c27af72052
NXP i.MX7ULP EVK boards all sensors connect with M4 core, A core has to conmunicate with sensors by virtual io bus like rpmsg bus. The driver implement the virtual sensor input driver to configure sensors active/idle/delay actions and report the sensors' event to user space. Supply below sysfs for user to enable/disable detector and counter, set poll delay: /sys/class/misc/step_counter/enable /sys/class/misc/step_detector/enable /sys/class/misc/step_counter/poll_delay Reviewed-by: Elven Wang <elven.wang@nxp.com> Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
47 lines
1001 B
C
47 lines
1001 B
C
/*
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* Copyright (C) 2015 Freescale Semiconductor, Inc.
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* Copyright (C) 2017 NXP.
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*/
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/*
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* The code contained herein is licensed under the GNU Lesser General
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* Public License. You may obtain a copy of the GNU Lesser General
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* Public License Version 2.1 or later at the following locations:
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*
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* http://www.opensource.org/licenses/lgpl-license.html
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* http://www.gnu.org/copyleft/lgpl.html
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*/
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/*
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* @file linux/imx_rpmsg.h
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*
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* @brief Global header file for imx RPMSG
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*
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* @ingroup RPMSG
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*/
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#ifndef __LINUX_IMX_RPMSG_H__
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#define __LINUX_IMX_RPMSG_H__
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/* Category define */
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#define IMX_RMPSG_LIFECYCLE 1
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#define IMX_RPMSG_PMIC 2
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#define IMX_RPMSG_AUDIO 3
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#define IMX_RPMSG_KEY 4
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#define IMX_RPMSG_GPIO 5
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#define IMX_RPMSG_RTC 6
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#define IMX_RPMSG_SENSOR 7
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/* rpmsg version */
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#define IMX_RMPSG_MAJOR 1
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#define IMX_RMPSG_MINOR 0
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struct imx_rpmsg_head {
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u8 cate;
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u8 major;
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u8 minor;
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u8 type;
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u8 cmd;
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u8 reserved[5];
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} __attribute__ ((packed));
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#endif /* __LINUX_IMX_RPMSG_H__ */
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