Struct Version

pub struct Version(pub u8, pub u8, pub u8);

A three-part version consisting of major, minor, and sub minor components.

This can be used to represent versions of the format J.M.N, where J is the major version, M is the minor version, and N is the sub minor version. A version is constructed by providing the fields in the same order to the tuple. For example:

rusb::Version(0, 2, 1);

represents the version 0.2.1.

The intended use case of Version is to extract meaning from the version fields in USB descriptors, such as bcdUSB and bcdDevice in device descriptors.

Tuple Fields

0: u8

1: u8

2: u8

Implementations

impl Version

pub fn from_bcd(raw: u16) -> Self

Extracts a version from a binary coded decimal (BCD) field. BCD fields exist in USB descriptors as 16-bit integers encoding a version as 0xJJMN, where JJ is the major version, M is the minor version, and N is the sub minor version. For example, 2.0 is encoded as 0x0200 and 1.1 is encoded as 0x0110.

pub fn major(self) -> u8

Returns the major version.

pub fn minor(self) -> u8

Returns the minor version.

pub fn sub_minor(self) -> u8

Returns the sub minor version.

Trait Implementations

impl Clone for Version

fn clone(&self) -> Version

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Version

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

Formats the value using the given formatter.

impl Display for Version

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

Formats the value using the given formatter.

impl Hash for Version

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 Version

fn cmp(&self, other: &Version) -> 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 Version

fn eq(&self, other: &Version) -> 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 Version

fn partial_cmp(&self, other: &Version) -> 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 Version

impl Eq for Version

impl StructuralPartialEq for Version