commit 2021-12-16]11:54:54

cli.go

@@ -65,14 +65,13 @@ func AddRecvListener(h EventHandler) {
 // }
 
 func Run() error {
-	iface, err := puserial.InitDevice()
+	ifaces, err := puserial.InitDevice()
 	if err != nil {
-		if err.Error() != "USB Not found" {
-			return err
-		}
-	} else {
-		// _managerObj.onAdd(iface)
-		_managerObj.onAdded(iface)
+		return err
+	}
+
+	for _, e := range ifaces {
+		_managerObj.onAdded(e)
 	}
 
 	go puserial.WatchNewDevice(ctx, ch_discover)

puserial/serial.go

@@ -2,7 +2,6 @@ package puserial
 
 import (
 	"context"
-	"errors"
 	"fmt"
 	"io/ioutil"
 	"path/filepath"
@@ -11,19 +10,20 @@ import (
 	"github.com/rjeczalik/notify"
 )
 
-func InitDevice() (string, error) {
+func InitDevice() ([]string, error) {
 	fs, err := ioutil.ReadDir("/dev")
 	if err != nil {
-		return "", err
+		return nil, err
 	}
 
+	var result []string = nil
 	for _, f := range fs {
 		if strings.Contains(f.Name(), "ttyACM") {
-			return filepath.Join("/dev", f.Name()), nil
+			result = append(result, filepath.Join("/dev", f.Name()))
 		}
 	}
 
-	return "", errors.New("USB Not found")
+	return result, nil
 }
 
 func WatchNewDevice(ctx context.Context, ch_discover chan<- notify.EventInfo) error {