Re: API calls

[Wolfgang <wutz@unterderbruecke.de>]

#include <sys/ioctl.h>
#include <net/if.h>
#include <string.h>
#include <linux/can/j1939.h>
#include <linux/can.h>
#include <unistd.h>
#include <sys/socket.h>
#include <stdio.h>


int main (void)
{
	int s;
	s = socket(PF_CAN, SOCK_DGRAM, CAN_J1939);
	    
	struct sockaddr_can addr;

    memset(&addr, 0, sizeof(addr));
    addr.can_ifindex = if_nametoindex("can0");
    
    addr.can_addr.j1939.name = J1939_NO_NAME;
    addr.can_addr.j1939.addr = 0x80;
    addr.can_addr.j1939.pgn = 0xFFD0;
    addr.can_family = AF_CAN;  
   
	struct can_frame frame;
	   
      
    if (bind(s, (void *)&addr, sizeof(addr))<0)
    {
    perror ("bind failed");
    }
      		
	  if (send(s, frame.data, sizeof(frame.data), 0)<0)
   		{
  		 perror ("send failed");
  		 }
   
return 0;
}

It is working, the ID is composed 18FFD080, thanks. I also tried recv() - it is 
working as well. 
Is it possible to implement only the bytes you really need from the data array,
because the dlc is always 8.
So sendto() is used to send to a specific address, at the moment I am always
doing broadcast?

--Wolfgang