[ltp] reduce bus master activity from madwifi ? (e.g. T41p and other with athereos chipset)

[Nils]

Hi,

does anybody know a possibility to reduce the bus master activity during using 
the madwifi driver ? In state C2 I need much more power as in state C4.
Can I reject multicast or broadcast packets ? Or can I increase/change the 
latency of the madwifi driver. 99% of the time I need only a slow network and 
I want to save battery power.

tail /proc/acpi/processor/CPU/power

active state:            C2
max_cstate:              C8
bus master activity:     00000140
states:
    C1:                  type[C1] promotion[C2] demotion[--] latency[001] 
usage[00000010]
   *C2:                  type[C2] promotion[C3] demotion[C1] latency[001] 
usage[02575587]
    C3:                  type[C3] promotion[C4] demotion[C2] latency[085] 
usage[00174171]
    C4:                  type[C3] promotion[--] demotion[C3] latency[185] 
usage[00806775]

Thanks
Nils