bmc150_magn_set_power_state
ret = bmc150_magn_set_power_state(data, true);
bmc150_magn_set_power_state(data, false);
ret = bmc150_magn_set_power_state(data, false);
return bmc150_magn_set_power_state(data, true);
return bmc150_magn_set_power_state(data, false);