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3c287c058d
Previously, `UNIT_G` was used for g-force with the correct symbol `g`, `UNIT_GR` for gram (as in kilogram) with the incorrect symbol `G` (which would be correct for Gauss), and `UNIT_GS` for Gauss with symbol `Gs` (which is an uncommon but correct symbol). To avoid confusion between G-Force, Gauss, and Gram the units have been renamed to `UNIT_G_FORCE`, `UNIT_GRAM`, and `UNIT_GAUSS`. In addition, gram now uses the correct symbol `g` and Gauss uses `G`.
42 lines
894 B
C
42 lines
894 B
C
/*
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* Copyright (C) 2019 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser General
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* Public License v2.1. See the file LICENSE in the top level directory for more
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* details.
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*/
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/**
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* @ingroup drivers_qmc5883l
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* @{
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*
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* @file
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* @brief SAUL mapping for the QMC5883L sensor driver
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*
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* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
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*
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* @}
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*/
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#include <string.h>
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#include "saul.h"
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#include "qmc5883l.h"
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static int read(const void *dev, phydat_t *res)
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{
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int ret = qmc5883l_read((const qmc5883l_t *)dev, res->val);
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if ((ret == QMC5883L_OK) || (ret == QMC5883L_OVERFLOW)) {
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res->unit = UNIT_GAUSS;
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res->scale = -3;
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return 3;
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}
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return -ECANCELED;
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}
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const saul_driver_t qmc5883l_saul_driver = {
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.read = read,
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.write = saul_write_notsup,
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.type = SAUL_SENSE_MAG,
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};
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