diff --git a/src/rstd/atomic/modes.rs b/src/rstd/atomic/modes.rs
index 4642933..fb10216 100644
--- a/src/rstd/atomic/modes.rs
+++ b/src/rstd/atomic/modes.rs
@@ -54,8 +54,11 @@ pub trait CRegularAtomic: AtomicBase + ImplMode<Mode = RegularMode> {
     fn cra_extend(self, tail: &[u8]) -> AParseResult<Self>;
 }
 
+/// Mostly same as [`AtomicModeParse`] but requires [`Mode`] to be [`RegularMode`].
 pub trait RegularAtomic: AtomicBase + ParseMode<Mode = RegularMode> {
+    /// Same as [`AtomicModeParse::ma_deserialize`].
     fn ra_deserialize(inlining: impl Inlining) -> AParseResult<Self>;
+    /// Same as [`AtomicModeParse::ma_extend`].
     fn ra_extend(self, tail: &[u8]) -> AParseResult<Self>;
 }