Struct UacOut 

pub struct UacOut<'d, A: UsbHostAllocator<'d>> {
    pub output_channel: A::Pipe<Isochronous, Out>,
    pub feedback_channel: Option<A::Pipe<Isochronous, In>>,
    /* private fields */
}

Represents an output audio stream to a USB Audio Class (UAC) device.

This struct manages the output and feedback pipes for isochronous audio streaming, as well as timing and format information required for correct streaming.

Fields

output_channel: A::Pipe<Isochronous, Out>

Output pipe for isochronous audio streaming.

feedback_channel: Option<A::Pipe<Isochronous, In>>

Feedback pipe for isochronous feedback endpoint.

Implementations

impl<'d, A: UsbHostAllocator<'d>> UacOut<'d, A>

pub async fn output_stream( &mut self, is_connected: impl Fn() -> bool, callback: impl FnMut(&mut [u8]), ) -> Result<(), RequestError>

Starts the output audio stream, invoking the provided callback to fill each packet.

The callback is called repeatedly with a mutable buffer for each packet to be sent. Returns an error if the stream cannot be started or if a USB error occurs.

pub async fn update_sampling_freq(&mut self) -> Result<(), RequestError>

Updates the current sampling frequency by reading from the feedback endpoint.

Returns an error if the feedback cannot be read or parsed.