diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2012-10-15 10:35:00 +0100 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2012-10-19 16:13:06 +0100 |
| commit | 8735cf94afc1a63526417762c288501fc239c12d (patch) | |
| tree | d6e1f786eeab74334ccff703e7325bd87387c4d0 /drivers/staging/iio | |
| parent | 9dbf8ccde1b810a59b684e1d1aec7f9d2d007162 (diff) | |
staging:iio: Fix adis16201 channel offsets and scales
Most of the channel offsets and scales in the adis16201 are incorrect:
* Temperature scale is off by a factor of 1000
* Voltage scale is off by a factor of 1000
* Acceleration scale is in g instead of m/(s**2)
* Temperature offset is completely wrong
This patch fixes these issues.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/staging/iio')
| -rw-r--r-- | drivers/staging/iio/accel/adis16201_core.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/drivers/staging/iio/accel/adis16201_core.c b/drivers/staging/iio/accel/adis16201_core.c index 8e37d6e04277..b12ca68cd9e4 100644 --- a/drivers/staging/iio/accel/adis16201_core.c +++ b/drivers/staging/iio/accel/adis16201_core.c @@ -310,30 +310,32 @@ static int adis16201_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; /* 0.610 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_ACCEL: *val = 0; - *val2 = 462500; - return IIO_VAL_INT_PLUS_MICRO; + *val2 = IIO_G_TO_M_S_2(462400); /* 0.4624 mg */ + return IIO_VAL_INT_PLUS_NANO; case IIO_INCLI: *val = 0; - *val2 = 100000; + *val2 = 100000; /* 0.1 degree */ return IIO_VAL_INT_PLUS_MICRO; default: return -EINVAL; } break; case IIO_CHAN_INFO_OFFSET: - *val = 25; + *val = 25000 / -470 - 1278; /* 25 C = 1278 */ return IIO_VAL_INT; case IIO_CHAN_INFO_CALIBBIAS: switch (chan->type) { |