Unfortunately for me, adding the new firmware into /lib/firmware/zd1211
does *not* fix the problem.  While the firmware now appears to load, the
device does not work.

dmesg reveals:

[ 1610.150975] usb 3-1: new high speed USB device using ehci_hcd and address 9
[ 1610.284741] usb 3-1: configuration #1 chosen from 1 choice
[ 1610.457980] zd1211rw 3-1:1.0: firmware version 4605
[ 1610.499986] zd1211rw 3-1:1.0: zd1211 chip 07b8:6001 v4330 high 00-12-0e 
AL2230_RF pa0 g--
[ 1610.502590] zd1211rw 3-1:1.0: eth1
[ 1611.049867] ADDRCONF(NETDEV_UP): eth2: link is not ready


$ /sbin/iwconfig 
eth2      802.11g zd1211  ESSID:off/any  
          Mode:Managed  Frequency:2.412 GHz  Access Point: Invalid   
          Bit Rate:1 Mb/s   
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0


$ /sbin/ifconfig 
eth2      Link encap:Ethernet  HWaddr 00:12:0E:10:17:8C  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)


$ sudo dhclient eth2
Internet Systems Consortium DHCP Client V3.0.4
Copyright 2004-2006 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

Listening on LPF/eth2/00:12:0e:10:17:8c
Sending on   LPF/eth2/00:12:0e:10:17:8c
Sending on   Socket/fallback
DHCPDISCOVER on eth2 to 255.255.255.255 port 67 interval 8
DHCPDISCOVER on eth2 to 255.255.255.255 port 67 interval 15
DHCPDISCOVER on eth2 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on eth2 to 255.255.255.255 port 67 interval 17
DHCPDISCOVER on eth2 to 255.255.255.255 port 67 interval 14
No DHCPOFFERS received.
No working leases in persistent database - sleeping.


Finally, running dmesg after uplugging the device:
[ 1913.571759] usb 3-1: USB disconnect, address 9
[ 1913.575589] zd1211rw 3-1:1.0: error ioread32(CR_REG1): -22

-- 
zd1211 no longer working (missing firmware?)
https://launchpad.net/bugs/58259

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