FindInEA(
  IN  PFILE_FULL_EA_INFORMATION    start,
  IN  PCHAR                        wanted
  );

Routine Description:

    This function check for the "Wanted" string in the Ea structure and
    returns a pointer to the extended attribute structure
    representing the given extended attribute name.

Arguments:

    device - ptr to device object for target device
    pIrp    - ptr to I/O request packet

Return Value:

    pointer to the extended attribute structure, or NULL if not found.