import Foundation public enum DataBitsSize { case bits5 case bits6 case bits7 case bits8 var flagValue: tcflag_t { switch self { case .bits5: return tcflag_t(CS5) case .bits6: return tcflag_t(CS6) case .bits7: return tcflag_t(CS7) case .bits8: return tcflag_t(CS8) } } }