Most of the channel offsets and scales in the adis16203 are incorrect:
* Temperature scale is off by a factor of 1000
* Voltage scale is off by a factor of 1000
* Temperature offset is completely wrong
This patch fixes these issues.
Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
---
drivers/staging/iio/accel/adis16203_core.c | 20 +++++++++++---------
1 file changed, 11 insertions(+), 9 deletions(-)
diff --git a/drivers/staging/iio/accel/adis16203_core.c b/drivers/staging/iio/accel/adis16203_core.c
index 002fa9d..e7b3441 100644
--- a/drivers/staging/iio/accel/adis16203_core.c
+++ b/drivers/staging/iio/accel/adis16203_core.c
@@ -316,25 +316,27 @@ static int adis16203_read_raw(struct iio_dev *indio_dev,
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
case IIO_VOLTAGE:
- *val = 0;
- if (chan->channel == 0)
- *val2 = 1220;
- else
- *val2 = 610;
+ if (chan->channel == 0) {
+ *val = 1;
+ *val2 = 220000; /* 1.22 mV */
+ } else {
+ *val = 0;
+ *val2 = 610000; /* 0.61 mV */
+ }
return IIO_VAL_INT_PLUS_MICRO;
case IIO_TEMP:
- *val = 0;
- *val2 = -470000;
+ *val = -470; /* -0.47 C */
+ *val2 = 0;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_INCLI:
*val = 0;
- *val2 = 25000;
+ *val2 = 25000; /* 0.025 degree */
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
}
case IIO_CHAN_INFO_OFFSET:
- *val = 25;
+ *val = 25000 / -470 - 1278; /* 25 C = 1278 */
return IIO_VAL_INT;
case IIO_CHAN_INFO_CALIBBIAS:
bits = 14;
--
1.7.10.4
--
To unsubscribe from this list: send the line "unsubscribe linux-iio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
