struct Abs {
    id: u16,
    min: u32,
    max: u32,
    fuzz: u32,
    flat: u32,
    res: u32,
}

struct Rel {
    id: u16,
}

struct Key {
    id: u16,
}

const ABS_CNT = 64;
const REL_CNT = 16;
const KEY_CNT = 768;

struct Tag {
    name: char[],
}

struct TagList {
    tags: Tag[],
}

version(1);
messages Device {
    Info {
        slot: u8,
        index: u8,

        abs: Abs[^ABS_CNT],
        rel: Rel[^REL_CNT],
        key: Key[^KEY_CNT],
    }
    Report {
        slot: u8,
        index: u8,

        abs: u32[^ABS_CNT],
        rel: u32[^REL_CNT],
        key: u8[^KEY_CNT],
    }
    ControllerState {
        index: u16,
        led: u8[3],
        small_rumble: u8,
        big_rumble: u8,
        flash_on: u8,
        flash_off: u8,
    }
    #[versioned]
    Request {
        requests: TagList[],
    }
    Destroy {
        index: u16,
    }
}