On 10/05/10 14:00, Michael Hennerich wrote: > > Signed-off-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx> Acked-by: Jonathan Cameron <jic23@xxxxxxxxx> Send it to Greg with the first user... Also need to update the documentation in sysfs-bus-iio to cover this, but that can be a separate patch. Jonathan > --- > drivers/staging/iio/ring_generic.h | 17 +++++++++++++++++ > 1 files changed, 17 insertions(+), 0 deletions(-) > > diff --git a/drivers/staging/iio/ring_generic.h b/drivers/staging/iio/ring_generic.h > index abd52ea..728aa41 100644 > --- a/drivers/staging/iio/ring_generic.h > +++ b/drivers/staging/iio/ring_generic.h > @@ -292,6 +292,23 @@ ssize_t iio_scan_el_ts_show(struct device *dev, struct device_attribute *attr, > **/ > #define IIO_CONST_ATTR_SCAN_EL_TYPE(_name, _sign, _bits, _storagebits) \ > IIO_CONST_ATTR(_name##_type, #_sign#_bits"/"#_storagebits); > + > +/** > + * IIO_CONST_ATTR_SCAN_EL_TYPE_WITH_SHIFT - 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 > + * @_shiftbits: number of bits _shiftbits the result must be shifted > + **/ > +#define IIO_CONST_ATTR_SCAN_EL_TYPE_WITH_SHIFT(_name, _sign, _bits, \ > + _storagebits, _shiftbits) \ > + IIO_CONST_ATTR(_name##_type, #_sign#_bits"/"#_storagebits \ > + ">>"#_shiftbits); > + > +#define IIO_SCAN_EL_TYPE_SIGNED 's' > +#define IIO_SCAN_EL_TYPE_UNSIGNED 'u' > + > /* > * These are mainly provided to allow for a change of implementation if a device > * has a large number of scan elements -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
