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authorDaniel Baluta <daniel.baluta@intel.com>2016-02-03 18:50:37 +0200
committerJonathan Cameron <jic23@kernel.org>2016-02-06 18:18:11 +0000
commit1ad1ce9b669095bfe94c32ecd19f2a426837eb93 (patch)
tree0ddf6fbca5261eb72726a9a90fcac28ab5c965b7 /drivers/iio/pressure
parent478375cedcc0ae5b4cadd29ee5f74c3a5cb5d2ad (diff)
iio: pressure: ms5611: Add IIO_CHAN_INFO_SCALE to mask
This allows data exported via buffer interface to be converted to standard units in userspace. Signed-off-by: Daniel Baluta <daniel.baluta@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/pressure')
-rw-r--r--drivers/iio/pressure/ms5611_core.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/iio/pressure/ms5611_core.c b/drivers/iio/pressure/ms5611_core.c
index 2f3d9b4aca4e..6cf0e55380aa 100644
--- a/drivers/iio/pressure/ms5611_core.c
+++ b/drivers/iio/pressure/ms5611_core.c
@@ -201,6 +201,18 @@ static int ms5611_read_raw(struct iio_dev *indio_dev,
default:
return -EINVAL;
}
+ case IIO_CHAN_INFO_SCALE:
+ switch (chan->type) {
+ case IIO_TEMP:
+ *val = 10;
+ return IIO_VAL_INT;
+ case IIO_PRESSURE:
+ *val = 0;
+ *val2 = 1000;
+ return IIO_VAL_INT_PLUS_MICRO;
+ default:
+ return -EINVAL;
+ }
}
return -EINVAL;
@@ -218,11 +230,13 @@ static struct ms5611_chip_info chip_info_tbl[] = {
static const struct iio_chan_spec ms5611_channels[] = {
{
.type = IIO_PRESSURE,
- .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
+ .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
+ BIT(IIO_CHAN_INFO_SCALE),
},
{
.type = IIO_TEMP,
- .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
+ .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
+ BIT(IIO_CHAN_INFO_SCALE),
}
};