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| author | Peter Meerwald <pmeerw@pmeerw.net> | 2013-10-19 18:17:00 +0100 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2013-10-20 22:36:13 +0100 |
| commit | eb03610a9ceb4ebbe70c4a68a5bf9fb509a233c3 (patch) | |
| tree | 0abfc105462a2670e371833f4c108ee9f241addd /drivers/iio/magnetometer | |
| parent | 207287595bb2e9070d45780382f115fcd42e893d (diff) | |
| download | op-kernel-dev-eb03610a9ceb4ebbe70c4a68a5bf9fb509a233c3.zip op-kernel-dev-eb03610a9ceb4ebbe70c4a68a5bf9fb509a233c3.tar.gz | |
iio: Correct description how to convert microtesla to gauss
this just fixes the comment; however, I'm not sure if the driver reports
measurements correctly; the raw values are 0.3 uT / LSB; IIO is supposed
to report magnetic fields in Gauss, so the scale should be around 1/300
(ignoring ASA) -- but value and scale are returned as VAL_INT
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/magnetometer')
| -rw-r--r-- | drivers/iio/magnetometer/ak8975.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c index 7105f22..ff284e5 100644 --- a/drivers/iio/magnetometer/ak8975.c +++ b/drivers/iio/magnetometer/ak8975.c @@ -263,7 +263,7 @@ static int ak8975_setup(struct i2c_client *client) * * HuT = H * 1229/4096, or roughly, 3/10. * - * Since 1uT = 100 gauss, our final scale factor becomes: + * Since 1uT = 0.01 gauss, our final scale factor becomes: * * Hadj = H * ((ASA + 128) / 256) * 3/10 * 100 * Hadj = H * ((ASA + 128) * 30 / 256 |
