Intel Extensible Firmware Interface - Manual (Page 394)

Extensible Firmware Interface Specification
11-34 12/01/02 Version 1.10
Parameters
Size Size of the EFI_FILE_INFO structure, including the Null-
terminated Unicode FileName string.
FileSize The size of the file in bytes.
PhysicalSize The amount of physical space the file consumes on the file
system volume.
CreateTime The time the file was created.
LastAccessTime The time when the file was last accessed.
ModificationTime The time when the file’s contents were last modified.
Attribute The attribute bits for the file. See “Related Definitions” above.
FileName The Null-terminated Unicode name of the file.
Description
The EFI_FILE_INFO data structure supports GetInfo() and SetInfo() requests. In the
case of SetInfo() , the following additional rules apply:
• On directories, the file size is determined by the contents of the directory and cannot be
changed by setting FileSize . On directories, FileSize is ignored during a SetInfo() .
• The
PhysicalSize is determined by the FileSize and cannot be changed. This value
is ignored during a SetInfo() request.
• The
EFI_FILE_DIRECTORY attribute bit cannot be changed. It must match the file’s
actual type.
• A value of zero in
CreateTime , LastAccess , or ModificationTime causes the fields
to be ignored (and not updated).