diff --git a/os/hal/src/adc.c b/os/hal/src/adc.c
index 4eafafac4..23b096f3e 100644
--- a/os/hal/src/adc.c
+++ b/os/hal/src/adc.c
@@ -209,6 +209,9 @@ bool_t adcStartConversionI(ADCDriver *adcp,
 
 /**
  * @brief   Stops an ongoing conversion.
+ * @details This function stops the currently ongoing conversion and returns
+ *          the driver in the @p ADC_READY state. If there was no conversion
+ *          being processed then the function does nothing.
  *
  * @param[in] adcp      pointer to the @p ADCDriver object
  */
@@ -236,6 +239,9 @@ void adcStopConversion(ADCDriver *adcp) {
 
 /**
  * @brief   Stops an ongoing conversion.
+ * @details This function stops the currently ongoing conversion and returns
+ *          the driver in the @p ADC_READY state. If there was no conversion
+ *          being processed then the function does nothing.
  *
  * @param[in] adcp      pointer to the @p ADCDriver object
  */