HI ,
I am using socket CAN with Atmel 9263 board , And CAN Messages Extended ID is
truncated when I send message using PCAN USB- analyzer .
I am using read and write calls for message sending and receiving in the board.
I am not using any filters and using CAN_RAW .
Anybody has idea on this issue ?
My Code looks like this
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <linux/can.h>
#include <linux/can/raw.h>
#include <string.h>
/* At time of writing, these constants are not defined in the headers */
#ifndef PF_CAN
#define PF_CAN 29
#endif
#ifndef AF_CAN
#define AF_CAN PF_CAN
#endif
/* ... */
/* Somewhere in your app */
/* Create the socket */
int skt = socket( PF_CAN, SOCK_RAW, CAN_RAW );
/* Locate the interface you wish to use */
struct ifreq ifr;
strcpy(ifr.ifr_name, "can0");
ioctl(skt, SIOCGIFINDEX, &ifr); /* ifr.ifr_ifindex gets filled
* with that device's index */
/* Select that CAN interface, and bind the socket to it. */
struct sockaddr_can addr;
addr.can_family = AF_CAN;
addr.can_ifindex = ifr.ifr_ifindex;
bind( skt, (struct sockaddr*)&addr, sizeof(addr) );
/* Send a message to the CAN bus */
struct can_frame frame;
frame.can_id = 0x123;
strcpy( &frame.data, "foo" );
frame.can_dlc = strlen( &frame.data );
int bytes_sent = write( skt, &frame, sizeof(frame) );
/* Read a message back from the CAN bus */
int bytes_read = read( skt, &frame, sizeof(frame) );
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