On Mon, Mar 1, 2010 at 10:27 AM, Helmut Schaa <helmut.schaa@xxxxxxxxxxxxxx> wrote: > Am Montag 01 März 2010 schrieb Luis R. Rodriguez: >> On Mon, Mar 1, 2010 at 9:46 AM, reinette chatre >> <reinette.chatre@xxxxxxxxx> wrote: >> > On Sun, 2010-02-28 at 06:34 -0800, Helmut Schaa wrote: >> >> have there been any recent changes to the regulatory stuff, especially >> >> in conjunction with iwlagn? >> >> >> >> Because with wireless-testing I get all 11a channels disabled by default >> >> and the same for channels 12 & 13 in the g-band. >> > >> > This could be related to a change in the default regulatory domain. It >> > used to be US, but now it is world, >> >> This change actually happened a while ago and the world regulatory >> domain actually enables passive scanning on a lot of channels instead >> of straight out disabling them. > > How do channels get disabled then? In this order: * if the Intel card has an EEPROM where certain channels are disabled * if you set the country yourself * if your AP tells you that you are in a country where certain channels are disabled >> > which is more restrictive. You can >> > modify your regulatory domain using "iw reg set <domain>" >> >> For Intel, as well as with Atheros cards, cards using 'iw reg set' >> would actually not yield enabling new channels, it would only disable >> channels further. > > Right, that's what I can see here as well. > > However, I just noticed in dmesg: > > iwlagn 0000:10:00.0: Tunable channels: 13 802.11bg, 19 802.11a channels > > So it seems the card reports the correct set of channels but it doesn't > get reflected in cfg80211. You can try to register to nl80211 events after loading cfg80211: iw event -t Then load iwlagn and see if you pick anything up. Might want to enable CFG80211_REG_DEBUG. 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
