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16f859dafd
This makes life easier when calling e.g. `saul_reg_write()` with data stored in flash. As now the signatures for reading and writing differ (in that `const` qualifier only), `saul_notsup()` is split into `saul_write_notsup()` and `saul_read_notsup()`. However, one is implemented as a symbol alias of the other, so that ROM consumption remains unchanged.
52 lines
1.0 KiB
C
52 lines
1.0 KiB
C
/*
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* Copyright (C) 2016 Eistec AB
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup drivers_lis3dh
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* @{
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*
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* @file
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* @brief LIS3DH adaption to the RIOT actuator/sensor interface
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*
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* @author Joakim Nohlgård <joakim.nohlgard@eistec.se>
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*
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* @}
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*/
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#include <string.h>
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#include <stdio.h>
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#include "saul.h"
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#include "lis3dh.h"
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static int read_acc(const void *dev, phydat_t *res)
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{
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lis3dh_data_t xyz;
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int err = lis3dh_read_xyz((const lis3dh_t *)dev, &xyz);
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if (err != 0) {
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/* Something went wrong in the LIS3DH driver */
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return -ECANCELED;
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}
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res->val[0] = xyz.acc_x;
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res->val[1] = xyz.acc_y;
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res->val[2] = xyz.acc_z;
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/* unit: milli-G */
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res->scale = -3;
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res->unit = UNIT_G;
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return 3;
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}
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const saul_driver_t lis3dh_saul_driver = {
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.read = read_acc,
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.write = saul_write_notsup,
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.type = SAUL_SENSE_ACCEL,
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};
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