Struct Values

pub struct Values<C: AsRef<QueryExtCtrl>> { /* private fields */ }

Control values

Implementations

impl<C: AsRef<QueryExtCtrl>> Values<C>

pub fn len(&self) -> usize

Number of values

pub fn is_empty(&self) -> bool

Check for empty

pub fn controls(&self) -> &[C]

Values controls

pub fn try_ref<T: RefValue<ExtControl>>(&self, index: usize) -> Option<&T>

Get reference to value by index

pub fn try_mut<T: MutValue<ExtControl>>( &mut self, index: usize, ) -> Option<&mut T>

Get mutable reference to value by index

Trait Implementations

impl<C: AsRef<QueryExtCtrl>> Drop for Values<C>

fn drop(&mut self)

Executes the destructor for this type.

impl<C: AsRef<QueryExtCtrl>> FromIterator<C> for Values<C>

fn from_iter<T: IntoIterator<Item = C>>(iter: T) -> Self

Creates a value from an iterator.

impl<C: AsRef<QueryExtCtrl>> GetValue for Values<C>

fn get(&mut self, fd: RawFd) -> Result<()>

Get values from device

impl<C: AsRef<QueryExtCtrl>> SetValue for Values<C>

fn set(&self, fd: RawFd) -> Result<()>

Set values to device