diff --git a/drivers/sensors/sensor.c b/drivers/sensors/sensor.c
index e83c2753e5d..4fad7d70509 100644
--- a/drivers/sensors/sensor.c
+++ b/drivers/sensors/sensor.c
@@ -419,7 +419,7 @@ static int sensor_ioctl(FAR struct file *filep, int cmd, unsigned long arg)
 
       case SNIOC_GET_NEVENTBUF:
         {
-          *val = lower->buffer_number;
+          *val = lower->buffer_number + lower->batch_number;
         }
         break;
 
diff --git a/include/nuttx/sensors/sensor.h b/include/nuttx/sensors/sensor.h
index 809fb021d9f..7cf121313af 100644
--- a/include/nuttx/sensors/sensor.h
+++ b/include/nuttx/sensors/sensor.h
@@ -581,6 +581,13 @@ struct sensor_lowerhalf_s
 
   uint32_t buffer_number;
 
+  /* The number of events that hardware fifo hold maximum number of samples,
+   * must be aligned with size of struct sensor_event_xxx.
+   * If sensor don't hardware fifo, you don't need to care about fifo_size.
+   */
+
+  uint32_t batch_number;
+
   /* The uncalibrated use to describe whether the sensor event is
    * uncalibrated. True is uncalibrated data, false is calibrated data,
    * default false.