diff --git a/devices/Makefile b/devices/Makefile
new file mode 100644
index 0000000..973fbe8
--- /dev/null
+++ b/devices/Makefile
@@ -0,0 +1,15 @@
+CC=vc +aos68k
+CC13=vc +kick13
+
+# Note: VBCC comes with linker library replacements, that should be used.
+# If not, printf() stops working in the expected way, because it is part
+# of amiga.lib
+CFLAGS=-c99 -I$(NDK_INC)
+
+all: timer
+
+clean:
+	rm -f timer
+
+timer: timer.c
+	$(CC13) $(CFLAGS) timer.c -o timer -lamiga
diff --git a/devices/timer.c b/devices/timer.c
new file mode 100644
index 0000000..e9fcbcb
--- /dev/null
+++ b/devices/timer.c
@@ -0,0 +1,58 @@
+/*
+ * timer.c - Small example program to see how the timer.device
+ * works
+ */
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <exec/types.h>
+#include <exec/ports.h>
+#include <devices/timer.h>
+#include <clib/exec_protos.h>
+#include <clib/alib_protos.h>
+
+struct Library *TimerBase = NULL;
+
+int main(int argc, char **argv)
+{
+  struct MsgPort *timer_port = NULL;
+  struct timerequest *timer_io = NULL;
+  struct timeval time1;
+  ULONG mics, secs;
+  BYTE error = 0;
+
+  timer_port = CreatePort(NULL, 0);
+  if (!timer_port) {
+    printf("could not create message port\n");
+    return 0;
+  }
+  timer_io = (struct timerequest *) CreateExtIO(timer_port,
+                                                sizeof(struct timerequest));
+  if (!timer_io) {
+    printf("could not create create timerequest object\n");
+    DeletePort(timer_port);
+    return 0;
+  }
+  error = OpenDevice(TIMERNAME, UNIT_MICROHZ, (struct IORequest *) timer_io, 0);
+  if (error) {
+    printf("could not open timer.device\n");
+  } else {
+    TimerBase = (struct Library *) timer_io->tr_node.io_Device;
+    timer_io->tr_node.io_Command = TR_GETSYSTIME;
+    DoIO((struct IORequest *) timer_io);
+    mics = timer_io->tr_time.tv_micro;
+    secs = timer_io->tr_time.tv_secs;
+    
+    printf("micros: %lu secs: %lu\n", mics, secs);
+  }
+  /* cleanup */
+  if (!CheckIO((struct IORequest *) timer_io)) {
+    AbortIO((struct IORequest *) timer_io);
+  }
+  WaitIO((struct IORequest *) timer_io);
+  TimerBase = NULL;
+  CloseDevice((struct IORequest *) timer_io);
+  if (timer_io) DeleteExtIO((struct IORequest *) timer_io);
+  if (timer_port) DeletePort(timer_port);
+  return 0;
+}
diff --git a/mui/openwin/openwin.c b/mui/openwin/openwin.c
index d7af816..976b3ab 100644
--- a/mui/openwin/openwin.c
+++ b/mui/openwin/openwin.c
@@ -44,8 +44,8 @@ BOOL Init()
 
 void Cleanup()
 {
-  if (IntuitionBase) CloseLibrary((struct Library *)IntuitionBase);
-  if (MUIMasterBase) CloseLibrary((struct Library *) MUIMasterBase);
+  if (IntuitionBase) CloseLibrary(IntuitionBase);
+  if (MUIMasterBase) CloseLibrary(MUIMasterBase);
 }
 
 int main(int argc, char **argv)