I noticed that from kernel 2.6.37 on (i've tested 2.6.38-rc2, too) ath9k
prevents my CPU (Intel Atom N450) from entering the C4 power state. It
only goes down to C2 (there's no C3) instead. In 2.6.36(.3) everything
is still fine. The CPU will only go down to C4 with 2.6.37 when the
wireless interface is brought down.
used wireless device:
05:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless
Network Adapter (PCI-Express) (rev 01)
--
Regards,
Richard Schütz
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html