FRESULT f_setlabel (
  const TCHAR* label  /* [IN] Volume label to be set */
);

Description

When the string has a drive prefix, the volume label will be set to the volume specified by the drive prefix. Unix style volume ID cannot be used to specify the volume. If drive number is not specified, the volume label will be set to the default drive. If length of the given volume label is zero, the volume label on the volume will be removed. The format of the volume label is as shown below:

• Up to 11 bytes long as conversion of OEM code page at FAT volume.
• Up to 11 characters long at exFAT volume.
• Allowable characters for FAT volume are: characters allowed for SFN excludes dot. Low-case characters are up converted.
• Allowable characters for exFAT volume are: characters allowed for LFN includes dot. Low-case characters are preserved.
• Spaces can be embedded anywhere in the volume label. Trailing spaces are truncated off at FAT volume.

Remark: The standard system (Windows) has a problem at the volume label with a heading \xE5 on the FAT volume. To avoid this problem, this function rejects such volume label as invalid name.

    /* Set volume label to the default drive */
    f_setlabel("DATA DISK");

    /* Set volume label to the drive 2 */
    f_setlabel("2:DISK 3 OF 4");

    /* Remove volume label of the drive 2 */
    f_setlabel("2:");