Comment # 18 on bug 900273 from Jon Nelson

The only enabled items are:

EHC1      S3    *enabled   pci:0000:00:1d.0
EHC2      S3    *enabled   pci:0000:00:1a.0

which are:

00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family
USB Enhanced Host Controller #1 (rev 05) (prog-if 20 [EHCI])
and
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family
USB Enhanced Host Controller #2 (rev 05) (prog-if 20 [EHCI])


and

LID0      S3    *enabled   platform:PNP0C0D:00
SLPB      S3    *enabled   platform:PNP0C0E:00

which, according to - http://www.thinkwiki.org/wiki/Talk:How_to_make_ACPI_work
- is the LID (obvious) and SLPB (the function key??)

I'll keep poking around.