On Thu, Feb 05, 2009 at 05:45:22PM +0100, Arnau Roig wrote: > Hello to everybody. > > I'm new in kernel development and in wireless networking also. > I've read most of the documentation availible in wireless.kernel.org > and, to be honest it's still not clear to me what are the uses of the > mac80211, cfg80211 or nl80211. mac80211 implements the higher level MAC layer function of the ieee802.11 specification for wireless local area networking. cfg80211 provides the back-end of a configuration API for wireless LAN devices -- it is intended to supercede the Wireless Extensions API at the device layer. nl80211 is a front-end to cfg80211 that is based on netlink sockets. This provides a user-level API for wireless configuration. > I'm using a 2.6.24 kernel, compat-wireless-2.6-old (compat-release > v4.5-g2badec7) and ath5k driver (v0.5.0). > > What I want to do is a userspace application that has to modify the > frequency channel and the tx_power of the wireless device depending on > several network statistics. Please, where do I have to start looking? > > Is the struct ieee80211_conf, declared in mac80211.h what I need for > changing the current working channel and tx_power? > Can I read network statistics with get_station, declared in the struct > cfg80211_ops in cfg80211.h? Or the way to do it is using > @NL80211_CMD_GET_WIPHY in nl80211_commands? You may want to take a look at the sources for the iw utility. This should illustrate how to drive the nl80211 API. > Thank you for your time. Hth! John -- John W. Linville Someday the world will need a hero, and you linville@xxxxxxxxxxxxx might be all we have. Be ready. -- 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
