Preview of the proposed up-rust native-frame-model branch (up-rust b6b99c6d, up-spec f0e9b17) — not released documentation. branch · write-up
up_rust::wire

Constant INVALID_ID_FIXTURE_COMPACT_ID

Source 
pub const INVALID_ID_FIXTURE_COMPACT_ID: u16 = 0xFFFF;
Expand description

Compact ID reserved for invalid-ID fixtures.