+static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi)
+{
+ struct sr_usb_dev_inst *usb;
+ char str[128];
+
+ switch (id) {
+ case SR_CONF_CONN:
+ if (!sdi || !sdi->conn)
+ return SR_ERR_ARG;
+ usb = sdi->conn;
+ if (usb->address == 255)
+ /* Device still needs to re-enumerate after firmware
+ * upload, so we don't know its (future) address. */
+ return SR_ERR;
+ snprintf(str, 128, "%d.%d", usb->bus, usb->address);
+ *data = g_variant_new_string(str);
+ break;
+ case SR_CONF_NUM_TIMEBASE:
+ *data = g_variant_new_int32(NUM_TIMEBASE);
+ break;
+ case SR_CONF_NUM_VDIV:
+ *data = g_variant_new_int32(NUM_VDIV);
+ break;
+ default:
+ return SR_ERR_NA;
+ }
+
+ return SR_OK;
+}
+
+static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)