async fn fill_all_leds(
driver: &mut Driver<SpiTransport<Spi<'static, Async, Master>, Output<'static>, Output<'static>, 2>, 2>,
color: (u8, u8, u8),
brightness: u8,
) -> Result<(), SpiTransportError<<Spi<'static, Async, Master> as ErrorType>::Error>>Expand description
Paint every LED with color at brightness and flush to hardware.
Combines the three-step correct → stage_all_leds → flush sequence that appears in every solid-colour calibration frame, so each call site is a single expression.