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Code Issues Releases Wiki Activity

improve error quality + test for PR #339

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kai-morich
2021-01-31 19:56:43 +01:00
parent fc610a9764
commit 85d0348844
2 changed files with 4 additions and 1 deletions
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usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/CommonUsbSerialPort.java
+3
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@@ -93,6 +93,9 @@ public abstract class CommonUsbSerialPort implements UsbSerialPort {
if (mConnection != null) {
throw new IOException("Already open");
}
if(connection == null) {
throw new IllegalArgumentException("Connection is null");
}
mConnection = connection;
try {
openInt(connection);