diff --git a/libuavcan_drivers/stm32/driver/include/uavcan_stm32/can.hpp b/libuavcan_drivers/stm32/driver/include/uavcan_stm32/can.hpp
index ca2e1aabbd..83226d94ce 100644
--- a/libuavcan_drivers/stm32/driver/include/uavcan_stm32/can.hpp
+++ b/libuavcan_drivers/stm32/driver/include/uavcan_stm32/can.hpp
@@ -164,7 +164,8 @@ public:
     unsigned getRxQueueLength() const;
 
     /**
-     * Returns last hardware error code (LEC field in the register ESR)
+     * Returns last hardware error code (LEC field in the register ESR).
+     * The error code will be reset.
      */
     uavcan::uint8_t yieldLastHardwareErrorCode();
 
@@ -177,7 +178,7 @@ public:
 
 /**
  * CAN driver, incorporates all available CAN ifaces.
- * Please avoid direct usage, prefer @ref CanInitHelper instead.
+ * Please avoid direct use, prefer @ref CanInitHelper instead.
  */
 class CanDriver : public uavcan::ICanDriver, uavcan::Noncopyable
 {
diff --git a/libuavcan_drivers/stm32/driver/include/uavcan_stm32/clock.hpp b/libuavcan_drivers/stm32/driver/include/uavcan_stm32/clock.hpp
index cc98469059..d4afa07e5f 100644
--- a/libuavcan_drivers/stm32/driver/include/uavcan_stm32/clock.hpp
+++ b/libuavcan_drivers/stm32/driver/include/uavcan_stm32/clock.hpp
@@ -18,7 +18,7 @@ namespace clock
 void init();
 
 /**
- * Returns current monotonic time passed since the moment when clock::init() was called.
+ * Returns current monotonic time since the moment when clock::init() was called.
  * This function is thread safe.
  */
 uavcan::MonotonicTime getMonotonic();
@@ -30,7 +30,7 @@ uavcan::MonotonicTime getMonotonic();
 uavcan::UtcTime getUtc();
 
 /**
- * Performs UTC time adjustment.
+ * Performs UTC phase and frequency adjustment.
  * The UTC time will be zero until first adjustment has been performed.
  * This function is thread safe.
  */