Add three new macros: IIO_DEVICE_ATTR_RO, IIO_DEVICE_ATTR_WO and
IIO_DEVICE_ATTR_RW to reduce the amount of boiler plate code that
is needed for creating new attributes. This mimics the *_RO, *_WO,
and *_RW macros that are found in include/linux/device.h and
include/linux/sysfs.h.
Signed-off-by: Brian Masney <masneyb@xxxxxxxxxxxxx>
---
include/linux/iio/sysfs.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/include/linux/iio/sysfs.h b/include/linux/iio/sysfs.h
index 9cd8f74..f7c6431 100644
--- a/include/linux/iio/sysfs.h
+++ b/include/linux/iio/sysfs.h
@@ -59,6 +59,19 @@ struct iio_const_attr {
struct iio_dev_attr iio_dev_attr_##_name \
= IIO_ATTR(_name, _mode, _show, _store, _addr)
+#define IIO_DEVICE_ATTR_RO(_name, _addr) \
+ struct iio_dev_attr iio_dev_attr_##_name \
+ = IIO_ATTR(_name, S_IRUGO, _name##_show, NULL, _addr)
+
+#define IIO_DEVICE_ATTR_WO(_name, _addr) \
+ struct iio_dev_attr iio_dev_attr_##_name \
+ = IIO_ATTR(_name, S_IWUSR, NULL, _name##_store, _addr)
+
+#define IIO_DEVICE_ATTR_RW(_name, _addr) \
+ struct iio_dev_attr iio_dev_attr_##_name \
+ = IIO_ATTR(_name, (S_IWUSR | S_IRUGO), _name##_show, _name##_store, \
+ _addr)
+
#define IIO_DEVICE_ATTR_NAMED(_vname, _name, _mode, _show, _store, _addr) \
struct iio_dev_attr iio_dev_attr_##_vname \
= IIO_ATTR(_name, _mode, _show, _store, _addr)
--
2.7.4
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