chore: better docs, appease clippy

src/bin/pin_scanner.rs

@@ -71,11 +71,9 @@ async fn scanner_task(mut pin_driver: pins::TransparentPins) {
             let mask = input ^ (((1 << pin_driver.n_total_pins) - 1) ^ (1 << gnd_pin));
             for input_pin in 0..pin_driver.n_total_pins {
                 let input_pin = input_pin as u8;
-                if ((1 << input_pin) & mask) != 0 {
-                    if n_connections < MAX_CONNECTIONS {
-                        connections[n_connections] = Some(Connection { gnd_pin, input_pin });
-                        n_connections += 1;
-                    }
+                if ((1 << input_pin) & mask) != 0 && n_connections < MAX_CONNECTIONS {
+                    connections[n_connections] = Some(Connection { gnd_pin, input_pin });
+                    n_connections += 1;
                 }
             }
             // this should avoid overexerting the components
@@ -84,8 +82,8 @@ async fn scanner_task(mut pin_driver: pins::TransparentPins) {
         }
 
         log::info!("SCAN RESULTS");
-        for i in 0..n_connections {
-            match connections[i] {
+        for v in connections.iter().take(n_connections) {
+            match v {
                 None => {}
                 Some(con) => {
                     log::warn!("GND {:0>2} -> INPUT {:0>2}", con.gnd_pin, con.input_pin);

src/lib.rs

@@ -1,6 +1,7 @@
 #![no_std]
 #![no_main]
 #![deny(rust_2018_idioms)]
+#![deny(rustdoc::broken_intra_doc_links)]
 
 use embassy_time::Timer;
 use {defmt_rtt as _, panic_probe as _};

src/midi.rs

@@ -32,7 +32,7 @@ struct NoteMsg {
 
 impl NoteMsg {
     fn new(on: bool, note: u8, velocity: u8) -> Self {
-        return NoteMsg { on, note, velocity };
+        NoteMsg { on, note, velocity }
     }
 }
 
@@ -48,7 +48,7 @@ struct ControllerMsg {
 
 impl ControllerMsg {
     fn new(controller: Controller, value: u8) -> Self {
-        return ControllerMsg { controller, value };
+        ControllerMsg { controller, value }
     }
 }
 
@@ -64,10 +64,10 @@ struct MidiMsg {
 
 impl MidiMsg {
     fn new(msg: MsgType, channel: u8) -> Self {
-        return MidiMsg {
+        MidiMsg {
             msg,
             channel: channel & 0xf,
-        };
+        }
     }
 }
 
@@ -115,9 +115,10 @@ pub struct MidiChannel {
 
 impl MidiChannel {
     pub fn new(channel: u8) -> Self {
-        return MidiChannel { channel };
+        MidiChannel { channel }
     }
 
+    /// MIDI Note-On
     pub async fn note_on(&self, note: u8, velocity: u8) {
         MIDI_QUEUE
             .send(MidiMsg::new(
@@ -127,6 +128,7 @@ impl MidiChannel {
             .await;
     }
 
+    /// MIDI Note-Off
     pub async fn note_off(&self, note: u8, velocity: u8) {
         MIDI_QUEUE
             .send(MidiMsg::new(
@@ -136,6 +138,7 @@ impl MidiChannel {
             .await;
     }
 
+    /// MIDI Controller (e.g. sustain pedal on/off)
     pub async fn controller(&self, ctrl: Controller, value: u8) {
         MIDI_QUEUE
             .send(MidiMsg::new(

src/pins.rs

@@ -103,7 +103,7 @@ pub struct TransparentPins {
     usable_extended_pins: usize,
 }
 
-/// Helper to define the onboard pins in TransparentPins
+/// Helper to define the onboard pins in [`TransparentPins`]
 #[macro_export]
 macro_rules! pin_array {
     ($($pin: expr),*) => {
@@ -171,7 +171,7 @@ impl TransparentPins {
     ) -> Result<Self, Error> {
         let mut ret = TransparentPins {
             addrs,
-            pins: pins.map(|x| Flex::new(x)),
+            pins: pins.map(Flex::new),
             i2c_bus: shared_bus::BusManagerSimple::new(i2c),
             disable_unsafe_pins: false,
             usable_pins_per_extender: PINS_PER_EXTENDER,