Comment 1 for bug 286861

Same problem here with a Compaq Presario 773EL notebook with an Atheros AR5007 card:

$ uname -a
Linux new-host 2.6.27-7-generic #1 SMP Tue Nov 4 19:33:06 UTC 2008 x86_64 GNU/Linux

$ lspci -v
[...]
01:00.0 Ethernet controller: Atheros Communications Inc. AR242x 802.11abg Wireless PCI Express Adapter (rev 01)
        Subsystem: Hewlett-Packard Company Device 137b
        Flags: bus master, fast devsel, latency 0, IRQ 16
        Memory at d1300000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: <access denied>
        Kernel modules: ath5k

output of dmesg:

[ 21.751751] ath5k_pci 0000:01:00.0: enabling device (0000 -> 0002)
[ 21.751762] ath5k_pci 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 21.751782] ath5k_pci 0000:01:00.0: setting latency timer to 64
[ 21.751817] ath5k_pci 0000:01:00.0: registered as 'phy0'
[ 21.761870] ath5k phy0: failed to wakeup the MAC Chip
[ 21.761907] ath5k_pci 0000:01:00.0: PCI INT A disabled
[ 21.780421] ath5k_pci: probe of 0000:01:00.0 failed with error -5

iwconfig returns no wireless device.