Struct libusb::Version [] [src]

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:

libusb::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.

Methods

impl Version
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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 endoded as 0x0200 and 1.1 is encoded as 0x0110.

fn major(&self) -> u8

Returns the major version.

fn minor(&self) -> u8

Returns the minor version.

fn sub_minor(&self) -> u8

Returns the sub minor version.

Trait Implementations

impl Hash for Version
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fn hash<__H: Hasher>(&self, __arg_0: &mut __H)

Feeds this value into the state given, updating the hasher as necessary.

fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher
1.3.0

Feeds a slice of this type into the state provided.

impl Copy for Version
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impl Clone for Version
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fn clone(&self) -> Version

Returns a copy of the value. Read more

fn clone_from(&mut self, source: &Self)
1.0.0

Performs copy-assignment from source. Read more

impl Eq for Version
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impl PartialEq for Version
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fn eq(&self, __arg_0: &Version) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

fn ne(&self, __arg_0: &Version) -> bool

This method tests for !=.

impl Debug for Version
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fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.