You should be able to check the media type of the interface. I'm running on a Lombard series powerbook right now, so I can't say hat the airport card returns, but with my wirelessdriver equivalent for pccards (and, very shortly, USB devices), I at least list the various possible media types that apply and will be reporting the correct entry in a future version (lower on the list of priorities): mediumTable[] = { { kIOMediumIEEE80211None, 0 }, { kIOMediumIEEE80211Manual, 0 }, { kIOMediumIEEE80211Auto, 0 }, { kIOMediumIEEE80211DS1 | kIOMediumOptionHalfDuplex, 1 }, { kIOMediumIEEE80211DS1 | kIOMediumOptionFullDuplex, 1 }, { kIOMediumIEEE80211DS2 | kIOMediumOptionHalfDuplex, 2 }, { kIOMediumIEEE80211DS2 | kIOMediumOptionFullDuplex, 2 }, { kIOMediumIEEE80211DS5 | kIOMediumOptionHalfDuplex, 5 }, { kIOMediumIEEE80211DS5 | kIOMediumOptionFullDuplex, 5 }, { kIOMediumIEEE80211DS11 | kIOMediumOptionHalfDuplex, 11 }, { kIOMediumIEEE80211DS11 | kIOMediumOptionFullDuplex, 11 }, }; These don't match exactly with what ifconfig returns, but the labels are close enough. I think ifconfig returns strings like: DS11, Auto, Manual, etc. I'm sure somebody out there will tell me if the airport cards obey this convention as well. -Rob McKeever robm@mac.com Oy! The BSD/ifnet mechanisms don't currently give you that kind of detail. You'd have to get that from IOKit, and I don't know whether there is any standard way of representing wireless devices that IOKit knows about (Dean/Godfrey?). This is what 'ioreg' shows for Airport: | | | +-o radio@30000 <class AppleMacIODevice> | | | | +-o AirPortDriver <class AirPortDriver> | | | | +-o IOEthernetInterface <class IOEthernetInterface> | | | | | +-o IONetworkStack <class IONetworkStack> | | | | | +-o IONetworkStackUserClient <class IONetworkStackUserClient> | | | | +-o AirPortUserClient <class AirPortUserClient> | | | | +-o AirPortUserClient <class AirPortUserClient> 'airport' isn't going to work; and I don't know whether all wireless devices show up as 'radio'. What are you trying to do? Regards, Justin On Thursday, January 24, 2002, at 09:29 AM, Brian Wotring wrote: In my NKE, is there a way to obtain information about the network interfaces, specifically, which ones are wireless cards? -- Brian Wotring ( brian@shmoo.com ) PGP KeyID: 0x9674763D