add: ECI_DEBUG_1("\n(ecasoundc_sa) writing command '%s'.\n", command);
context: void eci_command_r(eci_handle_t ptr, const char* command){  struct eci_internal* eci_rep = (struct eci_internal*)ptr;  assert(eci_rep != NULL);  /* fprintf(stderr, "\n(ecasoundc_sa) writing command '%s'.\n", command); */  eci_impl_clean_last_values(eci_rep->parser_repp);  write(eci_rep->cmd_write_fd_rep, command, strlen(command));  write(eci_rep->cmd_write_fd_rep, "\n", 1);  eci_rep->commands_counter_rep++;  if (eci_rep->commands_counter_rep - 1 !=      eci_rep->parser_repp->last_counter_rep) {    fprintf(stderr, 	    "(ecasoundc_sa) sync error; cmd=%d lastv=%d.\n", 	    eci_rep->commands_counter_rep,	    eci_rep->parser_repp->last_counter_rep);  }  if (eci_rep->commands_counter_rep >=      eci_rep->parser_repp->last_counter_rep) {    eci_impl_read_return_value(eci_rep);  }}