summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorLars-Peter Clausen <lars@metafoo.de>2012-08-10 17:36:00 +0100
committerJonathan Cameron <jic23@kernel.org>2012-08-16 20:24:36 +0100
commita684a0c711d384665b43f9079a035e52a2761eab (patch)
treecb315410e43a48f94b71ebc0d85e6ad0bec388a5
parent74aa933894e1c32376a8372ec8264b8c6f7faf24 (diff)
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 <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
-rw-r--r--drivers/staging/iio/adc/ad7192.c6
1 files changed, 3 insertions, 3 deletions
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),