X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=src%2FSensorDevice.hh;h=b6830344bfd516270392c6bc86fc0807e69ec0d5;hb=73fdd5072c55654da0ef06f14762ae2c1a3c739b;hp=1eea03165a57f229ab0527b499c114fab99aa0d8;hpb=a825b61a8faebeca8b8550c57ac197f67bc110f1;p=libplp.git

diff --git a/src/SensorDevice.hh b/src/SensorDevice.hh
index 1eea031..b683034 100644
--- a/src/SensorDevice.hh
+++ b/src/SensorDevice.hh
@@ -19,7 +19,8 @@ namespace plp {
 	class SensorDevice : public Device {
 		public:
 			SensorDevice(std::string id_param, std::string type_param) : Device(id_param, type_param) {}
-			virtual DataReader *get_device_data() = 0;
+			virtual ~SensorDevice() {}
+			virtual const DataReader *get_device_data() = 0;
 			virtual string get_unit() = 0;
 			virtual plp::Data *get_data() = 0;
 	};