diff --git a/devicemapper/log.go b/devicemapper/log.go
new file mode 100644
index 0000000..cee5e54
--- /dev/null
+++ b/devicemapper/log.go
@@ -0,0 +1,11 @@
+package devicemapper
+
+// definitions from lvm2 lib/log/log.h
+const (
+	LogLevelFatal  = 2 + iota // _LOG_FATAL
+	LogLevelErr               // _LOG_ERR
+	LogLevelWarn              // _LOG_WARN
+	LogLevelNotice            // _LOG_NOTICE
+	LogLevelInfo              // _LOG_INFO
+	LogLevelDebug             // _LOG_DEBUG
+)