MFC aac.c 1.137:

MFC aac.c 1.137:
  Calling RequestSupplementAdapterInfo before RequestAdapterInfo appears
  to trip a bug causing the latter to return a zeroed struct
  aac_adapter_info.  This causes two issues.  One is cosmetic only --
  a verbose boot prints information about the controller, and shows all
  zero:

  aac0: Unknown processor 0MHz, 0MB memory (0MB cache, 0MB execution),
    unknown battery platform

  The second problem is that the firmware version information is stored
  away for aac_rev_check, for userland tools (like aaccli) to query via
  the FSACTL_MINIPORT_REV_CHECK and FSACTL_LNX_MINIPORT_REV_CHECK ioctls.
  When aaccli encounters this issue it prints

  Command Error: <The current AFAAPI.DLL is too old to work with the
    current controller software.>

  Move the RequestSupplementAdapterInfo call after RequestAdapterInfo,
  which seems to fix both problems.