@@ -54,7 +54,9 @@ static const struct iio_chan_spec acpi_als_channels[] = {
.realbits = 32,
.storagebits = 32,
},
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+ /* _RAW is here for backward ABI compatibility */
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_PROCESSED),
},
};
@@ -152,7 +154,7 @@ static int acpi_als_read_raw(struct iio_dev *indio_dev,
s32 temp_val;
int ret;
- if (mask != IIO_CHAN_INFO_RAW)
+ if ((mask != IIO_CHAN_INFO_PROCESSED) && (mask != IIO_CHAN_INFO_RAW))
return -EINVAL;
/* we support only illumination (_ALI) so far. */
This is a note to let you know that I have just added a patch titled iio: light: acpi-als: Report data as processed to the linux-4.2.y-queue branch of the 4.2.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-4.2.y-queue This patch is scheduled to be released in version 4.2.8-ckt5. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 4.2.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ---8<------------------------------------------------------------ From dc315759a96090d62dd4f295d4bb033019181d0b Mon Sep 17 00:00:00 2001 From: Gabriele Mazzotta <gabriele.mzt@gmail.com> Date: Tue, 12 Jan 2016 16:21:39 +0100 Subject: iio: light: acpi-als: Report data as processed commit fa34e6dd44d7c02c8a8468ce4a52a7506f907bef upstream. As per the ACPI specification (Revision 5.0) [1], the data coming from the sensor represent the ambient light illuminance reading expressed in lux. So use IIO_CHAN_INFO_PROCESSED to signify that the data are pre-processed. However, to keep backward ABI compatibility, the IIO_CHAN_INFO_RAW bit is not removed. [1] http://www.acpi.info/DOWNLOADS/ACPIspec50.pdf This issue has also been responsible for at least one userspace bug report hence marking what is a small semantic fix really for stable. [2] https://github.com/hadess/iio-sensor-proxy/issues/46 Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/iio/light/acpi-als.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) -- 2.7.0