On Thu, May 12, 2011 at 07:02:23PM +0200, Jorge Miguel wrote: > I am trying to set power save mode in my Intel 3945ABG wireless card > under Ubuntu 10.10 - Maverick Meerkat and iwl3945 driver. > > I need to set power save mode. In order to do so I tried to change > period and timeout options of iwconfig command so that beacon period > and ATIM window are changed. > > For instance > :~$ sudo iwconfig wlan0 power period 2 > Error for wireless request "Set Power Management" (8B2C): > SET failed on device wlan0 ; Invalid argument. > > As you can see I get an error. Is it because it is not supported in my > card? Is there any way to set beacon interval and ATIM window > parameters? This should work until you do this in managed mode, power save is only a infrastructure network feature. Particularly this will not work on IBSS network (ad-hoc mode). Also in kernel 2.6.39, after driver split into iwlegacy, power save is marked as not supported by driver. I wonder it was deliberate action from Intel developers, or just IEEE80211_HW_SUPPORTS_PS is missed by mistake. I'm going to look at this. Stanislaw -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
