add exception handling

app/src/main/java/com/example/hpostesting/presentation/testRight/UsbService.kt

@@ -33,7 +33,8 @@ class UsbService : Service() {
     var bus: UsbServiceListener? = null
 
     fun connect(driver: UsbSerialDriver, connection: UsbDeviceConnection) {
-        mPort = driver.ports[0] // Most devices have just one port (port 0)
+        try {
+            mPort = driver.ports[0]
             mPort.open(connection)
             mPort.setParameters(9600, 8, UsbSerialPort.STOPBITS_1, UsbSerialPort.PARITY_NONE)
             isUsbConnected = true
@@ -49,16 +50,31 @@ class UsbService : Service() {
                         Log.e(TAG, "onRunError() called inside eventDrivenWrite()")
                         listener?.onUsbError(e)
                     }
-
                 })
-        usbIoManager.start();
+
+            usbIoManager.start()
+        } catch (ioException: IOException) {
+            Log.e(TAG, "IOException during USB connection: ${ioException.message}", ioException)
+            listener?.onUsbError(ioException)
+        }  catch (e: Exception) {
+            Log.e(TAG, "Error connecting USB: ${e.message}", e)
+            listener?.onUsbError(e)
+        }
     }
 
     fun disconnect() {
+        try {
             if (isUsbConnected) {
                 mPort.close()
-            isUsbConnected = false;
+                isUsbConnected = false
-            Log.d(TAG, "My Usb disconnected:: ${mPort.driver}")
+                Log.d(TAG, "USB Port closed successfully:: ${mPort.driver}")
+            } else {
+                Log.d(TAG, "USB Port is not connected")
+            }
+        } catch (e: IOException) {
+            Log.e(TAG, "Error closing USB Port: ${e.message}", e)
+        } catch (e: Exception) {
+            Log.e(TAG, "An unexpected error occurred: ${e.message}", e)
         }
     }