for (l = analog->meaning->channels, c = 0; l; l = l->next, c++) {
ch = l->data;
g_string_append_printf(*out, "%s: ", ch->name);
for (l = analog->meaning->channels, c = 0; l; l = l->next, c++) {
ch = l->data;
g_string_append_printf(*out, "%s: ", ch->name);