Copyright © 2013 IBASE Technology Inc. All Rights Reserved.
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IBASE Technology Inc.
ret = adt_dummy;
close(file);
return ret;
}
/* Remove trailing spaces from a string
Return the new string length including the trailing NUL */
static int rtrim(char *s)
{
int i;
for (i = strlen(s) - 1; i >= 0 && (s[i] == ' ' || s[i] == '\n'); i--)
s[i] = '\0';
return i + 2;
}
void free_adapters(struct i2c_adap *adapters)
{
int i;
for (i = 0; adapters[i].name; i++)
free(adapters[i].name);
free(adapters);
}
/* We allocate space for the adapters in bunches. The last item is a
terminator, so here we start with room for 7 adapters, which should
be enough in most cases. If not, we allocate more later as needed. */
#define BUNCH 8
/* n must match the size of adapters at calling time */
static struct i2c_adap *more_adapters(struct i2c_adap *adapters, int n)
{
struct i2c_adap *new_adapters;
new_adapters = realloc(adapters, (n + BUNCH) * sizeof(struct i2c_adap));
if (!new_adapters) {
free_adapters(adapters);
return NULL;
}
memset(new_ad n, 0, BUNCH * sizeof(struct i2c_adap));
return new_adapters;
}
struct i2c_adap *gather_i2c_busses(void)
{
char s[120];
struct dirent *de, *dde;
DIR *dir, *ddir;
FILE *f;
char fstype[NAME_MAX], sysfs[NAME_MAX], n[NAME_MAX];
int foundsysfs = 0;
int count=0;
struct i2c_adap *adapters;
adapters = calloc(BUNCH, sizeof(struct i2c_adap));
if (!adapters)
return NULL;
/* look in /proc/bus/i2c */
if ((f = fopen("/proc/bus/i2c", "r"))) {
while (fgets(s, 120, f)) {
char *algo, *name, *type, *all;
int len_algo, len_name, len_type;
int i2cbus;
algo = strrchr(s, '\t');
*(algo++) = '\0';
