Macro dma_tx_buffer 

macro_rules! dma_tx_buffer {
    ($tx_size:expr) => { ... };
}

Convenience macro to create a DmaTxBuf from buffer size. The buffer and descriptors are statically allocated and used to create the DmaTxBuf.

Usage

use esp_hal::dma_tx_buffer;

let tx_buf = dma_tx_buffer!(32000);