diff --git a/xymon/plugins/client/ext/smart b/xymon/plugins/client/ext/smart
index 35f4a8b..4dc6094 100755
--- a/xymon/plugins/client/ext/smart
+++ b/xymon/plugins/client/ext/smart
@@ -56,6 +56,7 @@ is_disk_support_smart() {
 }
 ## }}}
 ## Test the type of disk with smartctl {{{
+## Cause the scanned one might not be the one to use
 choose_correct_type() {
 	_disk="${1}"
 	_scanned_type="${2}"
@@ -89,7 +90,7 @@ true > /tmp/dscan
 # Get the list of all available devices
 smartctl --scan >> /tmp/dscan
 
-# TODO: Test if the file is not empty
+# If the file is not empty
 if test -s /tmp/dscan; then
 	while IFS= read -r LINE; do
 		## Get device path
@@ -111,11 +112,12 @@ if test -s /tmp/dscan; then
 			DCODE=$?
 		fi
 
+		## Test health status
 		DSTBY=$(( DCODE & 2 ))
 		DFAIL=$(( DCODE & 8 ))
 		DWARN=$(( DCODE & 32 ))
 
-		## Give a weight to each to color to easily get the page status
+		## According to health, give a weight to each color to easily get the page status
 		if test $DSTBY -ne 0
 		then
 			COLOR="4&clear"
@@ -129,8 +131,10 @@ if test -s /tmp/dscan; then
 			COLOR="3&green"
 		fi
 
+		## For summary
 		echo "${COLOR} $DISK ${TYPE}"
 
+		## For detailed informations
 		{
 			echo "${COLOR} $DISK ${TYPE}" | cut -c2-
 			echo ""
@@ -141,6 +145,7 @@ if test -s /tmp/dscan; then
 		} >> /tmp/dres
 	done < /tmp/dscan >> /tmp/dcheck
 
+# If the file is empty
 else
 	echo "1&red Error while scanning devices with smartctl" >> /tmp/dcheck
 fi
@@ -148,6 +153,7 @@ fi
 # Set the global color according to the highest alert
 COLOR=$(< /tmp/dcheck awk '{print $1}' | sort | uniq | head -1 | cut -c3-)
 
+# Send informations to Xymon server
 $XYMON "${XYMSRV}" "status ${MACHINE}.smart ${COLOR} SMART health check
 
 $(< /tmp/dcheck cut -c2-)
@@ -157,6 +163,7 @@ $(< /tmp/dcheck cut -c2-)
 $(cat /tmp/dres)
 "
 
+# Clean temp files
 rm -f -- /tmp/dres /tmp/dcheck /tmp/dscan
 
 exit 0