adv7511_s_power
adv7511_s_power(sd, 0);
adv7511_s_power(sd, false);
adv7511_s_power(sd, true);
if (!adv7511_s_power(sd, true)) {
adv7511_s_power(sd, false);
adv7511_s_power(sd, false);
adv7511_s_power(sd, true);
adv7511_s_power(sd, 0);
.s_power = adv7511_s_power,