audio_dma_get_buffer

Get the number of bytes has been processed for the queued buffer.

int32_t audio_dma_get_buffer_size(
    struct audio_dma_descriptor *const desc,
    enum audio_dir dir
)

This function returns the number of bytes has been processed in the buffer queue of the driver instance. The application can use this function to know how many bytes has been processed.

Parameters

desc

Type: struct audio_dma_descriptor Struct *const

Pointer to audio driver descriptor

dir

Type: enum audio_dir Enum

Identifies flush the read or write queue

Returns

Type: int32_t

The number of bytes that have been processed for this buffer