No WiFi on Acer Aspire One 751h

[Dave Mischler]

> Can you please compile up athstats (/usr/src/tools/tools/ath/athstats)
> and make sure your kernel has the following options:
> 
> options ATH_DEBUG
> options AH_DEBUG
> options ATH_DIAGAPI
> 
> Then run scan for a while and use athstats to see what (if any) is
> being received.

As soon as I configured the interface I started getting this in the log.
I assume that this means that an expected interrupt is not happening.
Remember, the PCI mapping wasn't getting configured under 8.2; could
something else the BIOS normally configures also be missing?

Feb 16 14:12:54 halfpint kernel: wlan0: Ethernet address:
00:24:2c:5d:ed:55
Feb 16 14:13:06 halfpint kernel: ar5212StopDmaReceive: dma failed to
stop in 10ms
Feb 16 14:13:06 halfpint kernel: AR_CR=0x00000024
Feb 16 14:13:06 halfpint kernel: AR_DIAG_SW=0x00000020
Feb 16 14:13:06 halfpint kernel: ar5212StopDmaReceive: dma failed to
stop in 10ms
Feb 16 14:13:06 halfpint kernel: AR_CR=0x00000024
Feb 16 14:13:06 halfpint kernel: AR_DIAG_SW=0x00000020
Feb 16 14:13:07 halfpint kernel: ar5212StopDmaReceive: dma failed to
stop in 10ms
Feb 16 14:13:07 halfpint kernel: AR_CR=0x00000024
Feb 16 14:13:07 halfpint kernel: AR_DIAG_SW=0x00000020