broadcom 43142 no archlinux: sem interface

Question

Parece que os drivers estão instalados para o BCM43142 no meu laptop:

lspci -k
02:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)
        Subsystem: Dell Wireless 1704 802.11n + BT 4.0
        Kernel driver in use: bcma-pci-bridge
        kernel modules: bcma

No entanto, parece não haver interface sem fio associada a este dispositivo:

ip link

não gera nenhuma informação para um dispositivo sem fio. Eu olhei para os documentos do Archlinux e ele não diz como anexar uma interface (ou seja, wlan0) ao dispositivo sem fio. Alguma idéia de como eu iria corrigir esse problema?

dmesg| grep bcma

Atualizar : estou recebendo a seguinte dmesg output

[   11.069453] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[   11.561403] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[   12.718246] r8169 0000:01:00.0 enp1s0: link up
[   12.718274] IPv6: ADDRCONF(NETDEV_CHANGE): enp1s0: link becomes ready
[   15.017434] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[   38.022260] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[   71.026835] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  114.025121] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  148.297435] ERROR @wl_dev_intvar_get : error (-1)
[  148.297440] ERROR @wl_cfg80211_get_tx_power : error (-1)
[  167.028256] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  230.049349] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  293.054357] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  356.117637] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  356.125132] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  419.109201] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  482.052441] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  545.067170] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  550.596770] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  608.087644] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  671.100683] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  671.108110] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  674.041554] ERROR @wl_dev_intvar_get : error (-1)
[  674.041564] ERROR @wl_cfg80211_get_tx_power : error (-1)
[  734.132416] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  797.080622] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  860.126435] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  923.084072] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  986.177109] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[  986.184353] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[ 1011.528205] ERROR @wl_dev_intvar_get : error (-1)
[ 1011.528216] ERROR @wl_cfg80211_get_tx_power : error (-1)
[ 1049.095516] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[ 1112.124821] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[ 1175.102042] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[ 1238.133483] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[ 1301.125476] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[ 1364.117876] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[ 1427.121597] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[ 1490.152334] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
[ 1553.171802] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)

Update2:

lspci -k

02:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)
    Subsystem: Dell Wireless 1704 802.11n + BT 4.0
    Kernel driver in use: wl
    Kernel modules: bcma, wl

sudo iwlist scan

wlp2s0    Interface doesn't support scanning : Invalid argument

ifconfig

wlp2s0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 76:24:fe:f7:5e:ce  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 17  

    

Answer 1

Instale o pacote broadcom-wl-dkms .

Você pode instalá-lo a partir do AUR usando yaourt :

yaourt -S  broadcom-wl-dkms

Descarregar módulos conflitantes.

rmmod b43
rmmod ssb
rmmod bcma

Carregue o módulo wl :

modprobe -r wl
modprobe wl