diff options
| -rw-r--r-- | drivers/staging/iio/Documentation/iio_utils.h | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/drivers/staging/iio/Documentation/iio_utils.h b/drivers/staging/iio/Documentation/iio_utils.h index 74d31247337..d24006aedd5 100644 --- a/drivers/staging/iio/Documentation/iio_utils.h +++ b/drivers/staging/iio/Documentation/iio_utils.h @@ -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 |