+static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ GVariant *tuple, *rational[2];
+ GVariantBuilder gvb;
+ unsigned int i;
+
+ (void)sdi;
+
+ if (!sdi)
+ return SR_ERR_ARG;
+
+ devc = sdi->priv;
+ switch (key) {
+ case SR_CONF_SCAN_OPTIONS:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+ scanopts, ARRAY_SIZE(scanopts), sizeof(int32_t));
+ break;
+ case SR_CONF_DEVICE_OPTIONS:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+ devopts, ARRAY_SIZE(devopts), sizeof(int32_t));
+ break;
+ case SR_CONF_BUFFERSIZE:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT64,
+ devc->profile->buffersizes, 2, sizeof(uint64_t));
+ break;
+ case SR_CONF_COUPLING:
+ *data = g_variant_new_strv(coupling, ARRAY_SIZE(coupling));
+ break;
+ case SR_CONF_VDIV:
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
+ for (i = 0; i < ARRAY_SIZE(vdivs); i++) {
+ rational[0] = g_variant_new_uint64(vdivs[i][0]);
+ rational[1] = g_variant_new_uint64(vdivs[i][1]);
+ tuple = g_variant_new_tuple(rational, 2);
+ g_variant_builder_add_value(&gvb, tuple);
+ }
+ *data = g_variant_builder_end(&gvb);
+ break;
+ case SR_CONF_FILTER:
+ *data = g_variant_new_strv(filter_targets,
+ ARRAY_SIZE(filter_targets));
+ break;
+ case SR_CONF_TIMEBASE:
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
+ for (i = 0; i < ARRAY_SIZE(timebases); i++) {
+ rational[0] = g_variant_new_uint64(timebases[i][0]);
+ rational[1] = g_variant_new_uint64(timebases[i][1]);
+ tuple = g_variant_new_tuple(rational, 2);
+ g_variant_builder_add_value(&gvb, tuple);
+ }
+ *data = g_variant_builder_end(&gvb);
+ break;
+ case SR_CONF_TRIGGER_SOURCE:
+ *data = g_variant_new_strv(trigger_sources,
+ ARRAY_SIZE(trigger_sources));
+ break;
+ default:
+ return SR_ERR_NA;
+ }
+
+ return SR_OK;
+}
+
+static void send_chunk(struct sr_dev_inst *sdi, unsigned char *buf,