# Du wifi avec Broadcom

**URL:** <https://www.debian-fr.org/t/du-wifi-avec-broadcom/83248>\
**Category:** Trucs et Astuces\
**Created:** [Novembre 10, 2020, 2:01 UTC](https://www.debian-fr.org/t/du-wifi-avec-broadcom/83248 "2020-11-10T14:01:19Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![grandtoubab](https://www.debian-fr.org/user_avatar/www.debian-fr.org/grandtoubab/32/4505_2.png) [@grandtoubab](https://www.debian-fr.org/u/grandtoubab)\
**Post date:** [Novembre 10, 2020, 2:01 UTC](https://www.debian-fr.org/t/du-wifi-avec-broadcom/83248/1 "2020-11-10T14:01:19Z")

</div>

Un petit mémo sur le wifi avec une carte Broadcom

* * *
- Identifier une carte Broadcom 

```nohighlight
lspci -nnk | grep 14e4

```

Exemple:

```nohighlight
lspci -nnk | grep 14e4
03:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM4313 802.11bgn Wireless Network Adapter [14e4:4727] (rev 01)

```

* * *
- Différents types de drivers

| brcmsmac/brcmfmac | Open-source kernel drivers |
| b43, b43legacy and b44 | Reverse-engineered kernel drivers |
| broadcom-wl | Proprietary Broadcom STA driver | Causes kernel drivers to be blacklisted |
| brcm80211 | Open-source kernel driver |
| Various | Proprietary Windows drivers | Require [Ndiswrapper](https://mxlinux.org/wiki/applications-networking/ndiswrapper) |

* * *
- Les drivers fournis par le noyau Linux :

[https://github.com/torvalds/linux/tree/master/drivers/net/wireless/broadcom](https://github.com/torvalds/linux/tree/master/drivers/net/wireless/broadcom)

```
Détails

```

[brcm80211](https://wireless.wiki.kernel.org/en/users/drivers/brcm80211)

[b43legacy et b43](https://wireless.wiki.kernel.org/en/users/drivers/b43)

[La page du wiki](https://wiki.debian.org/bcm43xx)

On les trouve dans /usr/lib/modules/_id-de-votre-noyau_/kernel/drivers/net/wireless/broadcom/

Exemple

```nohighlight
ls /usr/lib/modules/5.9.0-2-amd64/kernel/drivers/net/wireless/broadcom/
b43 b43legacy	brcm80211

```

NB: `b44` est un driver pour Broadcom en Ethernet (filaire)

Pour fonctionner il faut le firmware que l’on trouve dans le paquet firmware-brcm80211

```nohighlight
apt list firmware-brcm80211
En train de lister... Fait
firmware-brcm80211/testing,testing,unstable,unstable,now 20200918-1 all [installé]

```

* * *
- Les drivers Broadcom

On les trouve dans les paquets

```nohighlight
apt list | grep broadcom

broadcom-sta-common/testing,testing,unstable,unstable 6.30.223.271-15 all
broadcom-sta-dkms/testing,testing,unstable,unstable 6.30.223.271-15 all
broadcom-sta-source/testing,testing,unstable,unstable 6.30.223.271-15 all

```

```
   NB: si vous voulez utiliser sta-dkms, il y aura compilation à l'installation donc il faut installer aussi le linux-header de votre noyau ainsi que le paquet dkms.

```

Plus d’infos [wl](https://wiki.debian.org/fr/wl)

* * *
- blaklistage des modules

Les modules sont incompatibles entre eux il vaut donc mieux blacklister ceux qu’on n’utilise pas.

Exemple j’utilise bcma je crée un fichier;  
`/etc/modprobe.d/broadcom.conf`  
avec le contenu

```nohighlight
# pour fonctionner avec bcma
blacklist b43
blacklist b43legacy
blacklist b44

```

* * *
- Vérification 

`lspci -nnk | grep 14e4 -A4`

Exemple

```nohighlight
lspci -nnk | grep 14e4 -A4
03:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM4313 802.11bgn Wireless Network Adapter [14e4:4727] (rev 01)
DeviceName: Broadcom 802.11n+BT combo module
Subsystem: Hewlett-Packard Company BCM4313 802.11bgn Wireless Network Adapter [103c:1483]
Kernel driver in use: bcma-pci-bridge
Kernel modules: bcma

