staging:iio:kfifo buffer implementation

A very simple use of a kfifo as an alternative for the ring_sw

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Tested-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/staging/iio/Kconfig b/drivers/staging/iio/Kconfig
index e2ac07d8611..6775bf90e2f 100644
--- a/drivers/staging/iio/Kconfig
+++ b/drivers/staging/iio/Kconfig
@@ -29,6 +29,15 @@ config IIO_SW_RING
           with the intention that some devices would be able to write
           in interrupt context.
 
+config IIO_KFIFO_BUF
+        select IIO_TRIGGER
+        tristate "Industrial I/O buffering based on kfifo"
+        help
+          A simple fifo based on kfifo.  Use this if you want a fifo
+          rather than a ring buffer. Note that this currently provides
+          no buffer events so it is up to userspace to work out how
+          often to read from the buffer.
+
 endif # IIO_RINGBUFFER
 
 config IIO_TRIGGER