diff --git a/linux/spi/SpiComIF.h b/linux/spi/SpiComIF.h
index 652a7f3..4994097 100644
--- a/linux/spi/SpiComIF.h
+++ b/linux/spi/SpiComIF.h
@@ -16,7 +16,8 @@ class SpiCookie;
 /**
  * @brief   Encapsulates access to linux SPI driver for FSFW objects
  * @details
- * Right now, only full-duplex SPI is supported.
+ * Right now, only full-duplex SPI is supported. Most device specific transfer properties
+ * are contained in the SPI cookie.
  * @author  R. Mueller
  */
 class SpiComIF: public DeviceCommunicationIF, public SystemObject {