On Sun, Mar 15, 2009 at 10:59 AM, Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote: > On Sun, 2009-03-15 at 09:22 +0200, Kalle Valo wrote: >> "Luis R. Rodriguez" <lrodriguez@xxxxxxxxxxx> writes: >> >> > Last we reviewed this it seemed we were set on only allowing this for >> > hardware which supports beacon filtering with support for checksumming >> > of the beacons. Reason checksumming is important is for considerations >> > of DFS with the channel switch announcements, HT with with channel width >> > changes. In fact I'm curious why checksumming would be required for 2.4 GHz >> > single band devices. Kalle, do you happen to know? >> >> In my opinion also 2.4 GHz band needs checksum support. At least ERP >> protection changes come to my mind, but maybe there are also others. > > Also, the virtual hardware support Jouni is working on might use quiet > elements, and these would have to be detected by the stations. We really > want beacon change detection somewhere. > >> I think this is future stuff, I would like to get the basic (and the >> simplest) implementation to the tree first and then we can start >> improving and extending it. > > Agreed, anything that is more complex than this basic stuff which > requires proper beacon change watching by the firmware is too much for > the first cut here -- we're having enough trouble as-is, for example > with the BSS struct stuff. Understood, can we just add some text to the doc then elaborating what is expected of the hardware for now. Luis -- 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
