pub fn user_ir_upload(slot: u8, name: &str, data: &[f32]) -> Vec<Vec<u8>>Expand description
The official app’s user IR import: the data (slot in header byte 0, unlike NAM’s byte 1), then
the name. Checked byte for byte against imports into all ten slots
(captures/logs/02-ir-tests.log). The app selects the slot’s cab model
(host::head(Module::Cab, 30 + slot, true)) just before.