diff --git a/os/hal/include/serial_usb.h b/os/hal/include/serial_usb.h index 9223c82a3..03c075f62 100644 --- a/os/hal/include/serial_usb.h +++ b/os/hal/include/serial_usb.h @@ -53,8 +53,9 @@ /* Derived constants and error checks. */ /*===========================================================================*/ -#if !HAL_USE_USB && !CH_USE_EVENTS -#error "Serial over USB Driver requires HAL_USE_USB and CH_USE_EVENTS" +#if !HAL_USE_USB && !CH_USE_QUEUES && !CH_USE_EVENTS +#error "Serial over USB Driver requires HAL_USE_USB, CH_USE_QUEUES, " + "CH_USE_EVENTS" #endif /*===========================================================================*/