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- Function blocked if files or directories are open on the volume. All files and directories must be closed prior to formatting the volume.
For any file system driver, if p_fs_cfg is a pointer to NULL, then the default configuration will be selected. If non-NULL, the argument should be passed a pointer to the appropriate configuration structure. For the FAT file system driver, p_fs_cfg should be passed a pointer to a FS_FAT_SYS_CFG.