linux-toradex.git/include/linux/iio/consumer.h, branch v4.12

iio: inkern: add helpers to query available values from channels

2016-11-13T11:40:26+00:00

Specifically a helper for reading the available maximum raw value of a
channel and a helper for forwarding read_avail requests for raw values
from one iio driver to an iio channel that is consumed.

These rather specific helpers are in turn built with generic helpers
making it easy to build more helpers for available values as needed.

Signed-off-by: Peter Rosin 
Signed-off-by: Jonathan Cameron

iio: inkern: add iio_read_channel_offset helper

2016-09-27T19:33:02+00:00

Allow access to underlying channel IIO_CHAN_INFO_OFFSET from a consumer.

Signed-off-by: Matt Ranostay 
Signed-off-by: Jonathan Cameron

iio: buffer-callback: allow getting underlying iio_dev

2016-08-21T10:47:19+00:00

Add iio_channel_cb_get_iio_dev function to allow getting the
underlying iio_dev. This is useful for setting the trigger of the
consumer ADC device.

Signed-off-by: Matt Ranostay 
Signed-off-by: Jonathan Cameron

iio: core: Add devm_ APIs for iio_channel_{get,release}_all

2016-04-19T18:58:15+00:00

Some of kernel driver uses the IIO framework to get the sensor
value via ADC or IIO HW driver. The client driver get iio channel
by iio_channel_get_all() and release it by calling
iio_channel_release_all().

Add resource managed version (devm_*) of these APIs so that if client
calls the devm_iio_channel_get_all() then it need not to release it
explicitly, it can be done by managed device framework when driver
get un-binded.

This reduces the code in error path and also need of .remove callback in
some cases.

Signed-off-by: Laxman Dewangan 
Signed-off-by: Jonathan Cameron

iio: core: Add devm_ APIs for iio_channel_{get,release}

2016-04-19T18:58:14+00:00

Some of kernel driver uses the IIO framework to get the sensor
value via ADC or IIO HW driver. The client driver get iio channel
by iio_channel_get() and release it by calling iio_channel_release().

Add resource managed version (devm_*) of these APIs so that if client
calls the devm_iio_channel_get() then it need not to release it explicitly,
it can be done by managed device framework when driver get un-binded.

This reduces the code in error path and also need of .remove callback in
some cases.

Signed-off-by: Laxman Dewangan 
Signed-off-by: Jonathan Cameron

include: linux: iio: Fix function parameter name in kernel doc

2015-08-02T17:34:18+00:00

Fix buffer name from kernel doc according to the function parameter.

Signed-off-by: Cristina Opriceana 
Signed-off-by: Jonathan Cameron

iio: consumer.h: Fix scale factor in function comment

2014-12-12T12:28:36+00:00

1 milivolt is equal to 1000000 nanovolts.

Signed-off-by: Ivan T. Ivanov 
Signed-off-by: Jonathan Cameron

iio: inkern: add iio_write_channel_raw

2014-12-12T12:28:27+00:00

Introduce API for easy in-kernel setting of DAC values.

Signed-off-by: Dmitry Eremin-Solenikov 
Signed-off-by: Jonathan Cameron

iio: inkern: add iio_read_channel_average_raw

2014-03-16T18:00:33+00:00

Add iio_read_channel_average_raw to support reading
averaged raw values in consumer drivers.

Signed-off-by: Sebastian Reichel 
Signed-off-by: Jonathan Cameron

iio: iio_push_to_buffers(): Change type of 'data' to const void *

2013-09-15T18:02:07+00:00

Change the type of the 'data' parameter for iio_push_to_buffers() from 'u8 *' to
'const void *'. Drivers typically use the correct type (e.g. __be16 *) for their
data buffer. When passing the buffer to iio_push_to_buffers() it needs to be
cast to 'u8 *' for the compiler to not complain (and also having to add __force
if we want to keep sparse happy as well). Since the buffer implementation should
not care about the data layout (except the size of one sample) using a void
pointer is the correct thing to do. Also make it const as the buffer
implementations are not supposed to modify it.

Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron