root@raspberrypi:~# hostapd -d /etc/hostapd/hostapd.conf random: Trying to read entropy from /dev/random Configuration file: /etc/hostapd/hostapd.conf nl80211: Driver does not support authentication/association or connect commands nl80211: Remove monitor interface: refcount=0 netlink: Operstate: ifindex=3 linkmode=0 (kernel-control), operstate=6 (IF_OPER_UP) nl80211: Set mode ifindex 3 iftype 2 (STATION) nl80211: Failed to set interface 3 to mode 2: -19 (No such device) nl80211 driver initialization failed. hostapd_interface_deinit_free(0x54dc19f0) hostapd_interface_deinit_free: num_bss=1 conf->num_bss=1 hostapd_interface_deinit(0x54dc19f0) hostapd_bss_deinit: deinit bss wlan0 hostapd_cleanup(hapd=0x54dc25f8 (wlan0)) hostapd_free_hapd_data: Interface wlan0 wasn't started hostapd_interface_deinit_free: driver=(nil) drv_priv=(nil) -> hapd_deinit hostapd_interface_free(0x54dc19f0) hostapd_interface_free: free hapd 0x54dc25f8 hostapd_cleanup_iface(0x54dc19f0) hostapd_cleanup_iface_partial(0x54dc19f0) hostapd_cleanup_iface: free iface=0x54dc19f0