Struct InterfaceAltSetting

pub struct InterfaceAltSetting<'a>(/* private fields */);

Information about a USB interface alternate setting, with access to associated endpoints and other descriptors.

An interface descriptor represents a single alternate setting of an interface. Multiple interface descriptors with the same interface_number but different alternate_setting values represent different alternate settings.

Implementations

impl<'a> InterfaceAltSetting<'a>

pub fn descriptors(&self) -> Descriptors<'_>

Get the interface descriptor followed by all trailing endpoint and other descriptors up to the next interface descriptor.

pub fn endpoints(&self) -> impl Iterator<Item = Endpoint<'_>>

Get the endpoints of this interface.

impl<'a> InterfaceAltSetting<'a>

pub fn interface_number(&self) -> u8

bInterfaceNumber descriptor field: Identifier for the interface.

Pass this to Device::claim_interface to work with the interface.

pub fn alternate_setting(&self) -> u8

bAlternateSetting descriptor field: Identifier for this alternate setting.

Pass this to Interface::set_alt_setting to use this alternate setting.

pub fn num_endpoints(&self) -> u8

bNumEndpoints descriptor field: Number of endpoints in this alternate setting.

pub fn class(&self) -> u8

bInterfaceClass descriptor field: Standard interface class.

pub fn subclass(&self) -> u8

bInterfaceSubClass descriptor field: Standard interface subclass.

pub fn protocol(&self) -> u8

bInterfaceProtocol descriptor field: Standard interface protocol.

impl<'a> InterfaceAltSetting<'a>

pub fn string_index(&self) -> Option<u8>

Index of the string descriptor describing this interface or alternate setting.

Trait Implementations

impl<'a> Clone for InterfaceAltSetting<'a>

fn clone(&self) -> InterfaceAltSetting<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for InterfaceAltSetting<'a>

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

Formats the value using the given formatter.