Macro esp32_hal::dma_descriptors

macro_rules! dma_descriptors {
    ($tx_size:expr, $rx_size:expr) => { ... };
    ($size:expr) => { ... };
}

Convenience macro to create DMA descriptors

Usage

// Create TX and RX descriptors for transactions up to 32000 bytes - passing only one parameter assumes TX and RX are the same size
let (mut tx_descriptors, mut rx_descriptors) = dma_descriptors!(32000, 32000);