PORT_AMBA
return port->type == PORT_AMBA ? "AMBA" : NULL;
port->type = PORT_AMBA;
if (ser->type != PORT_UNKNOWN && ser->type != PORT_AMBA)
return uap->port.type == PORT_AMBA ? uap->type : NULL;
port->type = PORT_AMBA;
if (ser->type != PORT_UNKNOWN && ser->type != PORT_AMBA)