On 27 June 2016 at 10:58, Gaurang Ramesh Naik <[email protected]> wrote: > Hi All, > > I have some difficulty in understanding how HT40, HT40- and HT40+ > modes work. My objective is to set a particular 20 MHz channel as the > primary channel when channel bonding is enabled. From what I > understand, HT40- means secondary channel is below the primary, while > HT40+ means secondary channel is above the primary channel. I am > particularly dealing with channels 149, 153, 157 and 161.
http://securityuncorked.com/wordpress/wp-content/uploads/2013/11/graphic-80211-acChannels-all.png > When I set the channel to say 157, whether I use HT40+ or HT40-, the > primary channel is always set to channel 161. I am inferring this > because when I scan using iwlist scan, my SSID shows on Channel 161. > Does ath10k not set the primary and secondary channel in this manner? ath10k doesn't care. hostapd can do a channel swap if it detects OBSS. Not sure how much OpenWRT scripts mingle in (I'm guessing you're using `uci`, hence the mention). > If not, is there a mechanism by which I can explicitly mention which > channel must be primary, and which must be secondary? You can't. OBSS can still end up swapping your primary and extension channels. > Also, how is the > primary channel decided for VHT80 mode? VHT80 is backward compat for HT40 and HT20 clients. See the channel allocation link above. Michał _______________________________________________ ath10k mailing list [email protected] http://lists.infradead.org/mailman/listinfo/ath10k
