins, const char can_iface_name)

int16_t	socketcanReceive (SocketCANInstance ins, CanardCANFrame out_frame, int32_t timeout_msec)

int16_t	socketcanTransmit (SocketCANInstance ins, const CanardCANFrame frame, int32_t timeout_msec)

Macro Definition Documentation

◆ _GNU_SOURCE

#define _GNU_SOURCE

Definition at line 10 of file socketcan.c.

Function Documentation

◆ getErrorCode()

static int16_t getErrorCode ( )

static

Returns the current errno as negated int16_t.

Definition at line 24 of file socketcan.c.

◆ socketcanClose()

int16_t socketcanClose ( SocketCANInstance * ins )

Deinitializes the SocketCAN instance. Returns 0 on success, negative on error.

Definition at line 89 of file socketcan.c.

◆ socketcanGetSocketFileDescriptor()

int socketcanGetSocketFileDescriptor ( const SocketCANInstance * ins )

Returns the file descriptor of the CAN socket. Can be used for external IO multiplexing.

Definition at line 180 of file socketcan.c.

◆ socketcanInit()

int16_t socketcanInit	(	SocketCANInstance *	out_ins,
		const char *	can_iface_name
	)

Initializes the SocketCAN instance. Returns 0 on success, negative on error.

Definition at line 45 of file socketcan.c.

◆ socketcanReceive()

int16_t socketcanReceive	(	SocketCANInstance *	ins,
		CanardCANFrame *	out_frame,
		int32_t	timeout_msec
	)

Receives a CanardCANFrame from the CAN socket. Use negative timeout to block infinitely. Returns 1 on successful reception, 0 on timeout, negative on error.

Definition at line 136 of file socketcan.c.

◆ socketcanTransmit()

int16_t socketcanTransmit	(	SocketCANInstance *	ins,
		const CanardCANFrame *	frame,
		int32_t	timeout_msec
	)

Transmits a CanardCANFrame to the CAN socket. Use negative timeout to block infinitely. Returns 1 on successful transmission, 0 on timeout, negative on error.

Definition at line 96 of file socketcan.c.

Macros

Functions