jonas@jonas-Visionbook-14Wr-Plus:~$ lsmod | grep 8723bu jonas@jonas-Visionbook-14Wr-Plus:~$ sudo modprobe 8723bu [sudo] jonas jelszava: modprobe: ERROR: could not insert '8723bu': Exec format error jonas@jonas-Visionbook-14Wr-Plus:~$ sudo modinfo 8723bu filename: /lib/modules/5.15.0-58-generic/kernel/drivers/net/wireless/8723bu.ko version: v4.3.6.11_12942.20141204_BTCOEX20140507-4E40 author: Realtek Semiconductor Corp. description: Realtek Wireless Lan Driver license: GPL srcversion: E503D6BFCA3F30554C0034F alias: usb:v7392pA611d*dc*dsc*dp*icFFiscFFipFFin* alias: usb:v0BDApB720d*dc*dsc*dp*icFFiscFFipFFin* depends: cfg80211 retpoline: Y name: 8723bu vermagic: 4.15.0-30-generic SMP mod_unload parm: rtw_ips_mode:The default IPS mode (int) parm: rtw_usb_rxagg_mode:int parm: rtw_btcoex_enable:Enable BT co-existence mechanism (int) parm: rtw_ant_num:Antenna number setting (int) parm: rtw_qos_opt_enable:int parm: ifname:The default name to allocate for first interface (charp) parm: if2name:The default name to allocate for second interface (charp) parm: rtw_initmac:charp parm: rtw_channel_plan:int parm: rtw_special_rf_path:int parm: rtw_chip_version:int parm: rtw_rfintfs:int parm: rtw_lbkmode:int parm: rtw_network_mode:int parm: rtw_channel:int parm: rtw_mp_mode:int parm: rtw_wmm_enable:int parm: rtw_vrtl_carrier_sense:int parm: rtw_vcs_type:int parm: rtw_busy_thresh:int parm: rtw_ht_enable:int parm: rtw_bw_mode:int parm: rtw_ampdu_enable:int parm: rtw_rx_stbc:int parm: rtw_ampdu_amsdu:int parm: rtw_lowrate_two_xmit:int parm: rtw_rf_config:int parm: rtw_power_mgnt:int parm: rtw_smart_ps:int parm: rtw_low_power:int parm: rtw_wifi_spec:int parm: rtw_antdiv_cfg:int parm: rtw_antdiv_type:int parm: rtw_enusbss:int parm: rtw_hwpdn_mode:int parm: rtw_hwpwrp_detect:int parm: rtw_hw_wps_pbc:int parm: rtw_max_roaming_times:The max roaming times to try (uint) parm: rtw_mc2u_disable:int parm: rtw_80211d:Enable 802.11d mechanism (int) parm: rtw_notch_filter:0:Disable, 1:Enable, 2:Enable only for P2P (uint) parm: rtw_hiq_filter:0:allow all, 1:allow special, 2:deny all (uint) parm: rtw_adaptivity_en:0:disable, 1:enable, 2:auto (uint) parm: rtw_adaptivity_mode:0:normal, 1:carrier sense (uint) parm: rtw_tx_pwr_lmt_enable:0:Disable, 1:Enable, 2: Depend on efuse (int) parm: rtw_tx_pwr_by_rate:0:Disable, 1:Enable, 2: Depend on efuse (int) parm: rtw_phy_file_path:The path of phy parameter (charp) parm: rtw_load_phy_file:PHY File Bit Map (int) parm: rtw_decrypt_phy_file:Enable Decrypt PHY File (int) jonas@jonas-Visionbook-14Wr-Plus:~$