2 files changed, 5 insertions, 1 deletions

diff --git a/embassy-sync/src/waitqueue/atomic_waker_turbo.rs b/embassy-sync/src/waitqueue/atomic_waker_turbo.rs
index c06b83056..a45adeab8 100644
--- a/embassy-sync/src/waitqueue/atomic_waker_turbo.rs
+++ b/embassy-sync/src/waitqueue/atomic_waker_turbo.rs
@@ -7,6 +7,7 @@ use core::task::Waker;
 /// If a waker is registered, registering another waker will replace the previous one without waking it.
 /// The intended use case is to wake tasks from interrupts. Therefore, it is generally not expected,
 /// that multiple tasks register try to register a waker simultaneously.
+#[derive(Debug)]
 pub struct AtomicWaker {
     waker: AtomicPtr<()>,
 }
diff --git a/embassy-sync/src/waitqueue/multi_waker.rs b/embassy-sync/src/waitqueue/multi_waker.rs
index 0384d6bed..56c0cd1b2 100644
--- a/embassy-sync/src/waitqueue/multi_waker.rs
+++ b/embassy-sync/src/waitqueue/multi_waker.rs
@@ -5,6 +5,7 @@ use heapless::Vec;
 /// Utility struct to register and wake multiple wakers.
 /// Queue of wakers with a maximum length of `N`.
 /// Intended for waking multiple tasks.
+#[derive(Debug)]
 pub struct MultiWakerRegistration<const N: usize> {
     wakers: Vec<Waker, N>,
 }
@@ -15,7 +16,9 @@ impl<const N: usize> MultiWakerRegistration<N> {
         Self { wakers: Vec::new() }
     }
 
-    /// Register a waker. If the buffer is full the function returns it in the error
+    /// Register a waker.
+    ///
+    /// If the buffer is full, [wakes all the wakers](Self::wake), clears its buffer and registers the waker.
     pub fn register(&mut self, w: &Waker) {
         // If we already have some waker that wakes the same task as `w`, do nothing.
         // This avoids cloning wakers, and avoids unnecessary mass-wakes.