iio:inkern: Add function to read the processed value

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Add a function to read a processed value from a channel. The function will first
attempt to read the IIO_CHAN_INFO_PROCESSED attribute. If that fails it will
read the IIO_CHAN_INFO_RAW attribute and convert the result from a raw value to
a processed value.

The patch also introduces a function to convert raw value to a processed value
and exports it, in case a user needs or wants to do the conversion by itself.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

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This commit is contained in:

Lars-Peter Clausen 2012-09-17 13:17:00 +01:00 • committed by Jonathan Cameron

parent 45f010baa0

commit 48e44ce0f8

3 changed files with 164 additions and 9 deletions

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118

drivers/iio/inkern.c

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38

include/linux/iio/consumer.h

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17

include/linux/iio/iio.h

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