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-rw-r--r--libmaple/include/libmaple/usart.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/libmaple/include/libmaple/usart.h b/libmaple/include/libmaple/usart.h
index ad7eb51..293d59e 100644
--- a/libmaple/include/libmaple/usart.h
+++ b/libmaple/include/libmaple/usart.h
@@ -395,6 +395,7 @@ typedef struct usart_dev {
void usart_init(usart_dev *dev);
+/* FIXME document this function */
struct gpio_dev; /* forward declaration */
void usart_async_gpio_cfg(usart_dev *udev,
struct gpio_dev *rx_dev, uint8 rx,