On Thursday 02 April 2009, Johannes Berg wrote: > On Thu, 2009-04-02 at 08:52 +0300, Kalle Valo wrote: > > > I really would like to have some frame ack callback to mac80211, even > > not all drivers support that. Otherwise we cannot reliably go to power > > save because the AP might not receive our nullfunc frame. I have to > > think about this and I'll try to propose something later on. > > I suppose we could well assume that we do get TX status for those > devices that do support power save -- which devices would that affect? rt2500usb and rt73usb don't provide a valid TX status but do support power save at he moment. I have to add that I'm in contact with somebody who is looking into supporting Ack-based TX status reporting in mac80211 which could cure this problem. I have directed him to the linux-wireless list so he will probably soon send his ideas to the list. In any case, for now we can assume rt2500usb and rt73usb to be a problem. Ivo -- 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