Index: uspace/lib/c/generic/time.c
===================================================================
--- uspace/lib/c/generic/time.c	(revision 6119f247f3183c16bdfe692a5c235f69d6c726ff)
+++ uspace/lib/c/generic/time.c	(revision d1fb591fd75aa097af72cfb34c425810675410a3)
@@ -207,4 +207,10 @@
 }
 
+void udelay(useconds_t time)
+{
+	(void) __SYSCALL1(SYS_THREAD_UDELAY, (sysarg_t) time);
+}
+
+
 /** Wait unconditionally for specified number of seconds
  *