Initial import

1 files changed, 27 insertions, 0 deletions

diff --git a/drivers/staging/iio/ring_hw.h b/drivers/staging/iio/ring_hw.h
new file mode 100644
index 000000000..75bf47bfe
--- /dev/null
+++ b/drivers/staging/iio/ring_hw.h
@@ -0,0 +1,27 @@
+/*
+ * ring_hw.h - common functionality for iio hardware ring buffers
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * Copyright (c) 2009 Jonathan Cameron <jic23@kernel.org>
+ *
+ */
+
+#ifndef _RING_HW_H_
+#define _RING_HW_H_
+
+/**
+ * struct iio_hw_ring_buffer- hardware ring buffer
+ * @buf:	generic ring buffer elements
+ * @private:	device specific data
+ */
+struct iio_hw_buffer {
+	struct iio_buffer buf;
+	void *private;
+};
+
+#define iio_to_hw_buf(r) container_of(r, struct iio_hw_buffer, buf)
+
+#endif /* _RING_HW_H_ */