diff options
| -rw-r--r-- | drivers/iio/inkern.c | 22 | ||||
| -rw-r--r-- | include/linux/iio/consumer.h | 14 |
2 files changed, 31 insertions, 5 deletions
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index 06ca3f7fcc44..4a5eff3f18bc 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -733,11 +733,11 @@ static int iio_channel_read_avail(struct iio_channel *chan, vals, type, length, info); } -int iio_read_avail_channel_raw(struct iio_channel *chan, - const int **vals, int *length) +int iio_read_avail_channel_attribute(struct iio_channel *chan, + const int **vals, int *type, int *length, + enum iio_chan_info_enum attribute) { int ret; - int type; mutex_lock(&chan->indio_dev->info_exist_lock); if (!chan->indio_dev->info) { @@ -745,11 +745,23 @@ int iio_read_avail_channel_raw(struct iio_channel *chan, goto err_unlock; } - ret = iio_channel_read_avail(chan, - vals, &type, length, IIO_CHAN_INFO_RAW); + ret = iio_channel_read_avail(chan, vals, type, length, attribute); err_unlock: mutex_unlock(&chan->indio_dev->info_exist_lock); + return ret; +} +EXPORT_SYMBOL_GPL(iio_read_avail_channel_attribute); + +int iio_read_avail_channel_raw(struct iio_channel *chan, + const int **vals, int *length) +{ + int ret; + int type; + + ret = iio_read_avail_channel_attribute(chan, vals, &type, length, + IIO_CHAN_INFO_RAW); + if (ret >= 0 && type != IIO_VAL_INT) /* raw values are assumed to be IIO_VAL_INT */ ret = -EINVAL; diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h index 9887f4f8e2a8..b2d34831ed7c 100644 --- a/include/linux/iio/consumer.h +++ b/include/linux/iio/consumer.h @@ -291,6 +291,20 @@ int iio_read_avail_channel_raw(struct iio_channel *chan, const int **vals, int *length); /** + * iio_read_avail_channel_attribute() - read available channel attribute values + * @chan: The channel being queried. + * @vals: Available values read back. + * @type: Type of values read back. + * @length: Number of entries in vals. + * @attribute: info attribute to be read back. + * + * Returns an error code, IIO_AVAIL_RANGE or IIO_AVAIL_LIST. + */ +int iio_read_avail_channel_attribute(struct iio_channel *chan, + const int **vals, int *type, int *length, + enum iio_chan_info_enum attribute); + +/** * iio_get_channel_type() - get the type of a channel * @channel: The channel being queried. * @type: The type of the channel. |