Enum Operation

#[non_exhaustive]
pub enum Operation<'a> {
    Read(&'a mut [u8]),
    ReadWithWidth(&'a mut [u8], LineWidth),
    Write(&'a [u8]),
    WriteWithWidth(&'a [u8], LineWidth),
    Transfer(&'a mut [u8], &'a [u8]),
    TransferInPlace(&'a mut [u8]),
    DelayNs(u32),
}

SPI transaction operation.

This allows composition of SPI operations into a single bus transaction.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Read(&'a mut [u8])

Read data into the provided buffer.

ReadWithWidth(&'a mut [u8], LineWidth)

Read data into the provided buffer with the provided line width in half-duplex mode.

Write(&'a [u8])

Write data from the provided buffer, discarding read data.

WriteWithWidth(&'a [u8], LineWidth)

Write data from the provided buffer, using the provided line width in half-duplex mode, discarding read data.

Transfer(&'a mut [u8], &'a [u8])

Read data into the first buffer, while writing data from the second buffer.

TransferInPlace(&'a mut [u8])

Write data out while reading data into the provided buffer.

DelayNs(u32)

Delay for at least the specified number of nanoseconds.

Trait Implementations

impl<'a> Debug for Operation<'a>

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

Formats the value using the given formatter.

impl<'a> PartialEq for Operation<'a>

fn eq(&self, other: &Operation<'a>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> Eq for Operation<'a>

impl<'a> StructuralPartialEq for Operation<'a>