testing read func call behavior

tests.c

@@ -9,13 +9,18 @@ void test_serial_write() {
 	printf("serial test write finished\n");
 }
 
-void test_write() {
+void test_write(void) {
 	char* msg1 = "Writing to fbout\n";
 	printf(msg1);
 }
 
-void test_dispatcher() {
+void test_dispatcher(void) {
 	clear_fb();
 	test_write();
 	test_write();
 }
+void test_read(void) {
+	char buf[5];
+	u32 bread = read(buf, 5);
+	printhex(bread);
+}

tests.h

@@ -1,5 +1,6 @@
 #include "types.h"
 #include "stlio.h"
 
-void test_write();
+void test_write(void);
-void test_dispatcher();
+void test_dispatcher(void);
+void test_read(void);