Trait IoLoc 

pub trait IoLoc<T> {
    type IoType: Into<T> + From<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<T> carries three pieces of information:

• The offset to access (returned by IoLoc::offset),
• The width of the access (determined by IoLoc::IoType),
• The type T in which the raw data is returned or provided.

T and IoLoc::IoType may differ: for instance, a typed register has T = the register type with its bitfields, and IoType = its backing primitive (e.g. u32).

Required Associated Types

type IoType: Into<T> + From<T>

Size (u8, u16, etc) of the I/O performed on the returned offset.

Required Methods

fn offset(self) -> usize

Consumes self and returns the offset of this location.

Implementations on Foreign Types

impl IoLoc<u8> for usize

type IoType = u8

fn offset(self) -> usize

impl IoLoc<u16> for usize

type IoType = u16

fn offset(self) -> usize

impl IoLoc<u32> for usize

type IoType = u32

fn offset(self) -> usize

impl IoLoc<u64> for usize

type IoType = u64

fn offset(self) -> usize

impl<T> IoLoc<T> for ()

where T: FixedRegister,

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

type IoType = <T as Register>::Storage

fn offset(self) -> usize

Implementors

impl<T> IoLoc<T> for FixedRegisterLoc<T>

where T: FixedRegister,

type IoType = <T as Register>::Storage

impl<T> IoLoc<T> for RegisterArrayLoc<T>

where T: RegisterArray,

type IoType = <T as Register>::Storage

impl<T> IoLoc<T> for T

where T: FixedRegister,

A FixedRegister carries its location in its type. Thus FixedRegister values can be used as an IoLoc.

type IoType = <T as Register>::Storage

impl<T, B> IoLoc<T> for RelativeRegisterArrayLoc<T, B>

where T: RelativeRegisterArray, B: RegisterBase<T::BaseFamily> + ?Sized,

type IoType = <T as Register>::Storage

impl<T, B> IoLoc<T> for RelativeRegisterLoc<T, B>

where T: RelativeRegister, B: RegisterBase<T::BaseFamily> + ?Sized,

type IoType = <T as Register>::Storage