+ /** Sound pressure level frequency weighting. */
+ SR_CONF_SPL_WEIGHT_FREQ,
+
+ /** Sound pressure level time weighting. */
+ SR_CONF_SPL_WEIGHT_TIME,
+
+ /** Sound pressure level measurement range. */
+ SR_CONF_SPL_MEASUREMENT_RANGE,
+
+ /** Max hold mode. */
+ SR_CONF_HOLD_MAX,
+
+ /** Min hold mode. */
+ SR_CONF_HOLD_MIN,
+
+ /** Logic low-high threshold range. */
+ SR_CONF_VOLTAGE_THRESHOLD,
+
+ /** The device supports using a external clock. */
+ SR_CONF_EXTERNAL_CLOCK,
+
+ /**
+ * The device supports swapping channels. Typical this is between
+ * buffered and unbuffered channels.
+ */
+ SR_CONF_SWAP,
+