Companion

All CONTROL_LINE_XXX_CHANGE values OR'd together

Flag to set if you want to get notifications on Carrier Detect line change

Flag to set if you want to get notifications on Clear To Send line change

Flag to set if you want to get notifications on Data Set Ready line change

Flag to set if you want to get notifications on Data Terminal Ready line change

Flag to set if you want to get notifications on Ring Indicator line change

Flag to set if you want to get notifications on Request To Send line change

Flag to set if you do not want to get any control line notifications