staging: iio: lis3l02dq add _type attributes for all scan elements

[mv-sheeva.git] / drivers / staging / iio / ring_generic.h

diff --git a/drivers/staging/iio/ring_generic.h b/drivers/staging/iio/ring_generic.h
index 7b29cd5a91d2f171d6609a9818bb7f5ac1c08c1a..692b967eee7435f9da9e1a87b540cbd88658f196 100644 (file)
--- a/drivers/staging/iio/ring_generic.h
+++ b/drivers/staging/iio/ring_generic.h
@@ -247,7 +247,7 @@ ssize_t iio_scan_el_ts_show(struct device *dev, struct device_attribute *attr,
                .bit_count = _bits,                                     \
                .label = _label,                                        \
                .set_state = _controlfunc,                              \
-       }
+       }         
 
 #define IIO_SCAN_EL_C(_name, _number, _bits, _label, _controlfunc)     \
        __IIO_SCAN_EL_C(_name, _number, _bits, _label, _controlfunc)
@@ -279,6 +279,15 @@ ssize_t iio_scan_el_ts_show(struct device *dev, struct device_attribute *attr,
                                   iio_scan_el_ts_store),       \
        }
 
+/**
+ * IIO_CONST_ATTR_SCAN_EL_TYPE - attr to specify the data format of a scan el
+ * @name: the scan el name (may be more general and cover a set of scan elements
+ * @_sign: either s or u for signed or unsigned
+ * @_bits: number of actual bits occuplied by the value
+ * @_storagebits: number of bits _bits is padded to when read out of buffer
+ **/
+#define IIO_CONST_ATTR_SCAN_EL_TYPE(_name, _sign, _bits, _storagebits) \
+       IIO_CONST_ATTR(_name##_type, #_sign#_bits"/"#_storagebits);
 /*
  * These are mainly provided to allow for a change of implementation if a device
  * has a large number of scan elements