Thank you Rosen For the country this is what the logs are saying wlan1: interface state UNINITIALIZED->COUNTRY_UPDATE Previous country code US, new country code US nl80211: Regulatory information - country=US (DFS-FCC) nl80211: 2402-2472 @ 40 MHz 30 mBm nl80211: 5170-5250 @ 80 MHz 23 mBm nl80211: 5250-5330 @ 80 MHz 23 mBm (DFS) nl80211: 5490-5730 @ 160 MHz 23 mBm (DFS) nl80211: 5735-5835 @ 80 MHz 30 mBm nl80211: 57240-63720 @ 2160 MHz 40 mBm nl80211: Added 802.11b mode based on 802.11g information Le sam. 10 nov. 2018 à 20:01, Rosen Penev <rosenp@xxxxxxxxx> a écrit : > > On Sat, Nov 10, 2018 at 12:44 PM Brice Dubost <bd@xxxxxxxxxxxxx> wrote: > > > > Hello, > > > > I am looking into making an AP that can use DFS frequencies (for VoIP > > to avoid spectrum congestion) with an USB adapter on a raspberry pi > > > > So far we have tried to use an atheros based dongle: > > Linksys Max-Stream AC600 Dual-Band MU-MIMO USB Adapter (WUSB6100M) > > Unfortunately the ath10k-usb driver is still very experimental and we > > were not able to get the dongle to work > > > > We also looked to another dongle > > ID 148f:5572 Ralink Technology, Corp. RT5572 Wireless Adapter > > iw list says it supports the frequencies with radar detection. > > The startup of hostapd says the same > > > > Allowed channel: mode=2 chan=60 freq=5300 MHz max_tx_power=23 dBm (DFS > > state = usable) > > > > > > Unfortunately when I start it in AP mode on the channel 60, I get a > > ressource busy answer when the nl driver send the radar scan message. > > It happens in the function static int nl80211_start_radar_detection of > > src/drivers/driver_nl80211.c > > I tried both with the stock version of raspbian and a fresh pull from Git > > > > These are the logs I am getting. > > =============== > > DFS support is enabled > > Completing interface initialization > > Mode: IEEE 802.11a Channel: 60 Frequency: 5300 MHz > > DFS 1 channels required radar detection > > DFS all channels available, (SKIP CAC): no > > DFS 0 chans unavailable - choose other channel: no > > wlan1: interface state COUNTRY_UPDATE->DFS > > DFS start CAC on 5300 MHz > > wlan1: DFS-CAC-START freq=5300 chan=60 sec_chan=0, width=0, seg0=0, > > seg1=0, cac_time=60s > > nl80211: Start radar detection (CAC) 5300 MHz (ht_enabled=1, > > vht_enabled=0, bandwidth=20 MHz, cf1=5300 MHz, cf2=0 MHz) > > * freq=5300 > > * vht_enabled=0 > > * ht_enabled=1 > > * sec_channel_offset=0 > > * channel_type=1 > > nl80211: Failed to start radar detection: -16 (Device or resource busy) > > DFS start_dfs_cac() failed, -1 > > Interface initialization failed > > wlan1: interface state DFS->DISABLED > > wlan1: AP-DISABLED > > wlan1: Unable to setup interface. > > hostapd_interface_deinit_free(0x13fd8d0) > > hostapd_interface_deinit_free: num_bss=1 conf->num_bss=1 > > hostapd_interface_deinit(0x13fd8d0) > > wlan1: interface state DISABLED->DISABLED > > hostapd_bss_deinit: deinit bss wlan1 > > wlan1: Deauthenticate all stations > > ================== > > > > I am ready to help doing further debugging or tests, but I don't know > > where to start. > > > > Do you have suggestions on making DFS work with non ath chipsets ? > Maybe the country is not set correctly. > > As far as non ath chipsets go, Mediatek also has several USB devices. > > > > > > Thank you > > > > -- > > Brice Dubost > > > > _______________________________________________ > > Hostap mailing list > > Hostap@xxxxxxxxxxxxxxxxxxx > > http://lists.infradead.org/mailman/listinfo/hostap _______________________________________________ Hostap mailing list Hostap@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/hostap
