Add define guards to allow compiler flags to change product name/serial number

usb_disk/usb_private.h

 
 #define VENDOR_ID		0x16C0
 #define PRODUCT_ID		0x0484
+#ifndef STR_PRODUCT
 #define STR_PRODUCT		L"Teensy Disk/Keyboard"
+#endif
+#ifndef STR_SERIAL_NUMBER
 #define STR_SERIAL_NUMBER	L"123456789ABCDEF0"
+#endif
 
 // Some operating systems, especially Windows, may cache USB device
 // info.  Changes to the device name may not update on the same

usb_hid/usb_private.h

 // computer unless the vendor or product ID numbers change, or the
 // "bcdDevice" revision code is increased.
 
+#ifndef STR_PRODUCT
 #define STR_PRODUCT             L"Teensy Keyboard/Mouse/Joystick"
+#endif
+
 #define ENDPOINT0_SIZE          64
 
 #define DEBUG_INTERFACE		2

usb_midi/usb_private.h

 // computer unless the vendor or product ID numbers change, or the
 // "bcdDevice" revision code is increased.
 
+#ifndef STR_PRODUCT
 #define STR_PRODUCT             L"Teensy MIDI"
+#endif
+
 #define ENDPOINT0_SIZE          64
 
 #define DEBUG_INTERFACE		1

usb_rawhid/usb_private.h

  *
  **************************************************************************/
 
+#ifndef STR_PRODUCT
 #define STR_PRODUCT             L"Teensyduino RawHID Device"
+#endif
+#ifndef STR_RAWHID
 #define STR_RAWHID		L"Teensyduino RawHID"
+#endif
+#ifndef STR_DEBUG
 #define STR_DEBUG		L"Emulated Arduino Serial"
+#endif
 #define ENDPOINT0_SIZE          64
 
 // Some operating systems, especially Windows, may cache USB device

usb_serial/usb_private.h

 
 // You can change these to give your code its own name.  On Windows,
 // these are only used before an INF file (driver install) is loaded.
+#ifndef STR_MANUFACTURER
 #define STR_MANUFACTURER        L"Teensyduino"
+#endif
+#ifndef STR_PRODUCT
 #define STR_PRODUCT             L"USB Serial"
+#endif
 
 // Some operating systems, especially Windows, may cache USB device
 // info.  Changes to the device name may not update on the same
 // Udev rules (in /etc/udev/rules.d) can define persistent device
 // names linked to this serial number, as well as permissions, owner
 // and group settings.
+#ifndef STR_SERIAL_NUMBER
 #define STR_SERIAL_NUMBER       L"12345"
+#endif
 
 // Mac OS-X and Linux automatically load the correct drivers.  On
 // Windows, even though the driver is supplied by Microsoft, an

usb_serial_hid/usb_private.h

 
 // You can change these to give your code its own name.  On Windows,
 // these are only used before an INF file (driver install) is loaded.
+  
+#ifndef STR_MANUFACTURER
 #define STR_MANUFACTURER        L"Teensyduino"
+#endif
+#ifndef STR_PRODUCT
 #define STR_PRODUCT             L"Serial+Keyboard+Mouse+Joystick"
+#endif
+#ifndef STR_SERIAL
 #define STR_SERIAL		L"Serial"
+#endif
 
 // Some operating systems, especially Windows, may cache USB device
 // info.  Changes to the device name may not update on the same
 // Udev rules (in /etc/udev/rules.d) can define persistent device
 // names linked to this serial number, as well as permissions, owner
 // and group settings.
+#ifndef STR_SERIAL_NUMBER
 #define STR_SERIAL_NUMBER       L"12345"
+#endif
 
 // Mac OS-X and Linux automatically load the correct drivers.  On
 // Windows, even though the driver is supplied by Microsoft, an