From a684a0c711d384665b43f9079a035e52a2761eab Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Fri, 10 Aug 2012 17:36:00 +0100 Subject: staging:iio:ad7192: Mark channels as unsigned The values reported by the AD7793 are unsigned. In uniploar mode: 0x000000 is zeroscale 0xffffff is fullscale In bipolar mode: 0x000000 is negative fullscale 0x800000 is zeroscale 0xffffff is positive fullscale In bipolar mode there is a binary offset, but the values are still unsigned. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron --- drivers/staging/iio/adc/ad7192.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/staging/iio/adc/ad7192.c') diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c index 0a1bc6a31d02..7ba699486326 100644 --- a/drivers/staging/iio/adc/ad7192.c +++ b/drivers/staging/iio/adc/ad7192.c @@ -945,7 +945,7 @@ static const struct iio_info ad7195_info = { IIO_CHAN_INFO_SCALE_SHARED_BIT, \ .address = _address, \ .scan_index = _si, \ - .scan_type = IIO_ST('s', 24, 32, 0)} + .scan_type = IIO_ST('u', 24, 32, 0)} #define AD7192_CHAN(_chan, _address, _si) \ { .type = IIO_VOLTAGE, \ @@ -955,7 +955,7 @@ static const struct iio_info ad7195_info = { IIO_CHAN_INFO_SCALE_SHARED_BIT, \ .address = _address, \ .scan_index = _si, \ - .scan_type = IIO_ST('s', 24, 32, 0)} + .scan_type = IIO_ST('u', 24, 32, 0)} #define AD7192_CHAN_TEMP(_chan, _address, _si) \ { .type = IIO_TEMP, \ @@ -965,7 +965,7 @@ static const struct iio_info ad7195_info = { IIO_CHAN_INFO_SCALE_SEPARATE_BIT, \ .address = _address, \ .scan_index = _si, \ - .scan_type = IIO_ST('s', 24, 32, 0)} + .scan_type = IIO_ST('u', 24, 32, 0)} static struct iio_chan_spec ad7192_channels[] = { AD7192_CHAN_DIFF(1, 2, NULL, AD7192_CH_AIN1P_AIN2M, 0), -- cgit v1.2.3-59-g8ed1b