#ifndef _IIO_UTILS_H_
#define _IIO_UTILS_H_

/* IIO - useful set of util functionality
 *
 * 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.
 */

#include <stdint.h>

/* Made up value to limit allocation sizes */
#define IIO_MAX_NAME_LENGTH 30

#define FORMAT_SCAN_ELEMENTS_DIR "%s/scan_elements"
#define FORMAT_TYPE_FILE "%s_type"

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

extern const char *iio_dir;

/**
 * struct iio_channel_info - information about a given channel
 * @name: channel name
 * @generic_name: general name for channel type
 * @scale: scale factor to be applied for conversion to si units
 * @offset: offset to be applied for conversion to si units
 * @index: the channel index in the buffer output
 * @bytes: number of bytes occupied in buffer output
 * @bits_used: number of valid bits of data
 * @shift: amount of bits to shift right data before applying bit mask
 * @mask: a bit mask for the raw output
 * @be: flag if data is big endian
 * @is_signed: is the raw value stored signed
 * @location: data offset for this channel inside the buffer (in bytes)
 **/
struct iio_channel_info {
	char *name;
	char *generic_name;
	float scale;
	float offset;
	unsigned index;
	unsigned bytes;
	unsigned bits_used;
	unsigned shift;
	uint64_t mask;
	unsigned be;
	unsigned is_signed;
	unsigned location;
};

static inline int iioutils_check_suffix(const char *str, const char *suffix)
{
	return strlen(str) >= strlen(suffix) &&
		strncmp(str+strlen(str)-strlen(suffix),
			suffix, strlen(suffix)) == 0;
}

int iioutils_break_up_name(const char *full_name, char **generic_name);
int iioutils_get_type(unsigned *is_signed, unsigned *bytes, unsigned *bits_used,
		      unsigned *shift, uint64_t *mask, unsigned *be,
		      const char *device_dir, const char *name,
		      const char *generic_name);
int iioutils_get_param_float(float *output, const char *param_name,
			     const char *device_dir, const char *name,
			     const char *generic_name);
void bsort_channel_array_by_index(struct iio_channel_info *ci_array, int cnt);
int build_channel_array(const char *device_dir,
			struct iio_channel_info **ci_array, int *counter);
int find_type_by_name(const char *name, const char *type);
int write_sysfs_int(const char *filename, const char *basedir, int val);
int write_sysfs_int_and_verify(const char *filename, const char *basedir,
			       int val);
int write_sysfs_string_and_verify(const char *filename, const char *basedir,
				  const char *val);
int write_sysfs_string(const char *filename, const char *basedir,
		       const char *val);
int read_sysfs_posint(const char *filename, const char *basedir);
int read_sysfs_float(const char *filename, const char *basedir, float *val);
int read_sysfs_string(const char *filename, const char *basedir, char *str);

#endif /* _IIO_UTILS_H_ */
14de06a333783d6812cf3c4998f78b0c8'>root</a>/<a href='/cgit.cgi/linux/net-next.git/diff/include?id=69973b830859bc6529a7a0468ba0d80ee5117826&amp;id2=2e4333c14de06a333783d6812cf3c4998f78b0c8'>include</a>/<a href='/cgit.cgi/linux/net-next.git/diff/include/trace?id=69973b830859bc6529a7a0468ba0d80ee5117826&amp;id2=2e4333c14de06a333783d6812cf3c4998f78b0c8'>trace</a>/<a href='/cgit.cgi/linux/net-next.git/diff/include/trace/events?id=69973b830859bc6529a7a0468ba0d80ee5117826&amp;id2=2e4333c14de06a333783d6812cf3c4998f78b0c8'>events</a>/<a href='/cgit.cgi/linux/net-next.git/diff/include/trace/events/gpio.h?id=69973b830859bc6529a7a0468ba0d80ee5117826&amp;id2=2e4333c14de06a333783d6812cf3c4998f78b0c8'>gpio.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='69973b830859bc6529a7a0468ba0d80ee5117826'/><input type='hidden' name='id2' value='2e4333c14de06a333783d6812cf3c4998f78b0c8'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=69973b830859bc6529a7a0468ba0d80ee5117826&amp;id2=2e4333c14de06a333783d6812cf3c4998f78b0c8'>Diffstat</a> (limited to 'include/trace/events/gpio.h')</div><table summary='diffstat' class='diffstat'>