RME9652_DS
#define rme9652_running_double_speed(s) ((s)->control_register & RME9652_DS)
rate = RME9652_DS;
rate = RME9652_DS | RME9652_freq;
rme9652->control_register &= ~(RME9652_freq | RME9652_DS);
if (rate & RME9652_DS) {