diff --git a/digistump-avr/libraries/DigisparkKeyboard/DigiKeyboard.h b/digistump-avr/libraries/DigisparkKeyboard/DigiKeyboard.h
index f5678fb..03182f0 100644
--- a/digistump-avr/libraries/DigisparkKeyboard/DigiKeyboard.h
+++ b/digistump-avr/libraries/DigisparkKeyboard/DigiKeyboard.h
@@ -38,24 +38,24 @@ static uchar    idleRate;           // in 4 ms units
  * for the second INPUT item.
  */
 const PROGMEM char usbHidReportDescriptor[USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH] = { /* USB report descriptor */
-  0x05, 0x01,                    // USAGE_PAGE (Generic Desktop)
-  0x09, 0x06,                    // USAGE (Keyboard)
-  0xa1, 0x01,                    // COLLECTION (Application)
-  0x05, 0x07,                    //   USAGE_PAGE (Keyboard)
-  0x19, 0xe0,                    //   USAGE_MINIMUM (Keyboard LeftControl)
-  0x29, 0xe7,                    //   USAGE_MAXIMUM (Keyboard Right GUI)
-  0x15, 0x00,                    //   LOGICAL_MINIMUM (0)
-  0x25, 0x01,                    //   LOGICAL_MAXIMUM (1)
-  0x75, 0x01,                    //   REPORT_SIZE (1)
-  0x95, 0x08,                    //   REPORT_COUNT (8)
-  0x81, 0x02,                    //   INPUT (Data,Var,Abs)
-  0x95, 0x01,           //   REPORT_COUNT (simultaneous keystrokes)
-  0x75, 0x08,                    //   REPORT_SIZE (8)
-  0x25, 0x65,                    //   LOGICAL_MAXIMUM (101)
-  0x19, 0x00,                    //   USAGE_MINIMUM (Reserved (no event indicated))
-  0x29, 0x65,                    //   USAGE_MAXIMUM (Keyboard Application)
-  0x81, 0x00,                    //   INPUT (Data,Ary,Abs)
-  0xc0                           // END_COLLECTION
+  (char) 0x05, (char) 0x01,                    // USAGE_PAGE (Generic Desktop)
+  (char) 0x09, (char) 0x06,                    // USAGE (Keyboard)
+  (char) 0xa1, (char) 0x01,                    // COLLECTION (Application)
+  (char) 0x05, (char) 0x07,                    //   USAGE_PAGE (Keyboard)
+  (char) 0x19, (char) 0xe0,                    //   USAGE_MINIMUM (Keyboard LeftControl)
+  (char) 0x29, (char) 0xe7,                    //   USAGE_MAXIMUM (Keyboard Right GUI)
+  (char) 0x15, (char) 0x00,                    //   LOGICAL_MINIMUM (0)
+  (char) 0x25, (char) 0x01,                    //   LOGICAL_MAXIMUM (1)
+  (char) 0x75, (char) 0x01,                    //   REPORT_SIZE (1)
+  (char) 0x95, (char) 0x08,                    //   REPORT_COUNT (8)
+  (char) 0x81, (char) 0x02,                    //   INPUT (Data,Var,Abs)
+  (char) 0x95, (char) 0x01,           //   REPORT_COUNT (simultaneous keystrokes)
+  (char) 0x75, (char) 0x08,                    //   REPORT_SIZE (8)
+  (char) 0x25, (char) 0x65,                    //   LOGICAL_MAXIMUM (101)
+  (char) 0x19, (char) 0x00,                    //   USAGE_MINIMUM (Reserved (no event indicated))
+  (char) 0x29, (char) 0x65,                    //   USAGE_MAXIMUM (Keyboard Application)
+  (char) 0x81, (char) 0x00,                    //   INPUT (Data,Ary,Abs)
+  (char) 0xc0                           // END_COLLECTION
 };
 
 
diff --git a/digistump-avr/libraries/DigisparkMouse/DigiMouse.h b/digistump-avr/libraries/DigisparkMouse/DigiMouse.h
index 497325c..fbce988 100644
--- a/digistump-avr/libraries/DigisparkMouse/DigiMouse.h
+++ b/digistump-avr/libraries/DigisparkMouse/DigiMouse.h
@@ -60,35 +60,35 @@ static unsigned long last_report_time = 0;
 char usb_hasCommed = 0;
 
 const PROGMEM unsigned char mouse_usbHidReportDescriptor[] = { /* USB report descriptor */
-		0x05, 0x01,										 // USAGE_PAGE (Generic Desktop)
-		0x09, 0x02,										 // USAGE (Mouse)
