Linux added.

Former-commit-id: 0119722025c2edbe0d590ee3afee1323d4de2b21

Author: johnlauer

seriallist_linux.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	//"fmt"
+	//"github.com/tarm/goserial"
+	"log"
+	"os"
+	"strings"
+	//"encoding/binary"
+	//"strconv"
+	//"syscall"
+	//"fmt"
+	"io/ioutil"
+)
+
+func getList() ([]OsSerialPort, os.SyscallError) {
+	//return getListViaWmiPnpEntity()
+	return getListViaTtyList()
+}
+
+func getListViaTtyList() ([]OsSerialPort, os.SyscallError) {
+	var err os.SyscallError
+
+	log.Println("getting serial list on darwin")
+
+	// make buffer of 100 max serial ports
+	// return a slice
+	list := make([]OsSerialPort, 100)
+
+	files, _ := ioutil.ReadDir("/dev/")
+	ctr := 0
+	for _, f := range files {
+		if strings.HasPrefix(f.Name(), "tty") {
+			// it is a legitimate serial port
+			list[ctr].Name = "/dev/" + f.Name()
+			list[ctr].FriendlyName = f.Name()
+			log.Println("Added serial port to list: ", list[ctr])
+			ctr++
+		}
+		// stop-gap in case going beyond 100 (which should never happen)
+		// i mean, really, who has more than 100 serial ports?
+		if ctr > 99 {
+			ctr = 99
+		}
+		//fmt.Println(f.Name())
+		//fmt.Println(f.)
+	}
+	/*
+		list := make([]OsSerialPort, 3)
+		list[0].Name = "tty.serial1"
+		list[0].FriendlyName = "tty.serial1"
+		list[1].Name = "tty.serial2"
+		list[1].FriendlyName = "tty.serial2"
+		list[2].Name = "tty.Bluetooth-Modem"
+		list[2].FriendlyName = "tty.Bluetooth-Modem"
+	*/
+
+	return list[0:ctr], err
+}