1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/staging/iio/iio_core.h b/drivers/staging/iio/iio_core.h
new file mode 100644
index 0000000..36159e0
--- /dev/null
+++ b/drivers/staging/iio/iio_core.h
@@ -0,0 +1,63 @@
+/* The industrial I/O core function defs.
+ *
+ * Copyright (c) 2008 Jonathan Cameron
+ *
+ * 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.
+ *
+ * These definitions are meant for use only within the IIO core, not individual
+ * drivers.
+ */
+
+#ifndef _IIO_CORE_H_
+#define _IIO_CORE_H_
+
+int __iio_add_chan_devattr(const char *postfix,
+			   struct iio_chan_spec const *chan,
+			   ssize_t (*func)(struct device *dev,
+					   struct device_attribute *attr,
+					   char *buf),
+			   ssize_t (*writefunc)(struct device *dev,
+						struct device_attribute *attr,
+						const char *buf,
+						size_t len),
+			   u64 mask,
+			   bool generic,
+			   struct device *dev,
+			   struct list_head *attr_list);
+
+/* Event interface flags */
+#define IIO_BUSY_BIT_POS 1
+
+#ifdef CONFIG_IIO_BUFFER
+struct poll_table_struct;
+
+int iio_chrdev_buffer_open(struct iio_dev *indio_dev);
+void iio_chrdev_buffer_release(struct iio_dev *indio_dev);
+
+unsigned int iio_buffer_poll(struct file *filp,
+			     struct poll_table_struct *wait);
+ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
+				      size_t n, loff_t *f_ps);
+
+
+#define iio_buffer_poll_addr (&iio_buffer_poll)
+#define iio_buffer_read_first_n_outer_addr (&iio_buffer_read_first_n_outer)
+
+#else
+
+static inline int iio_chrdev_buffer_open(struct iio_dev *indio_dev)
+{
+	return -EINVAL;
+}
+
+static inline void iio_chrdev_buffer_release(struct iio_dev *indio_dev)
+{}
+
+#define iio_buffer_poll_addr NULL
+#define iio_buffer_read_first_n_outer_addr NULL
+
+#endif
+
+#endif