1 files changed, 11 insertions, 6 deletions
diff --git a/src/kernel/serial.h b/src/kernel/serial.h
index f0465d0..bb12edb 100644
--- a/src/kernel/serial.h
+++ b/src/kernel/serial.h
@@ -1,10 +1,15 @@
+#ifndef SERIAL_H
+#define SERIAL_H
+
 #include <stdint.h>
 #include <stdbool.h>
 
 bool serr();
-void sinit();
-void sout(uint8_t b);
-void soutsz(uint8_t *s);
-void soutsn(uint8_t *s, uint8_t n);
-uint8_t sin();
-void sinsn(uint8_t *s, uint8_t n);
-\ No newline at end of file
+void init_serial();
+void sout(char b);
+void soutsz(char *s);
+void soutsn(char *s, uint8_t n);
+char sin();
+void sinsn(char *s, uint8_t n);
+
+#endif
+\ No newline at end of file