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authorNarcisa Ana Maria Vasile <narcisaanamaria12@gmail.com>2017-12-06 19:57:58 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-01-08 18:03:44 +0300
commit8f114acd4e1a9cfa05b70bcc4219bc88197b5c9b (patch)
tree9f8cde7d411bd249c0fdbb0b0c27c442cc1b9346 /fs/ext4/Kconfig
parent9bf94f836e32ea168ec7448a523c11480317ad79 (diff)
downloadlinux-8f114acd4e1a9cfa05b70bcc4219bc88197b5c9b.tar.xz
iio: chemical: ccs811: Fix output of IIO_CONCENTRATION channels
in_concentration_raw should report, according to sysfs-bus-iio documentation, a "Raw (unscaled no offset etc.) percentage reading of a substance." Modify scale to convert from ppm/ppb to percentage: 1 ppm = 0.0001% 1 ppb = 0.0000001% There is no offset needed to convert the ppm/ppb to percentage, so remove offset from IIO_CONCENTRATION (IIO_MOD_CO2) channel. Cc'd stable to reduce chance of userspace breakage in the long run as we fix this wrong bit of ABI usage. Signed-off-by: Narcisa Ana Maria Vasile <narcisaanamaria12@gmail.com> Cc: <Stable@vger.kernel.org> Reviewed-by: Matt Ranostay <matt.ranostay@konsulko.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/ext4/Kconfig')
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