diff --git a/os/hal/include/serial_usb.h b/os/hal/include/serial_usb.h index 25ce4859b..1d3d23f74 100644 --- a/os/hal/include/serial_usb.h +++ b/os/hal/include/serial_usb.h @@ -59,7 +59,7 @@ /* Derived constants and error checks. */ /*===========================================================================*/ -#if !HAL_USE_USB && !CH_USE_QUEUES && !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