Struct esp_idf_svc::sys::spi_slave_transaction_t

#[repr(C)]
pub struct spi_slave_transaction_t {
    pub length: usize,
    pub trans_len: usize,
    pub tx_buffer: *const c_void,
    pub rx_buffer: *mut c_void,
    pub user: *mut c_void,
}

This structure describes one SPI transaction

Fields

length: usize

< Total data length, in bits

trans_len: usize

< Transaction data length, in bits

tx_buffer: *const c_void

< Pointer to transmit buffer, or NULL for no MOSI phase

rx_buffer: *mut c_void

< Pointer to receive buffer, or NULL for no MISO phase. When the DMA is anabled, must start at WORD boundary (rx_buffer%4==0), and has length of a multiple of 4 bytes.

user: *mut c_void

< User-defined variable. Can be used to store eg transaction ID.

Trait Implementations

impl Clone for spi_slave_transaction_t

fn clone(&self) -> spi_slave_transaction_t

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for spi_slave_transaction_t

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for spi_slave_transaction_t

fn default() -> spi_slave_transaction_t

Returns the “default value” for a type.

impl Copy for spi_slave_transaction_t