W dniu 20 stycznia 2010 11:18 użytkownik Johannes Berg <johannes@xxxxxxxxxxxxxxxx> napisał: > On Wed, 2010-01-20 at 01:06 +0100, Rafał Miłecki wrote: >> + phy->use_40mhz = conf_is_ht(conf); > > This is wrong, conf_is_ht might also be 20mhz, look at the other > helpers. I tried to understand what actually is HT and after reading many articles I have more knowledge but still I'm not 100% sure. AFAIU: 1) HT means using more than 1 stream in channel (and can be on any: 20MHz or 40MHz) 2) conf_is_ht(...) checks if mac80211 want us to use more than 1 stream in channel 3) conf_is_ht40_minus(...) checks if we should use frequency below current as additional 20MHz, so for example for channel 7 which is 2,431->2,453 we should use additinal 20MHz in channel 3 which is 2,411->2,433 4) conf_is_ht40_plus(...) checks if we should use frequency over current as additional 20MHz, so for example for channel 3 which is 2,411->2,433 we should use additinal 20MHz in channel 7 which is 2,431->2,453 Is that correct? -- Rafał -- 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
