[gutsy] network-manager should set wlan to "essid off channel 0" if it disabled

Binary package hint: network-manager

Short version:
If you disable "Wireles Network" with network-manager
it seems to set:
    iwconfig eth1 essid on

powertop report that ipw2200 have about 29 wps.

but should:
    iwconfig eth1 essid off channel 0
this will put ipw2200 to powersave mode and reduce wakeups count to 0.

Long version:

After Ubutnu init=1. Network-manager is not started. ipw2200 enabled but don't use any power.

eth1 unassociated ESSID:off/any
          Mode:Managed Channel=0 Access Point: Not-Associated
          Bit Rate:0 kb/s Tx-Power=20 dBm Sensitivity=8/0
          Retry limit:7 RTS thr:off Fragment thr:off
          Encryption key:off
          Power Management:off
          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
------------------------------------------------------------------------------------------
Ubuntu init=2. User is not logged. n-m set:
iwconfig eth1 essid on
i think it is OK

eth1 unassociated ESSID:""
          Mode:Managed Channel=0 Access Point: Not-Associated
          Bit Rate:0 kb/s Tx-Power=20 dBm Sensitivity=8/0
          Retry limit:7 RTS thr:off Fragment thr:off
          Encryption key:off
          Power Management:off
          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
------------------------------------------------------------------------------------------
After AP was connected.
Every think is OK.

eth1 IEEE 802.11g ESSID:"bla"
          Mode:Managed Frequency:2.457 GHz Access Point: 55:55:55:55:55:55
          Bit Rate:54 Mb/s Tx-Power=20 dBm Sensitivity=8/0
          Retry limit:7 RTS thr:off Fragment thr:off
          Encryption key:bla-bla-bla Security mode:open
          Power Management:off
          Link Quality=78/100 Signal level=-51 dBm Noise level=-91 dBm
          Rx invalid nwid:0 Rx invalid crypt:8 Rx invalid frag:0
          Tx excessive retries:0 Invalid misc:0 Missed beacon:0

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
After n-m "Wireles Network" was disabled
it seems to set:
    iwconfig eth1 essid on
but should:
    iwconfig eth1 essid off channel 0
this will put ipw2200 to powersave mode

eth1 unassociated ESSID:""
          Mode:Managed Frequency=2.457 GHz Access Point: Not-Associated
          Bit Rate:0 kb/s Tx-Power=20 dBm Sensitivity=8/0
          Retry limit:7 RTS thr:off Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality:0 Signal level:0 Noise level:0
          Rx invalid nwid:0 Rx invalid crypt:8 Rx invalid frag:0
          Tx excessive retries:0 Invalid misc:0 Missed beacon:0