Function esp_idf_svc::sys::i2s_zero_dma_buffer

pub unsafe extern "C" fn i2s_zero_dma_buffer(i2s_num: u32) -> i32

@brief Zero the contents of the TX DMA buffer.

Pushes zero-byte samples into the TX DMA buffer, until it is full.

@param i2s_num I2S port number

@return - ESP_OK Success - ESP_ERR_INVALID_ARG Parameter error