"Ville Nuorvala" <ville.nuorvala@xxxxxxxxx> writes: > On Mon, Dec 29, 2008 at 6:29 PM, Johannes Berg > <johannes@xxxxxxxxxxxxxxxx> wrote: >> On Mon, 2008-12-29 at 18:25 +0200, Ville Nuorvala wrote: >>> The IWSPY ioctls and netlink events were supported in the old ieee80211 >>> stack. This patch adds them to mac80211. >> >> missing very long explanation as to why this is needed > > Hello Johannes, > > to my knowledge it is currently the only way to get a realtime > indication that the wireless link quality has changed, please correct > me if I'm wrong. Last fall there was a discussion about roaming in mac80211: http://markmail.org/message/ml4bjiyd6a26he6x So we are working on support for quality events, just a bit slowly :/ > Such a feature can be used as an early indication that the link is > going down, and may help prepare a vertical IP layer handover to for > example 3G or just another WLAN interface. I didn't even think about vertical handovers, thanks for pointing it out. I will keep this in mind. >> As far as I can tell, nobody uses iwspy support or could possibly want >> it the way it is done. > > The IOCTL interface is horrible, but it's already there and there is a > tool that supports it; iwspy. > > I'm not bringing any new functionality to the wireless stack, I'm just > reintroducing a feature that got lost when the wireless stack was > changed. I'm with Johannes here, let's forget iwspy and do it properly with nl80211. -- Kalle Valo -- 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
