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-rw-r--r--os/hal/platforms/STM32/uart_lld.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/os/hal/platforms/STM32/uart_lld.h b/os/hal/platforms/STM32/uart_lld.h
index d030c2970..7cac040ce 100644
--- a/os/hal/platforms/STM32/uart_lld.h
+++ b/os/hal/platforms/STM32/uart_lld.h
@@ -233,6 +233,9 @@ struct UARTDriver {
uartrxstate_t ud_rxstate;
/** @brief UART driver status flags.*/
uartflags_t ud_flags;
+#if defined(UART_DRIVER_EXT_FIELDS)
+ UART_DRIVER_EXT_FIELDS
+#endif
/* End of the mandatory fields.*/
/** @brief Pointer to the USART registers block.*/
USART_TypeDef *ud_usart;