diff --git a/usb-detect/10-usb-detect.rules b/usb-detect/10-usb-detect.rules
index 98c55a8..0e3f52a 100644
--- a/usb-detect/10-usb-detect.rules
+++ b/usb-detect/10-usb-detect.rules
@@ -1 +1 @@
-ACTION=="add", KERNEL=="sd[b-z]1", SUBSYSTEM=="block", RUN+="/home/kske/usb.sh"
+ACTION=="add", KERNEL=="sd[a-z]1", SUBSYSTEM=="block", RUN+="/home/pi/git/opus-data/usb-detect/usb-detect.sh"
diff --git a/usb-detect/usb-detect.sh b/usb-detect/usb-detect.sh
index bd5c921..a753ceb 100755
--- a/usb-detect/usb-detect.sh
+++ b/usb-detect/usb-detect.sh
@@ -11,7 +11,10 @@ LOGFILE=/var/log/usb-detect.log
 exec &>> $LOGFILE
 
 # Processing function (file name is passed as parameter)
-PROCESS_FUNC=cat
+PROC_FUNC="Rscript /home/pi/git/opus-data/OpusData.R"
+
+# Directory inside which the processing function is run
+PROC_DIR="/home/pi/git/opus-data/"
 
 echo "USB device detected at $DEVNAME"
 
@@ -30,7 +33,10 @@ for f in $MOUNTPOINT/*.[0-9]
 do
 	found=1
 	echo "Processing $f..."
-	$PROCESS_FUNC $f
+	(
+		cd $PROC_DIR
+		$PROC_FUNC $f
+	) || echo "Failed executing $PROC_FUNC $f in $PROC_DIR"
 	echo "Removing $f..."
 	rm $f
 done