-static int mcf_ioctl(struct uart_port *port, unsigned int cmd,
- unsigned long arg)
-{
- switch (cmd) {
- case TIOCSRS485: {
- struct serial_rs485 rs485;
- if (copy_from_user(&rs485, (struct serial_rs485 *)arg,
- sizeof(struct serial_rs485)))
- return -EFAULT;
- mcf_config_rs485(port, &rs485);
- break;
- }
- case TIOCGRS485: {
- struct mcf_uart *pp = container_of(port, struct mcf_uart, port);
- if (copy_to_user((struct serial_rs485 *)arg, &pp->rs485,
- sizeof(struct serial_rs485)))
- return -EFAULT;
- break;
- }
- default:
- return -ENOIOCTLCMD;
- }