Checksumming and USB port searching works

usb/usb.go

@@ -0,0 +1,67 @@
+package usb
+
+import (
+	"errors"
+	"fmt"
+	"github.com/albenik/go-serial/enumerator"
+	"log"
+)
+
+/*
+ USB Product IDs of the SCS devices:
+    0xD010 SCS PTC-IIusb
+    0xD011 SCS Tracker / DSP TNC
+    0xD012 SCS P4dragon DR-7800
+    0xD013 SCS P4dragon DR-7400
+    0xD014 - not used
+    0xD015 SCS PTC-IIIusb
+    0xD016 - not used
+    0xD017 - not used
+*/
+
+type Scsid struct {
+	Port, id, Name string
+	Baudrate       int
+}
+
+var scsids map[string]string = map[string]string{
+	"d010": "SCS PTC-IIusb",
+	"d011": "SCS Tracker / DSP TNC",
+	"d012": "SCS P4dragon DR-7800",
+	"d013": "SCS P4dragon DR-7400",
+	"d015": "SCS PTC-IIIusb"}
+
+var scsbaudrates map[string]int = map[string]int{
+	"d010": 115200,
+	"d011": 38400,
+	"d012": 829400,
+	"d013": 829400,
+	"d015": 115200}
+
+func FindSCS() ([]Scsid, error) {
+
+	foundids := []Scsid{}
+	ports, err := enumerator.GetDetailedPortsList()
+	if err != nil {
+		log.Fatal(err)
+		return nil, err
+	}
+	if len(ports) == 0 {
+		return nil, errors.New("No serial ports found")
+	}
+
+	for _, port := range ports {
+		fmt.Printf("Found Port: %s\n", port.Name)
+		if port.IsUSB {
+			// fmt.Printf("   USB ID     %s:%s\n", Port.VID, Port.PID)
+			// fmt.Printf("   USB serial %s\n", Port.SerialNumber)
+			if port.VID == "0403" {
+				if _, ok := scsids[port.PID]; ok {
+					foundids = append(foundids, Scsid{Port: port.Name, id: port.PID, Name: scsids[port.PID], Baudrate: scsbaudrates[port.PID]})
+				}
+			}
+		}
+	}
+	return foundids, nil
+
+}