linux-stable/include/linux/platform_data/invensense_mpu6050.h
Gregor Boirie eb3798463f iio:imu:mpu6050: enhance mounting matrix support
Add a new rotation matrix sysfs attribute compliant with IIO core
mounting matrix API.
Matrix is retrieved from "in_anglvel_mount_matrix" and
"in_accel_mount_matrix" sysfs attributes. It is declared into mpu6050 DTS
entry as a "mount-matrix" property.

Old interface is kept for backward userspace compatibility and may be
retrieved from legacy platform_data mechanism only.

Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-04-23 22:16:01 +01:00

34 lines
1.2 KiB
C

/*
* Copyright (C) 2012 Invensense, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef __INV_MPU6050_PLATFORM_H_
#define __INV_MPU6050_PLATFORM_H_
/**
* struct inv_mpu6050_platform_data - Platform data for the mpu driver
* @orientation: Orientation matrix of the chip (deprecated in favor of
* mounting matrix retrieved from device-tree)
*
* Contains platform specific information on how to configure the MPU6050 to
* work on this platform. The orientation matricies are 3x3 rotation matricies
* that are applied to the data to rotate from the mounting orientation to the
* platform orientation. The values must be one of 0, 1, or -1 and each row and
* column should have exactly 1 non-zero value.
*
* Deprecated in favor of mounting matrix retrieved from device-tree.
*/
struct inv_mpu6050_platform_data {
__s8 orientation[9];
};
#endif