+-o GFX0@20000  <class IORegistryEntry, id 0x100000250, retain 20>
  | {
  |   "acpi-device" = "IOACPIPlatformDevice is not serializable"
  |   "acpi-path" = "IOACPIPlane:/_SB/PCI0@0/GFX0@20000"
  | }
  | 
  +-o DD01@100  <class IORegistryEntry, id 0x100000251, retain 4>
  +-o DD02@2  <class IORegistryEntry, id 0x100000252, retain 4>
  +-o DD03@300  <class IORegistryEntry, id 0x100000253, retain 4>
  +-o DD04@301  <class IORegistryEntry, id 0x100000254, retain 4>
  +-o DD05@302  <class IORegistryEntry, id 0x100000255, retain 4>
  +-o DD06@303  <class IORegistryEntry, id 0x100000256, retain 4>
  +-o DD07@304  <class IORegistryEntry, id 0x100000257, retain 4>
  +-o DD08@305  <class IORegistryEntry, id 0x100000258, retain 4>
  +-o DD09@9  <class IORegistryEntry, id 0x100000259, retain 4>
  +-o DD0A@a  <class IORegistryEntry, id 0x10000025a, retain 4>
  +-o DD0B@b  <class IORegistryEntry, id 0x10000025b, retain 4>
  +-o DD0C@c  <class IORegistryEntry, id 0x10000025c, retain 4>
  +-o DD0D@d  <class IORegistryEntry, id 0x10000025d, retain 4>
  +-o DD0E@e  <class IORegistryEntry, id 0x10000025e, retain 4>
  +-o DD0F@f  <class IORegistryEntry, id 0x10000025f, retain 4>
  +-o DD1F@400  <class IORegistryEntry, id 0x100000260, retain 4>