Merge pull request #1381 from hathach/add-sof-isr

Add SOF IRQ Handler

src/portable/renesas/usba/dcd_usba.c

@@ -687,6 +687,14 @@ void dcd_disconnect(uint8_t rhport)
   USB0.SYSCFG.BIT.DPRPU = 0;
 }
 
+void dcd_sof_enable(uint8_t rhport, bool en)
+{
+  (void) rhport;
+  (void) en;
+
+  // TODO implement later
+}
+
 //--------------------------------------------------------------------+
 // Endpoint API
 //--------------------------------------------------------------------+