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Commit 9d475254 authored by Hartmut Knaack's avatar Hartmut Knaack Committed by Jonathan Cameron
Browse files

tools:iio:iio_utils: pass strings as const 



Mark strings, which are not supposed to be changed (basedir, filename,
value), as const in function parameters.

Signed-off-by: default avatarHartmut Knaack <knaack.h@gmx.de>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent e06e3d71

tools/iio/iio_utils.c

+13 −9
Original line number Diff line number Diff line
@@ -634,7 +634,8 @@ int find_type_by_name(const char *name, const char *type) 
	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 @@ static int _write_sysfs_int(char *filename, char *basedir, int val, int verify) 
 *

 * 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 @@ static int _write_sysfs_string(char *filename, char *basedir, char *val, 
 *

 * 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 @@ int read_sysfs_posint(char *filename, char *basedir) 
 *

 * 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;

tools/iio/iio_utils.h

+9 −6
Original line number Diff line number Diff line
@@ -63,12 +63,15 @@ 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(char *filename, char *basedir, int val);

int write_sysfs_int_and_verify(char *filename, char *basedir, int val);

int write_sysfs_string_and_verify(char *filename, char *basedir, char *val);

int write_sysfs_string(char *filename, char *basedir, char *val);

int read_sysfs_posint(char *filename, char *basedir);

int read_sysfs_float(char *filename, char *basedir, float *val);

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_ */