Typedef

This section introduces the typedef that UART M-HAL used. More...

Overview

This section introduces the typedef that UART M-HAL used.

Typedefs
typedef int(*	uart_dma_done_callback )(void *user_data)
	This defines the callback function prototype. More...

Typedef Documentation

typedef int(* uart_dma_done_callback)(void *user_data)

This defines the callback function prototype.

It's used for DMA mode transaction.
Users should register a callback function when using DMA mode.
In DMA mode, once UART and DMA hardware have completed the transaction, a DMA interrupt is triggered and a related user callback is called in the DMA interrupt service routine.
This typedef is used to describe the callback function that the user wants to call.

Parameters

[in]

user_data

An OS-HAL defined parameter is private by #mtk_mhal_uart_dma_done_callback_register().

See Also

#mtk_mhal_uart_dma_done_callback_register()

Returns

Return "0" if callback registers success;
otherwise, return "-1".