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This creates GPIO tools under tools/gpio/* and adds a single example program to list the GPIOs on a system. When proper devices are created it provides this minimal output: Cc: Johan Hovold <johan@kernel.org> Cc: Michael Welling <mwelling@ieee.org> Cc: Markus Pargmann <mpa@pengutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
26 lines
706 B
C
26 lines
706 B
C
/*
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* GPIO tools - utility helpers library for the GPIO tools
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*
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* Copyright (C) 2015 Linus Walleij
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*
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* Portions copied from iio_utils and lssio:
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* Copyright (c) 2010 Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
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* Copyright (c) 2008 Jonathan Cameron
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* *
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*/
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#ifndef _GPIO_UTILS_H_
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#define _GPIO_UTILS_H_
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#include <string.h>
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static inline int check_prefix(const char *str, const char *prefix)
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{
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return strlen(str) > strlen(prefix) &&
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strncmp(str, prefix, strlen(prefix)) == 0;
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}
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#endif /* _GPIO_UTILS_H_ */
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