```

```auto
root@debian:~# lsmod | grep bcma
bcma 69632 1 brcmsmac
root@debian:~# modinfo brcmsmac
filename: /lib/modules/5.9.0-2-amd64/kernel/drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcmsmac.ko
firmware: brcm/bcm43xx_hdr-0.fw
firmware: brcm/bcm43xx-0.fw
license: Dual BSD/GPL
description: Broadcom 802.11n wireless LAN driver.
author: Broadcom Corporation
alias: bcma:m04BFid0812rev18cl*
alias: bcma:m04BFid0812rev17cl*
alias: bcma:m04BFid0812rev11cl*
depends: mac80211,bcma,brcmutil,cfg80211,cordic
retpoline: Y
intree: Y
name: brcmsmac
vermagic: 5.9.0-2-amd64 SMP mod_unload modversions 
sig_id: PKCS#7
signer: Debian Secure Boot CA
sig_key: B5:5E:B3:B9
sig_hashalgo: sha256
signature: 60:2D:FF:4A:DB:B6:1E:3E:CB:A5:1D:DE:4E:E9:9B:0A:CF:A8:B9:E3:
		B9:68:B0:E0:02:20:6D:39:33:75:57:2A:65:18:FA:07:CB:CC:B4:DC:
		90:94:C5:9F:5A:40:92:10:81:B6:FB:02:70:FE:31:02:97:2E:F1:36:
		A2:32:25:38:FA:A3:44:42:11:B0:C7:15:39:7C:ED:1B:27:7D:C2:05:
		11:93:E6:17:9B:8A:C2:1B:4B:43:70:64:84:79:E4:C5:38:BF:A1:0E:
		95:75:15:B1:48:54:AF:EB:72:A8:81:77:2E:05:E5:3C:DE:D2:15:36:
		51:37:A1:09:90:9B:E0:C2:DC:04:4C:92:51:81:3F:C0:52:F8:FA:73:
		35:0D:BD:65:80:77:A7:C1:61:E8:FF:F2:0D:56:FC:6B:20:6A:A5:3A:
		7E:2D:29:EC:D8:D0:7D:62:CD:BA:AE:5F:07:00:16:BE:27:0B:E1:7A:
		9F:57:01:CB:D9:5F:EF:F9:F7:5F:B0:07:0B:CE:E1:AB:46:67:6A:6E:
		4D:E4:1C:58:48:92:63:A1:CF:2B:B8:7D:D5:31:72:01:E2:CB:83:E7:
		1F:26:01:99:41:0F:D9:8C:8A:55:ED:31:91:13:E5:A6:9C:8E:85:B2:
		FA:72:E9:52:43:7D:B8:E8:DB:C6:5D:89:F6:8B:DB:EF
root@debian:~#

```

* * *
- Voir dans le journal

```nohighlight
journalctl | grep bcm
nov. 10 10:18:41 debian kernel: bcma-pci-bridge 0000:03:00.0: bus0: Found chip with id 0x4313, rev 0x01 and package 0x08
nov. 10 10:18:41 debian kernel: bcma-pci-bridge 0000:03:00.0: bus0: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x24, class 0x0)
nov. 10 10:18:41 debian kernel: bcma-pci-bridge 0000:03:00.0: bus0: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x18, class 0x0)
nov. 10 10:18:41 debian kernel: bcma-pci-bridge 0000:03:00.0: bus0: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x11, class 0x0)
nov. 10 10:18:41 debian kernel: bcma-pci-bridge 0000:03:00.0: bus0: Bus registered
nov. 10 10:18:44 debian kernel: brcmsmac bcma0:1: mfg 4bf core 812 rev 24 class 0 irq 17
nov. 10 10:18:44 debian kernel: brcmsmac bcma0:1 wlp3s0b1: renamed from wlan0
nov. 10 10:18:56 debian NetworkManager[2781]: <info> [1604999936.5108] rfkill2: found Wi-Fi radio killswitch (at /sys/devices/pci0000:00/0000:00:05.0/0000:03:00.0/bcma0:1/ieee80211/phy0/rfkill2) (driver brcmsmac)
nov. 10 10:19:00 debian kernel: brcmsmac bcma0:1: firmware: direct-loading firmware brcm/bcm43xx-0.fw
nov. 10 10:19:00 debian kernel: brcmsmac bcma0:1: firmware: direct-loading firmware brcm/bcm43xx_hdr-0.fw
nov. 10 10:19:00 debian kernel: brcmsmac bcma0:1: brcms_ops_bss_info_changed: qos enabled: false (implement)
nov. 10 10:19:00 debian kernel: brcmsmac bcma0:1: brcms_ops_config: change power-save mode: false (implement)
nov. 10 10:19:00 debian kernel: brcmsmac bcma0:1: brcms_ops_bss_info_changed: qos enabled: false (implement)
nov. 10 10:19:00 debian kernel: brcmsmac bcma0:1: brcms_ops_config: change power-save mode: false (implement)
nov. 10 10:19:03 debian kernel: brcmsmac bcma0:1: brcms_ops_bss_info_changed: qos enabled: false (implement)
nov. 10 10:19:03 debian kernel: brcmsmac bcma0:1: brcms_ops_config: change power-save mode: false (implement)
nov. 10 10:19:03 debian kernel: brcmsmac bcma0:1: brcmsmac: brcms_ops_bss_info_changed: associated
nov. 10 10:19:03 debian kernel: brcmsmac bcma0:1: brcms_ops_bss_info_changed: qos enabled: true (implement)
nov. 10 10:19:03 debian kernel: brcmsmac bcma0:1: wl0: brcms_c_d11hdrs_mac80211: txop exceeded phylen 159/256 dur 1778/1504
nov. 10 10:19:03 debian kernel: brcmsmac bcma0:1: wl0: brcms_c_d11hdrs_mac80211: txop exceeded phylen 137/256 dur 1602/1504
nov. 10 10:19:05 debian kernel: brcmsmac bcma0:1: brcms_ops_bss_info_changed: arp filtering: 1 addresses (implement)

```

---

<div class="post-metadata">

**Author:** ![grandtoubab](https://www.debian-fr.org/user_avatar/www.debian-fr.org/grandtoubab/32/4505_2.png) [@grandtoubab](https://www.debian-fr.org/u/grandtoubab)\
**Post date:** [Novembre 10, 2020, 7:43 UTC](https://www.debian-fr.org/t/du-wifi-avec-broadcom/83248/2 "2020-11-10T19:43:15Z")

</div>

Que faut il utiliser à la place de blacklist à l’époque du #blacklivesmatter ??

> **['Blacklist' and 'whitelist' terms banned by UK cyber security agency for...](https://www.techspot.com/news/85080-uk-cyber-security-agency-stop-using-racist-blacklist.html)**
>
> The National Cyber Security Center (NCSC), a branch of the Government Communications Headquarters (GCHQ), said it was implementing the change to help "stamp out racism in cyber...

Old Joe va surement nous trouver un autre terme.