Re: nmcli problems

["George N. White III" <gnwiii@xxxxxxxxx>]

On Tue, Feb 21, 2023 at 12:56 PM Bill C <bill.cu1234@xxxxxxxxx> wrote:

This thing is an antenna that plugs into the USB port

It also includes a radio.  These units may need to load vendor firmware for

use, and do require a specific driver, which may come from the vendor or

some open-source project.  If you post details of your device someone

may be able to tell you how to use it with current Fedora. 

Use "lsusb"to find the device name and bus location.  For example (showing only the wifi device):

Bus 001 Device 017: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter

Also run `lshw --wlan`.  The entry for the above device is:

22: USB 00.0: 0282 WLAN controller
  [Created at usb.122]
  Unique ID: i1H1.x9IMWGGtcg8
  Parent ID: cLrx.8T3QcmdDop7
  SysFS ID: /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.3/1-2.3:1.0
  SysFS BusID: 1-2.3:1.0
  Hardware Class: network
  Model: "Realtek RTL8188CUS 802.11n WLAN Adapter"
  Hotplug: USB
  Vendor: usb 0x0bda "Realtek Semiconductor Corp."
  Device: usb 0x8176 "RTL8188CUS 802.11n WLAN Adapter"
  Revision: "2.00"
  Serial ID: "00e04c000001"
  Driver: "rtl8192cu"
  Driver Modules: "rtl8192cu"
  Device File: wlp0s20u2u3
  Features: WLAN

  Speed: 12 Mbps

  HW Address: aa:fe:01:c4:37:fa
  Permanent HW Address: 8c:ae:4c:f8:01:56
  Link detected: no
  WLAN channels: 1 2 3 4 5 6 7 8 9 10 11
  WLAN frequencies: 2.412 2.417 2.422 2.427 2.432 2.437 2.442 2.447 2.452 2.457 2.462
  WLAN encryption modes: WEP40 WEP104 TKIP CCMP
  WLAN authentication modes: open sharedkey wpa-psk wpa-eap
  Module Alias: "usb:v0BDAp8176d0200dc00dsc00dp00icFFiscFFipFFin00"
  Driver Info #0:
    Driver Status: rtl8192cu is active
    Driver Activation Cmd: "modprobe rtl8192cu"
  Driver Info #1:
    Driver Status: rtl8xxxu is active
    Driver Activation Cmd: "modprobe rtl8xxxu"
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #21 (Hub)

Look for the "Link detected" and "Driver" entries.  Run `ls mod | grep <driver_name>`, e.g.,

 

% ls mod | grep rtl8192c

rtl8192cu              94208  0
rtl_usb                28672  1 rtl8192cu
rtl8192c_common        69632  1 rtl8192cu
rtlwifi               110592  3 rtl8192c_common,rtl_usb,rtl8192cu
mac80211             1298432  4 rtl_usb,rtl8192cu,rtlwifi,rtl8xxxu

You also look in journalctl for messages related to these modules.

--

George N. White III

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