diff --git a/internal/usbgadget/utils.go b/internal/usbgadget/utils.go
index 56f9c308..85bf1579 100644
--- a/internal/usbgadget/utils.go
+++ b/internal/usbgadget/utils.go
@@ -121,6 +121,12 @@ func (u *UsbGadget) writeWithTimeout(file *os.File, data []byte) (n int, err err
 		return
 	}
 
+	u.log.Trace().
+		Str("file", file.Name()).
+		Bytes("data", data).
+		Err(err).
+		Msg("write failed")
+
 	if errors.Is(err, os.ErrDeadlineExceeded) {
 		u.logWithSuppression(
 			fmt.Sprintf("writeWithTimeout_%s", file.Name()),