Improve docs.

src/devices/features/tier2.rs

@@ -138,23 +138,18 @@ macro_rules! impl_tier2_features {
                 Ok(())
             }
 
-            /// Sets the ALERT/RDY pin as conversion-ready pin.
+            /// Enables the ALERT/RDY pin as conversion-ready function.
             ///
-            /// This the ALERT/RDY pin outputs the OS bit when in OneShot mode, and
-            /// provides a continuous-conversion ready pulse when in
-            /// continuous-conversion mode.
+            /// When in one-shot mode, this makes the ALERT/RDY pin output the OS bit,
+            /// in continuous-conversion mode, provides a continuous-conversion ready pulse when.
             ///
-            /// When calling this the comparator will be disabled and the thresholds will be cleared.
+            /// When calling this the comparator will be disabled and any thresholds will be cleared.
             pub fn use_alert_rdy_pin_as_ready(&mut self) -> Result<(), E> {
-                if self.config
-                    != self
-                        .config
-                        .union(Config::COMP_QUE1)
-                        .union(Config::COMP_QUE0)
+                if !self.config.contains(Config::COMP_QUE)
                 {
                     self.disable_comparator()?;
                 }
-                self.write_reg_u16(HiThresh(0x8000))?;
+                self.write_reg_u16(HiThresh(0b1000000000000000))?;
                 self.write_reg_u16(LoThresh(0))
             }
         }