-		0xa1, 0x01,										 // COLLECTION (Application)
-		0x09, 0x01,										 //		USAGE_PAGE (Pointer)
-		0xa1, 0x00,										 //		COLLECTION (Physical)
-		0x05, 0x09,										 //		USAGE_PAGE (Button)
-		0x19, 0x01,										 //		USAGE_MINIMUM (Button 1)
-		0x29, 0x03,										 //		USAGE_MAXIMUM (Button 3)
-		0x15, 0x00,										 //		LOGICAL_MINIMUM (0)
-		0x25, 0x01,										 //		LOGICAL_MAXIMUM (1)
-		0x95, 0x03,										 //		REPORT_COUNT (3)
-		0x75, 0x01,										 //		REPORT_SIZE (1)
-		0x81, 0x02,										 //		INPUT (Data,Var,Abs)
-		0x95, 0x01,										 //		REPORT_COUNT (1)
-		0x75, 0x05,										 //		REPORT_SIZE (5)
-		0x81, 0x01,										 //		Input(Cnst)
-		0x05, 0x01,										 //		USAGE_PAGE(Generic Desktop)
-		0x09, 0x30,										 //		USAGE(X)
-		0x09, 0x31,										 //		USAGE(Y)
-		0x15, 0x81,										 //		LOGICAL_MINIMUM (-127)
-		0x25, 0x7f,										 //		LOGICAL_MAXIMUM (127)
-		0x75, 0x08,										 //		REPORT_SIZE (8)
-		0x95, 0x02,										 //		REPORT_COUNT (2)
-		0x81, 0x06,										 //		INPUT (Data,Var,Rel)
-		0x09, 0x38,											//	 Usage (Wheel)
-		0x95, 0x01,											//	 Report Count (1),
-		0x81, 0x06,											//	 Input (Data, Variable, Relative)
-		0xc0,														// END_COLLECTION
-		0xc0													 // END_COLLECTION
+		(unsigned char) 0x05, (unsigned char) 0x01,										 // USAGE_PAGE (Generic Desktop)
+		(unsigned char) 0x09, (unsigned char) 0x02,										 // USAGE (Mouse)
+		(unsigned char) 0xa1, (unsigned char) 0x01,										 // COLLECTION (Application)
+		(unsigned char) 0x09, (unsigned char) 0x01,										 //		USAGE_PAGE (Pointer)
+		(unsigned char) 0xa1, (unsigned char) 0x00,										 //		COLLECTION (Physical)
+		(unsigned char) 0x05, (unsigned char) 0x09,										 //		USAGE_PAGE (Button)
+		(unsigned char) 0x19, (unsigned char) 0x01,										 //		USAGE_MINIMUM (Button 1)
+		(unsigned char) 0x29, (unsigned char) 0x03,										 //		USAGE_MAXIMUM (Button 3)
+		(unsigned char) 0x15, (unsigned char) 0x00,										 //		LOGICAL_MINIMUM (0)
+		(unsigned char) 0x25, (unsigned char) 0x01,										 //		LOGICAL_MAXIMUM (1)
+		(unsigned char) 0x95, (unsigned char) 0x03,										 //		REPORT_COUNT (3)
+		(unsigned char) 0x75, (unsigned char) 0x01,										 //		REPORT_SIZE (1)
+		(unsigned char) 0x81, (unsigned char) 0x02,										 //		INPUT (Data,Var,Abs)
+		(unsigned char) 0x95, (unsigned char) 0x01,										 //		REPORT_COUNT (1)
+		(unsigned char) 0x75, (unsigned char) 0x05,										 //		REPORT_SIZE (5)
+		(unsigned char) 0x81, (unsigned char) 0x01,										 //		Input(Cnst)
+		(unsigned char) 0x05, (unsigned char) 0x01,										 //		USAGE_PAGE(Generic Desktop)
+		(unsigned char) 0x09, (unsigned char) 0x30,										 //		USAGE(X)
+		(unsigned char) 0x09, (unsigned char) 0x31,										 //		USAGE(Y)
+		(unsigned char) 0x15, (unsigned char) 0x81,										 //		LOGICAL_MINIMUM (-127)
+		(unsigned char) 0x25, (unsigned char) 0x7f,										 //		LOGICAL_MAXIMUM (127)
+		(unsigned char) 0x75, (unsigned char) 0x08,										 //		REPORT_SIZE (8)
+		(unsigned char) 0x95, (unsigned char) 0x02,										 //		REPORT_COUNT (2)
+		(unsigned char) 0x81, (unsigned char) 0x06,										 //		INPUT (Data,Var,Rel)
+		(unsigned char) 0x09, (unsigned char) 0x38,											//	 Usage (Wheel)
+		(unsigned char) 0x95, (unsigned char) 0x01,											//	 Report Count (1),
+		(unsigned char) 0x81, (unsigned char) 0x06,											//	 Input (Data, Variable, Relative)
+		(unsigned char) 0xc0,														// END_COLLECTION
+		(unsigned char) 0xc0													 // END_COLLECTION
 };