iio: Add new operating mode for non triggered sw buffers
There was a need for non triggered software buffer type. It can be used when
triggered model does not fit and INDIO_BUFFER_HARDWARE causes confusion because
the data stream can be obtained not directly form hardware backend.
Suggested-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Karol Wrona <k.wrona@samsung.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index 878d861..5902020 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -286,10 +286,11 @@
/* Device operating modes */
#define INDIO_DIRECT_MODE 0x01
#define INDIO_BUFFER_TRIGGERED 0x02
+#define INDIO_BUFFER_SOFTWARE 0x04
#define INDIO_BUFFER_HARDWARE 0x08
#define INDIO_ALL_BUFFER_MODES \
- (INDIO_BUFFER_TRIGGERED | INDIO_BUFFER_HARDWARE)
+ (INDIO_BUFFER_TRIGGERED | INDIO_BUFFER_HARDWARE | INDIO_BUFFER_SOFTWARE)
#define INDIO_MAX_RAW_ELEMENTS 4
@@ -593,7 +594,8 @@
static inline bool iio_buffer_enabled(struct iio_dev *indio_dev)
{
return indio_dev->currentmode
- & (INDIO_BUFFER_TRIGGERED | INDIO_BUFFER_HARDWARE);
+ & (INDIO_BUFFER_TRIGGERED | INDIO_BUFFER_HARDWARE |
+ INDIO_BUFFER_SOFTWARE);
}
/**