DS_PARAM_FLOW_CTL
{ DS_PARAM_FLOW_CTL, .val.ui = CTSXON }
case DS_PARAM_FLOW_CTL: /* Hardware flow control */
pe[5].param = DS_PARAM_FLOW_CTL;
case DS_PARAM_FLOW_CTL:
case DS_PARAM_FLOW_CTL:
case DS_PARAM_FLOW_CTL: