- struct sr_device *device;
- int i;
-
- if (!plugin) {
- sr_err("dev: %s: plugin was NULL", __func__);
- return NULL; /* TODO: SR_ERR_ARG */
- }
-
- /* TODO: Check if plugin_index valid? */
-
- /* TODO: Check if num_probes valid? */
-
- if (!(device = g_try_malloc0(sizeof(struct sr_device)))) {
- sr_err("dev: %s: device malloc failed", __func__);
- return NULL;
+ GSList *l;
+ struct sr_probe *probe;
+ char *old_trigger;
+ int ret;
+
+ if (!sdi)
+ return SR_ERR_ARG;
+
+ ret = SR_ERR_ARG;
+ for (l = sdi->probes; l; l = l->next) {
+ probe = l->data;
+ if (probe->index == probenum) {
+ old_trigger = probe->trigger;
+ ret = SR_OK;
+ if (g_strcmp0(trigger, old_trigger) == 0)
+ break;
+ /* Set new trigger if it has changed. */
+ probe->trigger = g_strdup(trigger);
+
+ if (sdi->driver && sdi->driver->config_probe_set) {
+ ret = sdi->driver->config_probe_set(
+ sdi, probe, SR_PROBE_SET_TRIGGER);
+ /* Roll back change if it wasn't applicable. */
+ if (ret == SR_ERR_ARG) {
+ g_free(probe->trigger);
+ probe->trigger = old_trigger;
+ break;
+ }
+ }
+ g_free(old_trigger);
+ break;
+ }