diff options
| -rw-r--r-- | cores/arduino/USBAPI.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/cores/arduino/USBAPI.h b/cores/arduino/USBAPI.h index eb2e593..1a4183b 100644 --- a/cores/arduino/USBAPI.h +++ b/cores/arduino/USBAPI.h @@ -25,6 +25,8 @@ extern USBDevice_ USBDevice; //================================================================================ // Serial over CDC (Serial1 is the physical port) +struct ring_buffer; + class Serial_ : public Stream { private: @@ -193,4 +195,4 @@ void USB_Flush(uint8_t ep); #endif -#endif /* if defined(USBCON) */
\ No newline at end of file +#endif /* if defined(USBCON) */ |