diff --git a/src/ds3232.rs b/src/ds3232.rs
index f7ea383..c6fce97 100644
--- a/src/ds3232.rs
+++ b/src/ds3232.rs
@@ -29,7 +29,7 @@ where
         self.iface.i2c
     }
 
-    /// Enable the 32kHz output when battery-powered.
+    /// Enable the 32kHz output when battery-powered. (enabled per default)
     ///
     /// Additionally, the 32kHz output needs to be enabled. See
     /// [`enable_32khz_output`](#method.enable_32khz_output).
diff --git a/src/ds3234.rs b/src/ds3234.rs
index b7fbd6e..393c668 100644
--- a/src/ds3234.rs
+++ b/src/ds3234.rs
@@ -30,7 +30,7 @@ where
         (self.iface.spi, self.iface.cs)
     }
 
-    /// Enable the 32kHz output when battery-powered.
+    /// Enable the 32kHz output when battery-powered. (enabled per default)
     ///
     /// Additionally, the 32kHz output needs to be enabled. See
     /// [`enable_32khz_output`](#method.enable_32khz_output).
diff --git a/src/ds323x/configuration.rs b/src/ds323x/configuration.rs
index 2a8f1a8..277da6e 100644
--- a/src/ds323x/configuration.rs
+++ b/src/ds323x/configuration.rs
@@ -8,7 +8,7 @@ impl<DI, IC, E> Ds323x<DI, IC>
 where
     DI: ReadData<Error = E> + WriteData<Error = E>
 {
-    /// Enable the oscillator (set the clock running).
+    /// Enable the oscillator (set the clock running) (default).
     pub fn enable(&mut self) -> Result<(), Error<E>> {
         let control = self.control;
         self.write_control(control & !BitFlags::EOSC)
@@ -32,7 +32,7 @@ where
         Ok(())
     }
 
-    /// Enable the 32kHz output.
+    /// Enable the 32kHz output. (enabled per default)
     pub fn enable_32khz_output(&mut self) -> Result<(), Error<E>> {
         let status = self.status | BitFlags::EN32KHZ;
         self.write_status_without_clearing_alarm(status)
@@ -61,7 +61,7 @@ where
         self.write_control(control | BitFlags::INTCN)
     }
 
-    /// Set the interrupt/square-wave output to be used as square-wave output.
+    /// Set the interrupt/square-wave output to be used as square-wave output. (default)
     pub fn use_int_sqw_output_as_square_wave(&mut self) -> Result<(), Error<E>> {
         let control = self.control;
         self.write_control(control & !BitFlags::INTCN)
diff --git a/src/lib.rs b/src/lib.rs
index 6793494..221bd09 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -399,7 +399,7 @@ pub enum Error<E> {
 /// Square-wave output frequency
 #[derive(Debug, Clone, PartialEq)]
 pub enum SqWFreq {
-    /// 1 Hz
+    /// 1 Hz (default)
     _1Hz,
     /// 1.024 Hz
     _1_024Hz,
@@ -414,7 +414,7 @@ pub enum SqWFreq {
 /// This is only available on the DS3232 and DS3234 devices.
 #[derive(Debug, Clone, PartialEq)]
 pub enum TempConvRate {
-    /// Once every 64 seconds
+    /// Once every 64 seconds (default)
     _64s,
     /// Once every 128 seconds
     _128s,