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Release 4.14 tools/gpio/gpio-utils.h

Directory: tools/gpio
 * GPIO tools - utility helpers library for the GPIO tools
 * Copyright (C) 2015 Linus Walleij
 * Portions copied from iio_utils and lssio:
 * Copyright (c) 2010 Manuel Stahl <>
 * Copyright (c) 2008 Jonathan Cameron
 * *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
#ifndef _GPIO_UTILS_H_

#define _GPIO_UTILS_H_

#include <string.h>

#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))

static inline int check_prefix(const char *str, const char *prefix) { return strlen(str) > strlen(prefix) && strncmp(str, prefix, strlen(prefix)) == 0; }


Linus Walleij42100.00%1100.00%

int gpiotools_request_linehandle(const char *device_name, unsigned int *lines, unsigned int nlines, unsigned int flag, struct gpiohandle_data *data, const char *consumer_label); int gpiotools_set_values(const int fd, struct gpiohandle_data *data); int gpiotools_get_values(const int fd, struct gpiohandle_data *data); int gpiotools_release_linehandle(const int fd); int gpiotools_get(const char *device_name, unsigned int line); int gpiotools_gets(const char *device_name, unsigned int *lines, unsigned int nlines, struct gpiohandle_data *data); int gpiotools_set(const char *device_name, unsigned int line, unsigned int value); int gpiotools_sets(const char *device_name, unsigned int *lines, unsigned int nlines, struct gpiohandle_data *data); #endif /* _GPIO_UTILS_H_ */

Overall Contributors

Bamvor Jian Zhang14269.61%133.33%
Linus Walleij6230.39%266.67%
Directory: tools/gpio
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