diff --git a/controls-serial/src/jvmMain/kotlin/space/kscience/controls/serial/AsynchronousSerialPort.kt b/controls-serial/src/jvmMain/kotlin/space/kscience/controls/serial/AsynchronousSerialPort.kt
index a9c4ede..b581405 100644
--- a/controls-serial/src/jvmMain/kotlin/space/kscience/controls/serial/AsynchronousSerialPort.kt
+++ b/controls-serial/src/jvmMain/kotlin/space/kscience/controls/serial/AsynchronousSerialPort.kt
@@ -29,7 +29,7 @@ public class AsynchronousSerialPort(
 
     private val serialPortListener = object : SerialPortDataListener {
         override fun getListeningEvents(): Int =
-            SerialPort.LISTENING_EVENT_DATA_RECEIVED and SerialPort.LISTENING_EVENT_DATA_AVAILABLE
+            SerialPort.LISTENING_EVENT_DATA_RECEIVED or SerialPort.LISTENING_EVENT_DATA_AVAILABLE
 
         override fun serialEvent(event: SerialPortEvent) {
             when (event.eventType) {
diff --git a/controls-serial/src/jvmMain/kotlin/space/kscience/controls/serial/SerialPortPlugin.kt b/controls-serial/src/jvmMain/kotlin/space/kscience/controls/serial/SerialPortPlugin.kt
index f0d099f..b43fc00 100644
--- a/controls-serial/src/jvmMain/kotlin/space/kscience/controls/serial/SerialPortPlugin.kt
+++ b/controls-serial/src/jvmMain/kotlin/space/kscience/controls/serial/SerialPortPlugin.kt
@@ -11,6 +11,8 @@ import space.kscience.dataforge.names.asName
 
 public class SerialPortPlugin : AbstractPlugin() {
 
+    public val ports: Ports by require(Ports)
+
     override val tag: PluginTag get() = Companion.tag
 
     override fun content(target: String): Map<Name, Any> = when (target) {