medius 3.4.1

Host control library for the medius transparent mouse passthrough box
Documentation 
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//! How far an injected delta is spread across the host's command interval (§4.14).

/// The configured spread percent and the interval the box is releasing across (§4.14).
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Default)]
pub struct SpreadStatus {
    /// Percent of the learnt command interval. 0 is off; above 100 overlaps.
    pub percent: u16,
    /// The interval being released across, in microseconds. 0 until the box has learned the host's
    /// command period, and 0 whenever `percent` is 0.
    pub span_us: u32,
}

impl SpreadStatus {
    /// Decode a `RESP(OPTIONS, SPREAD)` payload (§4.14).
    pub(crate) fn from_payload(p: &[u8]) -> Option<SpreadStatus> {
        if p.len() < 8 {
            return None;
        }
        Some(SpreadStatus {
            percent: u16::from_le_bytes([p[2], p[3]]),
            span_us: u32::from_le_bytes([p[4], p[5], p[6], p[7]]),
        })
    }
}