Struct alsa::mixer::Mixer

pub struct Mixer(_);

wraps snd_mixer_t

Methods

impl Mixer

pub fn new(name: &str, nonblock: bool) -> Result<Mixer>

Opens a mixer and attaches it to a card identified by its name (like hw:0) and loads the mixer after registering a Selem.

pub fn find_selem(&self, id: &SelemId) -> Option<Selem>

Creates a Selem by looking for a specific selem by name given a mixer (of a card)

pub fn open(nonblock: bool) -> Result<Mixer>

pub fn attach(&mut self, name: &CStr) -> Result<()>

pub fn load(&mut self) -> Result<()>

Important traits for Iter<'a>

impl<'a> Iterator for Iter<'a> type Item = Elem<'a>;

pub fn iter(&self) -> Iter

pub fn wait(&self, timeout_ms: Option<u32>) -> Result<bool>

Trait Implementations

impl Debug for Mixer

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

Formats the value using the given formatter.

impl Send for Mixer

impl Drop for Mixer

Closes mixer and frees used resources

fn drop(&mut self)

Executes the destructor for this type.

impl PollDescriptors for Mixer

fn count(&self) -> usize

fn fill(&self, p: &mut [pollfd]) -> Result<usize>

fn revents(&self, p: &[pollfd]) -> Result<PollFlags>

fn get(&self) -> Result<Vec<pollfd>>

Wrapper around count and fill - returns an array of pollfds