Commit 6a36e618 authored Sep 21, 2010 by Jonathan Cameron Committed by Greg Kroah-Hartman Sep 21, 2010

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



Also, adds a macro to make defining such attributes simple.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

parent cf2b4488

drivers/staging/iio/accel/lis3l02dq_ring.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -84,13 +84,17 @@ static IIO_SCAN_EL_C(accel_y, 1, IIO_SIGNED(16),
		static IIO_SCAN_EL_C(accel_z, 2, IIO_SIGNED(16),
		LIS3L02DQ_REG_OUT_Z_L_ADDR,
		&lis3l02dq_scan_el_set_state);
		static IIO_CONST_ATTR_SCAN_EL_TYPE(accel, s, 12, 16);
		static IIO_SCAN_EL_TIMESTAMP(3);
		static IIO_CONST_ATTR_SCAN_EL_TYPE(timestamp, s, 64, 64);

		static struct attribute *lis3l02dq_scan_el_attrs[] = {
		&iio_scan_el_accel_x.dev_attr.attr,
		&iio_scan_el_accel_y.dev_attr.attr,
		&iio_scan_el_accel_z.dev_attr.attr,
		&iio_const_attr_accel_type.dev_attr.attr,
		&iio_scan_el_timestamp.dev_attr.attr,
		&iio_const_attr_timestamp_type.dev_attr.attr,
		NULL,
		};

drivers/staging/iio/ring_generic.h

+10 −1

Original line number	Diff line number	Diff line
		@@ -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