CHAN_MASK_TOUCHSCREEN_4WIRE 475 drivers/iio/adc/at91_adc.c rsvd_mask = CHAN_MASK_TOUCHSCREEN_4WIRE; CHAN_MASK_TOUCHSCREEN_4WIRE 549 drivers/iio/adc/mxs-lradc-adc.c rsvd_mask |= CHAN_MASK_TOUCHSCREEN_4WIRE;