ST_MAGN_TRIGGER_SET_STATE   33 drivers/iio/magnetometer/st_magn.h #define ST_MAGN_TRIGGER_SET_STATE (&st_magn_trig_set_state)
ST_MAGN_TRIGGER_SET_STATE   50 drivers/iio/magnetometer/st_magn.h #define ST_MAGN_TRIGGER_SET_STATE NULL