configuration problems on hostap driver

[Levy-kesos Odelia-BOL016]

I have a problem configuring D-Link DWL520 card with hostap 

1) fragmentation patameter does not change:
 
 			# iwconfig wlan0 frag fixed
 			# iwconfig wlan0
 			wlan0   IEEE 802.11-b  ESSID:"test"  Nickname:"red1"
 			          Mode:Master  Frequency:2.422GHz  Access Point: 00:05:5D:FA:16:35  
> 			          Bit Rate:11Mb/s   Tx-Power=-13 dBm   Sensitivity=1/3  
> 			          Retry limit:15   RTS thr=200 B   Fragment thr:off
> 			          
> 			# iwconfig wlan0 frag 512
> 			# iwconfig wlan0
> 			wlan0     IEEE 802.11-b  ESSID:"test"  Nickname:"red1"
> 			          Mode:Master  Frequency:2.422GHz  Access Point: 00:05:5D:FA:16:35  
> 			          Bit Rate:11Mb/s   Tx-Power=-13 dBm   Sensitivity=1/3  
> 			          Retry limit:15   RTS thr=200 B   Fragment thr:off
> 			          
 2) does the card supports power timeout and period at the same time?
				    I know that most cards don't...

3) Setting of power management timeout - the value being displayed is different from the      value that was set (is there a limit of some sort?)
> 
> 			# iwconfig wlan0 power timeout 300u
> 			# iwconfig wlan0                   
> 			wlan0     IEEE 802.11-b  ESSID:"test"  Nickname:"red1"
> 			          Mode:Master  Frequency:2.422GHz  Access Point: 00:05:5D:FA:16:35  
> 			          Bit Rate:11Mb/s   Tx-Power=-13 dBm   Sensitivity=1/3  
> 			          Retry limit:15   RTS thr=200 B   Fragment thr:off
> 			          Encryption key:7474-5655-56   Encryption mode:restricted
> 			          Power Management period:31.5638s  mode:All packets received
> 			          Link Quality:0  Signal level:0  Noise level:0
> 			          Rx invalid nwid:0  Rx invalid crypt:2516012  Rx invalid frag:0
> 			          Tx excessive retries:18659  Invalid misc:24604   Missed beacon:0
> 
> 			3) Similarly power management period: (It shows a different value)
> 
> 			# iwconfig wlan0 power period 100s 
> 			# iwconfig wlan0                   
> 			wlan0     IEEE 802.11-b  ESSID:"test"  Nickname:"red1"
> 			          Mode:Master  Frequency:2.422GHz  Access Point: 00:05:5D:FA:16:35  
> 			          Bit Rate:11Mb/s   Tx-Power=-13 dBm   Sensitivity=1/3  
> 			          Retry limit:15   RTS thr=200 B   Fragment thr:off
> 			          Encryption key:7474-5655-56   Encryption mode:restricted
> 			          Power Management period:32.8909s  mode:All packets received
> 			          Link Quality:0  Signal level:0  Noise level:0
> 			          Rx invalid nwid:0  Rx invalid crypt:2516335  Rx invalid frag:0
> 			          Tx excessive retries:18663  Invalid misc:24605   Missed beacon:0
> 
	Thanks in advance, 
	Regards,
	Odelia Levy-Kesos.