ad7280_read_all_channels 779 drivers/staging/iio/adc/ad7280a.c ret = ad7280_read_all_channels(st, st->scan_cnt, channels); ad7280_read_all_channels 878 drivers/staging/iio/adc/ad7280a.c ret = ad7280_read_all_channels(st, st->scan_cnt, NULL);