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-rw-r--r--src/helper/fileio.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/helper/fileio.h b/src/helper/fileio.h
index 1dfff51e..41f3a788 100644
--- a/src/helper/fileio.h
+++ b/src/helper/fileio.h
@@ -62,12 +62,12 @@ typedef struct fileio_s
FILE *file;
} fileio_t;
-extern int fileio_write(fileio_t *fileio, u32 size, u8 *buffer, u32 *size_written);
+extern int fileio_write(fileio_t *fileio, u32 size, const u8 *buffer, u32 *size_written);
extern int fileio_read(fileio_t *fileio, u32 size, u8 *buffer, u32 *size_read);
extern int fileio_fgets(fileio_t *fileio, u32 size, char *buffer);
extern int fileio_seek(fileio_t *fileio, u32 position);
extern int fileio_close(fileio_t *fileio);
-extern int fileio_open(fileio_t *fileio, char *url, enum fileio_access access, enum fileio_type type);
+extern int fileio_open(fileio_t *fileio, const char *url, enum fileio_access access, enum fileio_type type);
extern int fileio_read_u32(fileio_t *fileio, u32 *data);
extern int fileio_write_u32(fileio_t *fileio, u32 data);