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-rw-r--r--tools/iio/iio_utils.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/tools/iio/iio_utils.c b/tools/iio/iio_utils.c
index dfee1a3f3f63..ec9ab7f9ae4c 100644
--- a/tools/iio/iio_utils.c
+++ b/tools/iio/iio_utils.c
@@ -634,7 +634,8 @@ error_close_dir:
return ret;
}
-static int _write_sysfs_int(char *filename, char *basedir, int val, int verify)
+static int _write_sysfs_int(const char *filename, const char *basedir, int val,
+ int verify)
{
int ret = 0;
FILE *sysfsfp;
@@ -707,7 +708,7 @@ error_free:
*
* Returns a value >= 0 on success, otherwise a negative error code.
**/
-int write_sysfs_int(char *filename, char *basedir, int val)
+int write_sysfs_int(const char *filename, const char *basedir, int val)
{
return _write_sysfs_int(filename, basedir, val, 0);
}
@@ -721,13 +722,14 @@ int write_sysfs_int(char *filename, char *basedir, int val)
*
* Returns a value >= 0 on success, otherwise a negative error code.
**/
-int write_sysfs_int_and_verify(char *filename, char *basedir, int val)
+int write_sysfs_int_and_verify(const char *filename, const char *basedir,
+ int val)
{
return _write_sysfs_int(filename, basedir, val, 1);
}
-static int _write_sysfs_string(char *filename, char *basedir, char *val,
- int verify)
+static int _write_sysfs_string(const char *filename, const char *basedir,
+ const char *val, int verify)
{
int ret = 0;
FILE *sysfsfp;
@@ -805,7 +807,8 @@ error_free:
*
* Returns a value >= 0 on success, otherwise a negative error code.
**/
-int write_sysfs_string_and_verify(char *filename, char *basedir, char *val)
+int write_sysfs_string_and_verify(const char *filename, const char *basedir,
+ const char *val)
{
return _write_sysfs_string(filename, basedir, val, 1);
}
@@ -818,7 +821,8 @@ int write_sysfs_string_and_verify(char *filename, char *basedir, char *val)
*
* Returns a value >= 0 on success, otherwise a negative error code.
**/
-int write_sysfs_string(char *filename, char *basedir, char *val)
+int write_sysfs_string(const char *filename, const char *basedir,
+ const char *val)
{
return _write_sysfs_string(filename, basedir, val, 0);
}
@@ -831,7 +835,7 @@ int write_sysfs_string(char *filename, char *basedir, char *val)
* Returns the read integer value >= 0 on success, otherwise a negative error
* code.
**/
-int read_sysfs_posint(char *filename, char *basedir)
+int read_sysfs_posint(const char *filename, const char *basedir)
{
int ret;
FILE *sysfsfp;
@@ -875,7 +879,7 @@ error_free:
*
* Returns a value >= 0 on success, otherwise a negative error code.
**/
-int read_sysfs_float(char *filename, char *basedir, float *val)
+int read_sysfs_float(const char *filename, const char *basedir, float *val)
{
int ret = 0;
FILE *sysfsfp;