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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.
36 lines
762 B
C
36 lines
762 B
C
/*
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* Copyright (C) 2016 Freie Universität Berlin
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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_saul
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* @{
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*
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* @file
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* @brief SAUL fallback functions
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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 <errno.h>
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#include "saul.h"
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int saul_write_notsup(const void *dev, const phydat_t *dat)
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{
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(void)dev;
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(void)dat;
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return -ENOTSUP;
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}
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/* No need to consume ROM for a second implementation, just create an
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* alias symbol to saul_write_notsup */
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__attribute__((alias("saul_write_notsup")))
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int saul_read_notsup(const void *dev, phydat_t *dat);
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