diff --git a/src/logger.c b/src/logger.c
index 39f1b5c..d8c7525 100644
--- a/src/logger.c
+++ b/src/logger.c
@@ -12,12 +12,17 @@
 #include "utils.h"
 #include <time.h>
 
+// Global:
+char __client*;
+char __logdir*;
+int __logfrequency,
+
 void start(char *power_path, char *busid, char *chipaddr);
 
 int main (int argc, char *argv [])
 {
   if(argc != 3){
-    printf("Usage: %s <logdir> <client> <logfrequency>",argv[0]);
+    printf("Usage: %s <abslogdir> <client> <logfrequency>",argv[0]);
     exit(1);
   }
 
diff --git a/src/utils.h b/src/utils.h
index 8e15094..5da7feb 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -1,3 +1,5 @@
 #define STR(symbol) #symbol
 #define STRINGIFY(symbol) STR(symbol)
 
+#define INA260_SYSFS "/sys/kernel/ina260"
+#define INA260_POWER_REGISTER "registers/power"