in devices/ipoctal.c [141:156]
static int ipoctal_get_icount(struct tty_struct *tty,
struct serial_icounter_struct *icount)
{
struct ipoctal_channel *channel = tty->driver_data;
icount->cts = 0;
icount->dsr = 0;
icount->rng = 0;
icount->dcd = 0;
icount->rx = channel->stats.rx;
icount->tx = channel->stats.tx;
icount->frame = channel->stats.framing_err;
icount->parity = channel->stats.parity_err;
icount->brk = channel->stats.rcv_break;
return 0;
}