OLED driver with shared SPI bus integrated

src/display/tertiary_lcd.rs

@@ -16,7 +16,9 @@ where
             lcd
         }
         Err(_) => {
-            error!("I2C tertiary LCD init failed on PCF8574T at address 0x27; check bus wiring, power, and device address");
+            error!(
+                "I2C tertiary LCD init failed on PCF8574T at address 0x27; check bus wiring, power, and device address"
+            );
             panic!("tertiary LCD initialization failed");
         }
     }
@@ -35,7 +37,10 @@ where
         return Err(e);
     }
     if let Err(e) = lcd.print(text) {
-        error!("I2C LCD print failed on line {line}; payload length={} and device may be busy or disconnected", text.len());
+        error!(
+            "I2C LCD print failed on line {line}; payload length={} and device may be busy or disconnected",
+            text.len()
+        );
         return Err(e);
     }
     Ok(())
@@ -52,7 +57,9 @@ where
     const DISPLAY_ROWS: usize = 2;
 
     if let Err(e) = lcd.clear() {
-        error!("I2C LCD clear failed before wrapped write; check the shared bus and display response");
+        error!(
+            "I2C LCD clear failed before wrapped write; check the shared bus and display response"
+        );
         return Err(e);
     }
 
@@ -70,11 +77,16 @@ where
         };
 
         if let Err(e) = lcd.set_cursor(0, row as u8) {
-            error!("I2C LCD cursor move failed while writing wrapped row {row}; bus may be busy or device unresponsive");
+            error!(
+                "I2C LCD cursor move failed while writing wrapped row {row}; bus may be busy or device unresponsive"
+            );
             return Err(e);
         }
         if let Err(e) = lcd.print(chunk) {
-            error!("I2C LCD wrapped write failed on row {row}; chunk length={} and text may exceed display width", chunk.len());
+            error!(
+                "I2C LCD wrapped write failed on row {row}; chunk length={} and text may exceed display width",
+                chunk.len()
+            );
             return Err(e);
         }
         offset += chunk.len();