前言
android 工业平板RK3399-all
调试有关串口的设备 如何获取对应的串口设备及串口名字
先来一张图说明
获取串口
SerialPortFinder mSerialPortFinder;//串口设备搜索
mSerialPortFinder = new SerialPortFinder();
String[] entryValues = mSerialPortFinder.getAllDevicesPath();
List<String> allDevices = new ArrayList<String>();
for (int i = 0; i < entryValues.length; i++) {
allDevices.add(entryValues[i]);
}
SerialPortFinder
public class Driver {
public Driver(String name, String root) {
mDriverName = name;
mDeviceRoot = root;
}
private String mDriverName;
private String mDeviceRoot;
Vector<File> mDevices = null;
public Vector<File> getDevices() {
if (mDevices == null) {
mDevices = new Vector<File>();
File dev = new File("/dev");
File[] files = dev.listFiles();
int i;
for (i=0; i<files.length; i++) {
if (files[i].getAbsolutePath().startsWith(mDeviceRoot)) {
Log.d(TAG, "Found new device: " + files[i]);
mDevices.add(files[i]);
}
}
}
return mDevices;
}
public String getName() {
return mDriverName;
}
}
private static final String TAG = "SerialPort";
private Vector<Driver> mDrivers = null;
Vector<Driver> getDrivers() throws IOException {
if (mDrivers == null) {
mDrivers = new Vector<Driver>();
LineNumberReader r = new LineNumberReader(new FileReader("/proc/tty/drivers"));
String l;
while((l = r.readLine()) != null) {
// Issue 3:
// Since driver name may contain spaces, we do not extract driver name with split()
String drivername = l.substring(0, 0x15).trim();
String[] w = l.split(" +");
if ((w.length >= 5) && (w[w.length-1].equals("serial"))) {
Log.d(TAG, "Found new driver " + drivername + " on " + w[w.length-4]);
mDrivers.add(new Driver(drivername, w[w.length-4]));
}
}
r.close();
}
return mDrivers;
}
public String[] getAllDevices() {
Vector<String> devices = new Vector<String>();
// Parse each driver
Iterator<Driver> itdriv;
try {
itdriv = getDrivers().iterator();
while(itdriv.hasNext()) {
Driver driver = itdriv.next();
Iterator<File> itdev = driver.getDevices().iterator();
while(itdev.hasNext()) {
String device = itdev.next().getName();
String value = String.format("%s (%s)", device, driver.getName());
devices.add(value);
}
}
} catch (IOException e) {
e.printStackTrace();
}
return devices.toArray(new String[devices.size()]);
}
public String[] getAllDevicesPath() {
Vector<String> devices = new Vector<String>();
// Parse each driver
Iterator<Driver> itdriv;
try {
itdriv = getDrivers().iterator();
while(itdriv.hasNext()) {
Driver driver = itdriv.next();
Iterator<File> itdev = driver.getDevices().iterator();
while(itdev.hasNext()) {
String device = itdev.next().getAbsolutePath();
devices.add(device);
}
}
} catch (IOException e) {
e.printStackTrace();
}
return devices.toArray(new String[devices.size()]);
}
完整代码
下载地址：
Android 通过串口获取设备号 Android 通过串口获取设备号 android串口测试工具 完整解析
