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staging:iio:in kernel users: Add a data field for channel specific info. 

Used to allow information about a given channel mapping to be passed
through from board files to the consumer drivers.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Jonathan Cameron 2012-06-30 20:06:00 +01:00
parent 84b36ce5f7
commit 0464415dd2
3 changed files with 5 additions and 0 deletions
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1
drivers/iio/inkern.c
View File

@ -203,6 +203,7 @@ struct iio_channel *iio_channel_get_all(const char *name)
if (name && strcmp(name, c->map->consumer_dev_name) != 0) if (name && strcmp(name, c->map->consumer_dev_name) != 0)
continue; continue;
chans[mapind].indio_dev = c->indio_dev; chans[mapind].indio_dev = c->indio_dev;
chans[mapind].data = c->map->consumer_data;
chans[mapind].channel = chans[mapind].channel =
iio_chan_spec_from_name(chans[mapind].indio_dev, iio_chan_spec_from_name(chans[mapind].indio_dev,
c->map->adc_channel_label); c->map->adc_channel_label);

2
include/linux/iio/consumer.h
View File

@ -18,10 +18,12 @@ struct iio_chan_spec;
* struct iio_channel - everything needed for a consumer to use a channel * struct iio_channel - everything needed for a consumer to use a channel
* @indio_dev: Device on which the channel exists. * @indio_dev: Device on which the channel exists.
* @channel: Full description of the channel. * @channel: Full description of the channel.
* @data: Data about the channel used by consumer.
*/ */
struct iio_channel { struct iio_channel {
struct iio_dev *indio_dev; struct iio_dev *indio_dev;
const struct iio_chan_spec *channel; const struct iio_chan_spec *channel;
void *data;
}; };
/** /**

2
include/linux/iio/machine.h
View File

@ -19,11 +19,13 @@
* @consumer_dev_name: Name to uniquely identify the consumer device. * @consumer_dev_name: Name to uniquely identify the consumer device.
* @consumer_channel: Unique name used to identify the channel on the * @consumer_channel: Unique name used to identify the channel on the
* consumer side. * consumer side.
* @consumer_data: Data about the channel for use by the consumer driver.
*/ */
struct iio_map { struct iio_map {
const char *adc_channel_label; const char *adc_channel_label;
const char *consumer_dev_name; const char *consumer_dev_name;
const char *consumer_channel; const char *consumer_channel;
void *consumer_data;
}; };
#endif #endif