add unix domain socket

internal/util/serial/serial.go

@@ -10,7 +10,6 @@ import (
 const (
 	DefaultPort     = "COM1"
 	DefaultBaudRate = 9600
-	DefaultParity   = "none"
 )
 
 // COM1,9600,odd
@@ -34,6 +33,25 @@ func ParseConfigFromAddr(addr string) *goserial.Config {
 	return cfg
 }
 
+func AddrFromConfig(cfg *goserial.Config) string {
+	ss := []string{
+		cfg.Name,
+		strconv.Itoa(cfg.Baud),
+	}
+
+	switch cfg.Parity {
+	case goserial.ParityEven:
+		ss = append(ss, "even")
+	case goserial.ParityOdd:
+		ss = append(ss, "odd")
+	case goserial.ParityMark:
+		ss = append(ss, "mark")
+	case goserial.ParitySpace:
+		ss = append(ss, "space")
+	}
+	return strings.Join(ss, ",")
+}
+
 func parseParity(s string) goserial.Parity {
 	switch strings.ToLower(s) {
 	case "o", "odd":