$ cat /proc/acpi/wakeup
Device	S-state	  Status   Sysfs node
PS2K	  S3	*disabled
PS2M	  S3	*disabled
RP01	  S4	*disabled  pci:0000:00:1c.0
PXSX	  S4	*disabled
RP02	  S4	*disabled
PXSX	  S4	*disabled
RP03	  S4	*disabled
PXSX	  S4	*disabled
RP04	  S4	*disabled  pci:0000:00:1c.3
PXSX	  S4	*disabled  pci:0000:02:00.0
RP05	  S4	*disabled
PXSX	  S4	*disabled
RP06	  S4	*disabled
PXSX	  S4	*disabled
RP07	  S4	*disabled
PXSX	  S4	*disabled
RP08	  S4	*disabled
PXSX	  S4	*disabled
GLAN	  S4	*enabled   pci:0000:00:19.0
EHC1	  S4	*enabled   pci:0000:00:1d.0
EHC2	  S4	*disabled
XHC	  S4	*enabled   pci:0000:00:14.0
HDEF	  S4	*disabled  pci:0000:00:1b.0
TPD4	  S4	*disabled
TPD7	  S0	*disabled
TPD8	  S0	*disabled
PEG0	  S4	*disabled
PEGP	  S4	*disabled
PWRB	  S3	*enabled   platform:PNP0C0C:00