enum Command {
    Task1,
    Task2,
}
struct Peripheral;

async fn dispatch(command: Command) {
    let mut peri: Peripheral;

    loop {
        peri = match command {
            Command::Task1 => task1(peri).await,
            Command::Task2 => task1(peri).await,
        }
    }
}
async fn task1(peri: Peripheral) -> Peripheral {}
async fn task2(peri: Peripheral) -> Peripheral {}