iio: Add support for indicating fixed watermarks

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For buffers which have a fixed wake-up watermark the watermark attribute
should be read-only. Add a new FIXED_WATERMARK flag to the
struct iio_buffer_access_funcs, which can be set by a buffer
implementation.

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

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Lars-Peter Clausen 2015-10-13 18:10:26 +02:00 • committed by Jonathan Cameron

parent 4a60535726

commit b440655b89

2 changed files with 13 additions and 0 deletions

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5

drivers/iio/industrialio-buffer.c

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8

include/linux/iio/buffer.h

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