On Tue, 2012-07-10 at 12:31 -0700, Ben Greear wrote: > On 07/10/2012 12:22 PM, Johannes Berg wrote: > > On Tue, 2012-07-10 at 12:19 -0700, Ben Greear wrote: > >> On 07/10/2012 12:08 PM, Johannes Berg wrote: > >>> On Tue, 2012-07-10 at 12:02 -0700, Ben Greear wrote: > >>>> Is there a way to open a netlink socket and have it receive > >>>> all scan results (even those requested by other applications)? > >>> > >>> What do you mean by scan results? The results themselves? No, they are a > >>> dump and unicast to one application. The fact that a scan finished? Yes, > >>> of course. > >> > >> I'd like the results themselves..for instance, just piggyback on whatever > >> supplicant is already doing to get periodic updates, and of course I'd > >> end up requesting some scans myself from time to time if a user wanted > >> an immediate update. > >> > >> I was hoping it could be something like just listening for network-device > >> and route updates like netlink already supports. > >> > >> Since scanning is relatively slow and expensive, it seems like a good > >> idea to allow re-using the results... > > > > Well, umm.. you can just request the results? A la "iw wlan0 scan dump"? > > So, you could listen for the 'scan-complete' netlink message, and then > when you receive it, immediately go ask for a 'scan dump' for that interface, > and immediately get the last scan results? Yes. > Aside from a small race (what if something else did something to invalidate > those scan results), that sounds like it might be good enough to me. There's not much that anything could do to do that. johannes -- 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
