Device	S-state	  Status   Sysfs node
LID	  S3	*disabled
SLPB	  S3	*disabled
UART	  S3	*disabled  pnp:00:09
EXP0	  S4	*disabled  pci:0000:00:1c.0
EXP1	  S4	*disabled
EXP2	  S4	*disabled  pci:0000:00:1c.2
EXP3	  S4	*disabled
PCI1	  S4	*disabled  pci:0000:00:1e.0
USB0	  S3	*enabled   pci:0000:00:1d.0
USB1	  S3	*enabled   pci:0000:00:1d.1
USB3	  S3	*enabled   pci:0000:00:1d.3
USB7	  S3	*enabled   pci:0000:00:1d.7
AC9M	  S4	*disabled