edupv

Are you using the default schedutil governor ? I am using my PC2 started from 170215 build, the behavior of schedutil governor was strange. It ramp up to 1296MHz when idle, but it went down to 480MHz under light load (e.g. apt-get update). Sometimes, after some loading, it became more normal - More 480MHz and less 1296MHz. Then, I changed the governor to ondemand. ondemand is "lazy" by default, and needs tuning to make it responsive : echo 25 > /sys/devices/system/cpu/cpufreq/ondemand/up_threshold echo 50880 > /sys/devices/system/cpu/cpufreq/ondemand/sampling_rate I am happy with the ondemand governor and have not tried schedutil again.

@praveenbm5 : 1. Load module twice : already done it according to your guide. 2. As long as I change the "wifi-device" and "option device" to 'wlan0' (I used 'radio0' before), scanning works in Luci, no matter what the "option path" is. 3. AP is not working, wireless client is not working too.

Thanks for your information. Here is my lsusb -t output : root@pizero:~# lsusb -t /: Bus 08.Port 1: Dev 1, Class=root_hub, Driver=sunxi-ohci/1p, 12M /: Bus 07.Port 1: Dev 1, Class=root_hub, Driver=sunxi-ohci/1p, 12M /: Bus 06.Port 1: Dev 1, Class=root_hub, Driver=sunxi-ohci/1p, 12M /: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=sunxi-ohci/1p, 12M /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=sunxi-ehci/1p, 480M /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=sunxi-ehci/1p, 480M /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=sunxi-ehci/1p, 480M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=sunxi-ehci/1p, 480M After checking a few openwrt routers' /etc/config/wireless, I think the "option path" is one of the subdirectory under /sys/devices, so I tried : option type 'mac80211' option path "platform/xradio_pm.0" # also tried "platform/wifi_pm.0" I also copied /lib/netifd/wireless/mac80211.sh from another other router (due to the error message from "wifi" command). With all the mentioned steps, wifi is still not working, and the operating frequency, mode, band, channel, width are not displayed in the Luci wifi config page. It seems that openwrt cannot read such information from the Wifi device.

I created a /etc/config/wireless file manually, then reboot. After that the "Wifi" menu item appeared under the "Network" menu. I also installed wpa-supplicant & hostapd (according to the hints in the wifi config page), but wifi is still not working.

I have a BananaPi M1+ running pure-ftpd, it was fine when using Armbian 5.14, but I have a problem after upgraded to Armbian 5.20. Here is the output of the filezilla client : If I disable the firewall by clearing all the iptables rules, filezilla can connect to pure-ftpd without problem.