Trait kernel::gpio::Chip

pub trait Chip {
    type Data: PointerWrapper + Sync + Send;

    const USE_VTABLE_ATTR: ();
    const HAS_GET_DIRECTION: bool = false;
    const HAS_DIRECTION_INPUT: bool = false;
    const HAS_DIRECTION_OUTPUT: bool = false;
    const HAS_GET: bool = false;
    const HAS_SET: bool = false;

    fn get_direction(
        _data: <Self::Data as PointerWrapper>::Borrowed<'_>, 
        _offset: u32
    ) -> Result<LineDirection> { ... }
    fn direction_input(
        _data: <Self::Data as PointerWrapper>::Borrowed<'_>, 
        _offset: u32
    ) -> Result { ... }
    fn direction_output(
        _data: <Self::Data as PointerWrapper>::Borrowed<'_>, 
        _offset: u32, 
        _value: bool
    ) -> Result { ... }
    fn get(
        _data: <Self::Data as PointerWrapper>::Borrowed<'_>, 
        _offset: u32
    ) -> Result<bool> { ... }
    fn set(
        _data: <Self::Data as PointerWrapper>::Borrowed<'_>, 
        _offset: u32, 
        _value: bool
    ) { ... }
}

A gpio chip.

Required Associated Types

type Data: PointerWrapper + Sync + Send

Context data associated with the gpio chip.

It determines the type of the context data passed to each of the methods of the trait.

Required Associated Constants

const USE_VTABLE_ATTR: ()

A marker to prevent implementors from forgetting to use #[vtable] attribute when implementing this trait.

Provided Associated Constants

const HAS_GET_DIRECTION: bool = false

Indicates if the get_direction method is overridden by the implementor.

const HAS_DIRECTION_INPUT: bool = false

Indicates if the direction_input method is overridden by the implementor.

const HAS_DIRECTION_OUTPUT: bool = false

Indicates if the direction_output method is overridden by the implementor.

const HAS_GET: bool = false

Indicates if the get method is overridden by the implementor.

const HAS_SET: bool = false

Indicates if the set method is overridden by the implementor.

Provided Methods

fn get_direction(
    _data: <Self::Data as PointerWrapper>::Borrowed<'_>,
    _offset: u32
) -> Result<LineDirection>

Returns the direction of the given gpio line.

fn direction_input(
    _data: <Self::Data as PointerWrapper>::Borrowed<'_>,
    _offset: u32
) -> Result

Configures the direction as input of the given gpio line.

fn direction_output(
    _data: <Self::Data as PointerWrapper>::Borrowed<'_>,
    _offset: u32,
    _value: bool
) -> Result

Configures the direction as output of the given gpio line.

The value that will be initially output is also specified.

fn get(
    _data: <Self::Data as PointerWrapper>::Borrowed<'_>,
    _offset: u32
) -> Result<bool>

Returns the current value of the given gpio line.

fn set(
    _data: <Self::Data as PointerWrapper>::Borrowed<'_>,
    _offset: u32,
    _value: bool
)

Sets the value of the given gpio line.

Implementors