nothing to see here

android/app/src/main/java/com/rusefi/app/rusEFI.java

@@ -17,14 +17,34 @@
 package com.rusefi.app;
 
 import android.app.Activity;
+import android.content.Context;
 import android.content.Intent;
+import android.hardware.usb.UsbDevice;
+import android.hardware.usb.UsbDeviceConnection;
+import android.hardware.usb.UsbManager;
 import android.os.Bundle;
+import android.view.View;
 import android.widget.TextView;
 
+import com.hoho.android.usbserial.driver.CdcAcmSerialDriver;
+import com.hoho.android.usbserial.driver.ProbeTable;
+import com.hoho.android.usbserial.driver.UsbSerialDriver;
+import com.hoho.android.usbserial.driver.UsbSerialPort;
+import com.hoho.android.usbserial.driver.UsbSerialProber;
+import com.hoho.android.usbserial.util.SerialInputOutputManager;
+
+import java.io.IOException;
+import java.util.Date;
+import java.util.List;
+import java.util.concurrent.Executors;
+
 public class rusEFI extends Activity {
+    private static final int VENDOR_ST = 0x0483;
+    private static final int ST_CDC = 0x5740;
 
     /* UI elements */
-    private TextView mStatusView, mResultView;
+    private TextView mStatusView;
+    private TextView mResultView;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -34,8 +54,79 @@ public class rusEFI extends Activity {
         mStatusView = (TextView) findViewById(R.id.text_status);
         mResultView = (TextView) findViewById(R.id.text_result);
 
+
         mStatusView.setText("Hello");
 
+        handleButton();
+    }
+
+    private void handleButton() {
+        mResultView.append("rusEFI app v0.0000001\n");
+        UsbManager manager = (UsbManager) getSystemService(Context.USB_SERVICE);
+
+//        listDevices(manager);
+
+        ProbeTable customTable = new ProbeTable();
+        customTable.addProduct(VENDOR_ST, ST_CDC, CdcAcmSerialDriver.class);
+        UsbSerialProber prober = new UsbSerialProber(customTable);
+        // todo: handle both custom ST CDC and default hard-coded USB chips
+
+        List<UsbSerialDriver> availableDrivers = prober.findAllDrivers(manager);
+        if (availableDrivers.isEmpty()) {
+            mStatusView.setText("Not connected");
+            mResultView.append("No devices " + new Date());
+            return;
+        }
+        mStatusView.setText("rusEFI: " + availableDrivers.size() + " device(s)");
+
+        UsbSerialDriver driver = availableDrivers.get(0);
+        UsbDeviceConnection connection = manager.openDevice(driver.getDevice());
+        if (connection == null) {
+            // add UsbManager.requestPermission(driver.getDevice(), ..) handling here
+            mStatusView.setText("Unable to open");
+            return;
+        }
+
+        UsbSerialPort port = driver.getPorts().get(0); // Most devices have just one port (port 0)
+        try {
+            port.open(connection);
+            port.setParameters(115200, 8, UsbSerialPort.STOPBITS_1, UsbSerialPort.PARITY_NONE);
+
+            port.write("t".getBytes(), 500);
+
+            SerialInputOutputManager usbIoManager = new SerialInputOutputManager(port, new SerialInputOutputManager.Listener() {
+                @Override
+                public void onNewData(final byte[] data) {
+                    runOnUiThread(new Runnable() {
+                        @Override
+                        public void run() {
+                            mResultView.append(new String(data));
+                        }
+                    });
+                }
+
+                @Override
+                public void onRunError(Exception e) {
+                }
+            });
+            Executors.newSingleThreadExecutor().submit(usbIoManager);
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private void listDevices(UsbManager manager) {
+        for (final UsbDevice usbDevice : manager.getDeviceList().values()) {
+            mResultView.append(usbDevice.getDeviceName() + " " + usbDevice.getVendorId() + " " + usbDevice.getProductId() + "\n");
+        }
+    }
+
+    /**
+     * Called when the user touches the button
+     */
+    public void sendMessage(View view) {
+        handleButton();
     }
 
     @Override

android/app/src/main/res/layout/activity_usb.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical"
@@ -12,6 +13,14 @@
         android:layout_height="wrap_content"
         android:textAppearance="?android:textAppearanceMedium"/>
 
+    <Button
+        android:id="@+id/button"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Try"
+        android:onClick="sendMessage"
+        />
+
     <ScrollView
         android:layout_width="match_parent"
         android:layout_height="match_parent">