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| author |   Arnaud Pouliquen <arnaud.pouliquen@st.com> | 2018-01-10 11:13:06 +0100 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2018-01-10 10:30:08 +0000 |
| commit | 34739a213dbb85c8d775de42d52358255059c257 (patch) | |
| tree | a12a6cb37562cf92480e9b45e18c1f3257135e51 /drivers/iio | |
| parent | IIO: hw_consumer: add devm_iio_hw_consumer_alloc (diff) | |
| download | linux-dev-34739a213dbb85c8d775de42d52358255059c257.tar.xz linux-dev-34739a213dbb85c8d775de42d52358255059c257.zip | |
IIO: inkern: API for manipulating channel attributes
Extend the inkern API with functions for reading and writing
attribute of iio channels.
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/inkern.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index 069defcc6d9b..ec98790e2a28 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -664,9 +664,8 @@ err_unlock: } EXPORT_SYMBOL_GPL(iio_convert_raw_to_processed); -static int iio_read_channel_attribute(struct iio_channel *chan, - int *val, int *val2, - enum iio_chan_info_enum attribute) +int iio_read_channel_attribute(struct iio_channel *chan, int *val, int *val2, + enum iio_chan_info_enum attribute) { int ret; @@ -682,6 +681,7 @@ err_unlock: return ret; } +EXPORT_SYMBOL_GPL(iio_read_channel_attribute); int iio_read_channel_offset(struct iio_channel *chan, int *val, int *val2) { @@ -850,7 +850,8 @@ static int iio_channel_write(struct iio_channel *chan, int val, int val2, chan->channel, val, val2, info); } -int iio_write_channel_raw(struct iio_channel *chan, int val) +int iio_write_channel_attribute(struct iio_channel *chan, int val, int val2, + enum iio_chan_info_enum attribute) { int ret; @@ -860,12 +861,18 @@ int iio_write_channel_raw(struct iio_channel *chan, int val) goto err_unlock; } - ret = iio_channel_write(chan, val, 0, IIO_CHAN_INFO_RAW); + ret = iio_channel_write(chan, val, val2, attribute); err_unlock: mutex_unlock(&chan->indio_dev->info_exist_lock); return ret; } +EXPORT_SYMBOL_GPL(iio_write_channel_attribute); + +int iio_write_channel_raw(struct iio_channel *chan, int val) +{ + return iio_write_channel_attribute(chan, val, 0, IIO_CHAN_INFO_RAW); +} EXPORT_SYMBOL_GPL(iio_write_channel_raw); unsigned int iio_get_channel_ext_info_count(struct iio_channel *chan) |