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-rw-r--r--include/linux/iio/iio.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index 80d855061064..d86b753e9b30 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -338,6 +338,16 @@ struct iio_dev;
* provide a custom of_xlate function that reads the
* *args* and returns the appropriate index in registered
* IIO channels array.
+ * @hwfifo_set_watermark: function pointer to set the current hardware
+ * fifo watermark level; see hwfifo_* entries in
+ * Documentation/ABI/testing/sysfs-bus-iio for details on
+ * how the hardware fifo operates
+ * @hwfifo_flush_to_buffer: function pointer to flush the samples stored
+ * in the hardware fifo to the device buffer. The driver
+ * should not flush more than count samples. The function
+ * must return the number of samples flushed, 0 if no
+ * samples were flushed or a negative integer if no samples
+ * were flushed and there was an error.
**/
struct iio_info {
struct module *driver_module;
@@ -399,6 +409,9 @@ struct iio_info {
unsigned *readval);
int (*of_xlate)(struct iio_dev *indio_dev,
const struct of_phandle_args *iiospec);
+ int (*hwfifo_set_watermark)(struct iio_dev *indio_dev, unsigned val);
+ int (*hwfifo_flush_to_buffer)(struct iio_dev *indio_dev,
+ unsigned count);
};
/**