staging:iio: Documentation, update iio_utils.h for the move to a bus
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
parent
82020b0ef1
commit
eaf86ff939
1 changed files with 30 additions and 1 deletions
|
@ -47,7 +47,7 @@ inline char *find_ring_subelement(const char *directory, const char *subelement)
|
|||
|
||||
char *find_type_by_name(const char *name, const char *type)
|
||||
{
|
||||
const char *iio_dir = "/sys/class/iio/";
|
||||
const char *iio_dir = "/sys/bus/iio/devices/";
|
||||
const struct dirent *ent;
|
||||
int cnt, pos, pos2;
|
||||
|
||||
|
@ -112,6 +112,35 @@ int write_sysfs_int(char *filename, char *basedir, int val)
|
|||
return 0;
|
||||
}
|
||||
|
||||
int write_sysfs_int_and_verify(char *filename, char *basedir, int val)
|
||||
{
|
||||
int ret;
|
||||
FILE *sysfsfp;
|
||||
char temp[100];
|
||||
int test;
|
||||
|
||||
sprintf(temp, "%s%s", basedir, filename);
|
||||
sysfsfp = fopen(temp, "w");
|
||||
if (sysfsfp == NULL)
|
||||
return -1;
|
||||
fprintf(sysfsfp, "%d", val);
|
||||
fclose(sysfsfp);
|
||||
|
||||
sysfsfp = fopen(temp, "r");
|
||||
if (sysfsfp == NULL)
|
||||
return -1;
|
||||
fscanf(sysfsfp, "%d", &test);
|
||||
if (test != val) {
|
||||
printf("Possible failure in int write %d to %s%s\n",
|
||||
val,
|
||||
basedir,
|
||||
filename);
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* write_sysfs_string_and_verify() - string write, readback and verify
|
||||
* @filename: name of file to write to
|
||||
|
|
Reference in a new issue