downstairs:~ # dmesg|tail
eth1: authenticated
eth1: associate with AP 00:18:39:5b:1d:00
eth1: TX AssocReq (capab=0x401 gen_ie_len=0x0)
eth1: RX AssocResp (capab=0x401 aid=1 status=0 Success)
eth1: associated
eth1: LinkOn
eth1: LinkOff
eth1: LinkOn
ACPI: Power Button (FF) [PWRF]
ACPI: Sleep Button (CM) [SPBT]
Looks like only the last two are important.