diff --git a/Config_Positioner.md b/Config_Positioner.md
index 9c1910c..d4a2fed 100644
--- a/Config_Positioner.md
+++ b/Config_Positioner.md
@@ -299,8 +299,13 @@ An Orchestra detector is a special type of **readOnly** positioner that uses Orc
  **Default**: 0
 
 
-
 ## SmarActUsb
+
+**deviceName**::<BR>
+&emsp;String value defines the name of the device in the linux USB bus.<BR>
+&emsp;**Default**: empty string
+
+
 ## SmarActTcp
 ## Interferometer
 ## BeamShutter