False-Positives while binding to CAN-interfaces on Colibri-iMX6

Technical Support
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8

Hi Ajay

No, they do not.

If I start that program a second (and third) time, bind errors out on all invocations.

root@colibri-imx6:~# ./can
vcan0 at index 1995515472
Error in socket bind: No such device
root@colibri-imx6:~# ./can
vcan0 at index 1995986512
Error in socket bind: No such device
root@colibri-imx6:~# ./can
vcan0 at index 1995888208
Error in socket bind: No such device

If I add a second call to bind in the program, that second call does fail too.

if (bind (s, (struct sockaddr *) &addr, sizeof (addr)) < 0)
{
  perror ("Error in socket bind");
  if (bind (s, (struct sockaddr *) &addr, sizeof (addr)) < 0)
  {
    perror ("Error in socket bind, 2nd time");
    return -2;
  }
}

.

root@colibri-imx6:~# ./can2
vcan0 at index 1996314192
Error in socket bind: No such device
Error in socket bind, 2nd time: No such device

Max