Deinitialize USART interface.
int32_t usart_dma_deinit( struct usart_dma_descriptor *const descr )
This function deinitializes the given I/O descriptor. It checks if the given hardware is initialized and if the given hardware is permitted to be deinitialized.
Type: struct usart_dma_descriptor Struct *const
A USART descriptor which is used to communicate via USART
Type: int32_t
De-initialization status.