uni-t-ut32x: Accept SR_CONF_CONN, fixing scan.

src/hardware/uni-t-ut32x/api.c

@@ -21,6 +21,10 @@
 #include <string.h>
 #include "protocol.h"
 
+static const uint32_t scanopts[] = {
+	SR_CONF_CONN,
+};
+
 static const uint32_t devopts[] = {
 	SR_CONF_THERMOMETER,
 	SR_CONF_CONTINUOUS,
@@ -210,6 +214,10 @@ static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *
 	(void)cg;
 
 	switch (key) {
+	case SR_CONF_SCAN_OPTIONS:
+		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+				scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
+		break;
 	case SR_CONF_DEVICE_OPTIONS:
 		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 				devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));