Struct Config 

pub struct Config<'d> {
    pub sample_rates_hz: &'d [u32],
    pub sample_width: SampleWidth,
    pub channels: &'d [Channel],
    pub feature_unit: Vec<FeatureUnitControls, MAX_AUDIO_CHANNEL_COUNT, u8>,
    pub max_packet_size: u16,
    pub feedback_refresh_period: FeedbackRefresh,
}

Speaker stream settings and optional host controls.

Fields

sample_rates_hz: &'d [u32]

Supported sample rates in Hz: one to ten discrete values. The first is reported before the host selects a rate.

sample_width: SampleWidth

The audio sample resolution.

channels: &'d [Channel]

Audio channels in stream order (one to twelve). Entries must be unique and follow wChannelConfig bit order, as listed in Channel.

feature_unit: Vec<FeatureUnitControls, MAX_AUDIO_CHANNEL_COUNT, u8>

Controls the USB host can change on each channel.

Use heapless::Vec::new() to omit the Feature Unit. Otherwise, provide channels.len() + 1 entries: the master first, then each audio channel in Self::channels order. Use FeatureUnitControls::empty for no controls on a channel.

max_packet_size: u16

Maximum bytes per USB packet. Allow room for sample rate variation, for example twice the bytes played per (micro)frame.

feedback_refresh_period: FeedbackRefresh

How often the device sends sample rate feedback to the host.

Implementations

impl<'d> Config<'d>

pub const fn new( sample_rates_hz: &'d [u32], sample_width: SampleWidth, channels: &'d [Channel], max_packet_size: u16, feedback_refresh_period: FeedbackRefresh, ) -> Self

Creates a speaker configuration without a Feature Unit.

Trait Implementations

impl<'d> Clone for Config<'d>

fn clone(&self) -> Config<'d>

Returns a duplicate of the value.

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

Performs copy-assignment from source.