Implement embedded-io-async traits for USB CDC ACM

1 files changed, 9 insertions, 0 deletions

diff --git a/embassy-usb-driver/src/lib.rs b/embassy-usb-driver/src/lib.rs
index 3b705c8c4..d204e4d85 100644
--- a/embassy-usb-driver/src/lib.rs
+++ b/embassy-usb-driver/src/lib.rs
@@ -395,3 +395,12 @@ pub enum EndpointError {
     /// The endpoint is disabled.
     Disabled,
 }
+
+impl embedded_io_async::Error for EndpointError {
+    fn kind(&self) -> embedded_io_async::ErrorKind {
+        match self {
+            Self::BufferOverflow => embedded_io_async::ErrorKind::OutOfMemory,
+            Self::Disabled => embedded_io_async::ErrorKind::NotConnected,
+        }
+    }
+}