Trait IoLoc 

pub trait IoLoc<Base: ?Sized, T> {
    // Required method
    fn offset(self) -> usize;
}

Describes a given I/O location: its offset, width, and type to convert the raw value from and into.

This trait is the key abstraction allowing Io::read, Io::write, and Io::update (and their fallible try_read, try_write and try_update counterparts) to work uniformly with both raw usize offsets (for primitive types like u32) and typed ones (like those generated by the register! macro).

An IoLoc<Base, T> carries the following pieces of information:

• The valid Base to operate on. For most registers, this should be Region.
• The offset to access (returned by IoLoc::offset),
• The type T in which the data is returned or provided.

T is not necessarily the type for underlying I/O operation. Methods that take IoLoc have T: AsRepr bound and the <T as AsRepr>::Repr type would be used to perform I/O and converted to T instead.

Required Methods

fn offset(self) -> usize

Consumes self and returns the offset of this location.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<Base: ?Sized, T> IoLoc<Base, T> for ()

where T: FixedIoLoc<Base>,

Allows () to be used as the location parameter of Io::write when passing a FixedIoLoc value.

fn offset(self) -> usize

impl<const SIZE: usize> IoLoc<Region<SIZE>, u8> for usize

fn offset(self) -> usize

impl<const SIZE: usize> IoLoc<Region<SIZE>, u16> for usize

fn offset(self) -> usize

impl<const SIZE: usize> IoLoc<Region<SIZE>, u32> for usize

fn offset(self) -> usize

impl<const SIZE: usize> IoLoc<Region<SIZE>, u64> for usize

fn offset(self) -> usize

Implementors

impl<Base: ?Sized, T> IoLoc<Base, T> for RegisterArrayLoc<T>

where T: RegisterArray<Base = Base>,