Struct Opcode

pub struct Opcode { /* private fields */ }

The opcode used by an Ioctl.

Implementations

impl Opcode

pub const fn old(raw: RawOpcode) -> Self

Create a new old Opcode from a raw opcode.

Rather than being a composition of several attributes, old opcodes are just numbers. In general most drivers follow stricter conventions, but older drivers may still use this strategy.

pub const fn from_components( direction: Direction, group: u8, number: u8, data_size: usize, ) -> Self

Create a new opcode from a direction, group, number, and size.

This corresponds to the C macro _IOC(direction, group, number, size)

pub const fn none<T>(group: u8, number: u8) -> Self

Create a new non-mutating opcode from a group, a number, and the type of data.

This corresponds to the C macro _IO(group, number) when T is zero sized.

pub const fn read<T>(group: u8, number: u8) -> Self

Create a new reading opcode from a group, a number and the type of data.

This corresponds to the C macro _IOR(group, number, T).

pub const fn write<T>(group: u8, number: u8) -> Self

Create a new writing opcode from a group, a number and the type of data.

This corresponds to the C macro _IOW(group, number, T).

pub const fn read_write<T>(group: u8, number: u8) -> Self

Create a new reading and writing opcode from a group, a number and the type of data.

This corresponds to the C macro _IOWR(group, number, T).

pub fn raw(self) -> RawOpcode

Get the raw opcode.

Trait Implementations

impl Clone for Opcode

fn clone(&self) -> Opcode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Opcode

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

Formats the value using the given formatter.

impl Hash for Opcode

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Opcode

fn cmp(&self, other: &Opcode) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Opcode

fn eq(&self, other: &Opcode) -> 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 PartialOrd for Opcode

fn partial_cmp(&self, other: &Opcode) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Opcode

impl Eq for Opcode

impl StructuralPartialEq for Opcode

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 4 bytes