On Fri, 2010-10-15 at 15:30 -0700, Galen wrote: > Can anybody give me an idea the extent and complexity of adding > support for 5/10 MHz channels in mac80211? > > Several different radios (including those supported by ath5k and > ath9k) have the hardware capability to operate at 5 MHz. Obviously, > support in those drivers is a separate issue, but it is my > understanding that mac80211 must first support 5/10 MHz channels. Since we already have channel types, I've always suggested to add 5/10 as such. The complexity comes from the fact that some channel types are incompatible, and we currently do not have to handle that -- a regular scan for example will cover all current channel types, but with 5/10 MHz you need to do special scans etc. Also, you need to start in cfg80211, not mac80211, and make everything from auth/assoc/connect/ibss-join etc. aware of channel types as well as center freq. 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
