Using fwprintf

Hi!

I am using 2-byte wide char strings in my application. Strings should be written and read from file (in flash FS). When using fwprintf(), i got in file only one byte per character, like converting UTF-8 to plain ASCII.

Here's my simple example:

int write_setup(DEVICE *bt_s)
{

    FILE *fout;

    fout = fopen (INI_FILE,"w");
    if (fout != NULL)
    {
                fwprintf (fout, L"NAME=%ls\n", bt_s->name);
        fclose (fout);
                return 0;
    }
        else return -1;
}

When I call this function, the bt_s->name points to memory with following contents:

0x54 0x00 0x65 0x00 0x73 0x00 0x74 0x00
or in ascii:
T<0>e<0>s<0>t<0>

when I check the file contents (with file hex editor), the ontents is plain ascii, one byte per character:
0x54 0x65 0x73 0x74, which is "Test"

Is this compiler related issue on using wide characters? What is proper use on file-wirting (and reading) wchar_t strings ?

Thanks!

Marko