safeguards added in some devices

src/com/felhr/usbserial/CDCSerialDevice.java

@@ -168,6 +168,8 @@ public class CDCSerialDevice extends UsbSerialDevice
 		case UsbSerialInterface.DATA_BITS_8:
 			data[6] = 0x08;
 			break;
+		default:
+			return;
 		}
 
 		setControlCommand(CDC_SET_LINE_CODING, 0, data);
@@ -189,6 +191,8 @@ public class CDCSerialDevice extends UsbSerialDevice
 		case UsbSerialInterface.STOP_BITS_2:
 			data[4] = 0x02;
 			break;
+		default:
+			return;
 		}
 
 		setControlCommand(CDC_SET_LINE_CODING, 0, data);
@@ -217,6 +221,8 @@ public class CDCSerialDevice extends UsbSerialDevice
 		case UsbSerialInterface.PARITY_SPACE:
 			data[5] = 0x04;
 			break;
+		default:
+			return;
 		}
 
 		setControlCommand(CDC_SET_LINE_CODING, 0, data);

src/com/felhr/usbserial/CP2102SerialDevice.java

@@ -271,6 +271,8 @@ public class CP2102SerialDevice extends UsbSerialDevice
 			setControlCommand(CP210x_SET_CHARS, 0, dataChars);
 			setControlCommand(CP210x_SET_FLOW, 0, dataXONXOFF);
 			break;
+		default:
+			return;
 		}
 	}
 	

src/com/felhr/usbserial/FTDISerialDevice.java

@@ -164,6 +164,8 @@ public class FTDISerialDevice extends UsbSerialDevice
 			value = FTDI_BAUDRATE_921600;
 		else if(baudRate > 921600)
 			value = FTDI_BAUDRATE_921600;
+		else
+			value = FTDI_BAUDRATE_9600;
 		setControlCommand(FTDI_SIO_SET_BAUD_RATE, value, 0, null);	
 	}
 
@@ -200,6 +202,13 @@ public class FTDISerialDevice extends UsbSerialDevice
 			currentSioSetData |= (1 << 3);
 			setControlCommand(FTDI_SIO_SET_DATA, currentSioSetData, 0, null);
 			break;
+		default:
+			currentSioSetData &= ~1;
+			currentSioSetData &= ~(1 << 1);
+			currentSioSetData &= ~(1 << 2);
+			currentSioSetData |= (1 << 3);
+			setControlCommand(FTDI_SIO_SET_DATA, currentSioSetData, 0, null);
+			break;
 		}
 		
 	}
@@ -227,6 +236,11 @@ public class FTDISerialDevice extends UsbSerialDevice
 			currentSioSetData &= ~(1 << 13);
 			setControlCommand(FTDI_SIO_SET_DATA, currentSioSetData, 0, null);
 			break;
+		default:
+			currentSioSetData &= ~(1 << 11);
+			currentSioSetData &= ~(1 << 12);
+			currentSioSetData &= ~(1 << 13);
+			setControlCommand(FTDI_SIO_SET_DATA, currentSioSetData, 0, null);	
 		}
 		
 	}
@@ -266,6 +280,12 @@ public class FTDISerialDevice extends UsbSerialDevice
 			currentSioSetData |= (1 << 10);
 			setControlCommand(FTDI_SIO_SET_DATA, currentSioSetData, 0, null);
 			break;
+		default:
+			currentSioSetData &= ~(1 << 8);
+			currentSioSetData &= ~(1 << 9);
+			currentSioSetData &= ~(1 << 10);
+			setControlCommand(FTDI_SIO_SET_DATA, currentSioSetData, 0, null);
+			break;
 		}
 		
 	}
@@ -291,6 +311,9 @@ public class FTDISerialDevice extends UsbSerialDevice
 			int wValue = 0x1311;
 			setControlCommand(FTDI_SIO_SET_FLOW_CTRL, wValue, indexXONXOFF , null);
 			break;
+		default:
+			setControlCommand(FTDI_SIO_SET_FLOW_CTRL, FTDI_SET_FLOW_CTRL_DEFAULT, 0, null);
+			break;
 		}
 	}
 	

src/com/felhr/usbserial/PL2303SerialDevice.java

@@ -175,6 +175,8 @@ public class PL2303SerialDevice extends UsbSerialDevice
 				setControlCommand(PL2303_REQTYPE_HOST2DEVICE, PL2303_SET_LINE_CODING, 0x0000, 0, defaultSetLine);
 			}
 			break;
+		default:
+			return;
 		}
 		
 	}
@@ -205,6 +207,8 @@ public class PL2303SerialDevice extends UsbSerialDevice
 				setControlCommand(PL2303_REQTYPE_HOST2DEVICE, PL2303_SET_LINE_CODING, 0x0000, 0, defaultSetLine);
 			}
 			break;
+		default:
+			return;
 		}
 	}
 
@@ -248,6 +252,8 @@ public class PL2303SerialDevice extends UsbSerialDevice
 				setControlCommand(PL2303_REQTYPE_HOST2DEVICE, PL2303_SET_LINE_CODING, 0x0000, 0, defaultSetLine);	
 			}
 			break;
+		default:
+			return;
 		}
 		
 	}