On Fri, Jan 22, 2016 at 10:53:24AM +0100, Alexandre Epert wrote: > I think my hostapd.conf file is in accordance with my dongle's specs but when I try to launche hostapd I've got an error : > > Completing interface initialization > Mode: IEEE 802.11a Channel: 36 Frequency: 5180 MHz > DFS 0 channels required radar detection > Could not set channel for kernel driver > ### hostapd configuration file > hw_mode=a > channel=36 > ieee80211ac=1 > vht_oper_chwidth=0 That would imply that you are trying to configure this to use a 40 MHz channel. Is that on purpose? Or was this supposed to be vht_oper_chwidth=1 for a 80 MHz VHT channel? > vht_oper_centr_freq_seg0_idx=42 42 would be the centered frequency center channel number for 36 primary channel only if this were a 80 MHz channel, so the combination here is invalid. You would either need to change this to use vht_oper_chwidth=1 or set vht_oper_centr_freq_seg0_idx=0 if you want to use a 40 MHz channel. -- Jouni Malinen PGP id EFC895FA _______________________________________________ Hostap mailing list Hostap@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/hostap
