+ (void)probe_group;
+
+ switch (key) {
+ case SR_CONF_SCAN_OPTIONS:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+ hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
+ break;
+ case SR_CONF_DEVICE_OPTIONS:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+ hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_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_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:
+ if (!sdi || !sdi->priv)
+ /* Can't know this until we have the exact model. */
+ return SR_ERR_ARG;
+ devc = sdi->priv;
+ *data = g_variant_new_strv(trigger_sources,
+ devc->has_digital ? ARRAY_SIZE(trigger_sources) : 4);
+ break;
+ default:
+ return SR_ERR_NA;
+ }