Enlarge USB serialNumber buffer

facchinm · facchinm · commit 86ae8606771c · 2016-12-15T18:34:05.000+01:00
diff --git a/cores/arduino/USB/USBDesc.h b/cores/arduino/USB/USBDesc.h
@@ -41,7 +41,7 @@
 #define CDC_TX CDC_ENDPOINT_IN
 #endif
 
-#define ISERIAL_MAX_LEN        20
+#define ISERIAL_MAX_LEN        33
 
 // Defined string description
 #define IMANUFACTURER	1
