Broadcom AP6255のWiFiドライバーをインストールできません
broadcom AP6255を搭載したミニPC Beelink BT3 PROでWiFiを構成しようとしています。提案されたソリューションの多くをオンラインで試しましたが、成功しませんでした。インターフェイスは表示されません。これは、ワイヤレス情報の結果です。
########## wireless info START ##########
Report from: 22 Aug 2019 14:20 CEST +0200
Booted last: 22 Aug 2019 00:00 CEST +0200
Script from: 22 Oct 2018 03:34 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 18.04.3 LTS
Release: 18.04
Codename: bionic
##### kernel ############################
Linux 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro
##### desktop ###########################
sed: can't read /home/kofm/.dmrc: No such file or directory
Could not be determined.
##### lspci #############################
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c)
Subsystem: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:0123]
Kernel driver in use: r8169
##### lsusb #############################
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 0c45:7603 Microdia
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
'pccardctl' is not installed (package "pcmciautils").
##### rfkill ############################
./wireless-info: line 192: rfkill: command not found
##### secure boot #######################
SecureBoot disabled
##### lsmod #############################
brcmsmac 565248 0
cordic 16384 1 brcmsmac
bcma 57344 1 brcmsmac
mac80211 782336 1 brcmsmac
snd_soc_sst_bytcr_rt5651 20480 0
brcmfmac 315392 0
brcmutil 16384 2 brcmfmac,brcmsmac
cfg80211 622592 3 brcmfmac,mac80211,brcmsmac
snd_soc_rt5651 90112 2 snd_soc_sst_bytcr_rt5651
snd_soc_acpi 16384 2 snd_soc_sst_bytcr_rt5651,snd_intel_sst_acpi
snd_soc_rl6231 16384 1 snd_soc_rt5651
snd_soc_core 241664 3 snd_soc_rt5651,snd_soc_sst_bytcr_rt5651,snd_soc_sst_atom_hifi2_platform
snd_pcm 98304 6 snd_soc_rt5651,snd_soc_sst_bytcr_rt5651,snd_hdmi_lpe_audio,snd_soc_sst_atom_hifi2_platform,snd_soc_core,snd_pcm_dmaengine
##### interfaces ########################
##### ifconfig ##########################
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback <MAC address> brd <MAC address>
inet 127.0.0.1/8 scope Host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope Host
valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether <MAC 'enp1s0' [IF1]> brd <MAC address>
inet 192.168.1.135/24 brd 192.168.1.255 scope global enp1s0
valid_lft forever preferred_lft forever
inet6 fe80::<IP6 'enp1s0' [IF1]>/64 scope link
valid_lft forever preferred_lft forever
##### iwconfig ##########################
lo no wireless extensions.
enp1s0 no wireless extensions.
##### route #############################
default via 192.168.1.1 dev enp1s0 proto static
192.168.1.0/24 dev enp1s0 proto kernel scope link src 192.168.1.135
##### resolv.conf #######################
[777 root '/etc/resolv.conf' -> '../run/systemd/resolve/stub-resolv.conf']
nameserver 127.0.0.53
options edns0
##### network managers ##################
Installed:
None found.
Running:
None found.
##### NetworkManager info ###############
NetworkManager is not installed (package "network-manager").
##### NetworkManager.state ##############
cat: /var/lib/NetworkManager/NetworkManager.state: No such file or directory
##### NetworkManager config #############
[[/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf]]
[device-mac-addr-change-wifi]
match-device=driver:rtl8723bs,driver:rtl8189es,driver:r8188eu,driver:8188eu,driver:eagle_sdio,driver:wl
wifi.scan-Rand-mac-address=no
wifi.cloned-mac-address=preserve
ethernet.cloned-mac-address=preserve
##### NetworkManager profiles ###########
No NetworkManager profiles found.
##### Netplan config ####################
[/etc/netplan/01-netcfg.yaml]
network:
version: 2
renderer: networkd
ethernets:
enp1s0:
addresses: [ 192.168.1.135/24 ]
gateway4: 192.168.1.1
nameservers:
addresses: [8.8.8.8,4.4.4.4]
##### iw reg get ########################
Region: Europe/Rome (based on set time zone)
global
country 00: DFS-UNSET
(2402 - 2472 @ 40), (N/A, 20), (N/A)
(2457 - 2482 @ 20), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, PASSIVE-SCAN
(5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW, PASSIVE-SCAN
(5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, PASSIVE-SCAN
(5735 - 5835 @ 80), (N/A, 20), (N/A), PASSIVE-SCAN
(57240 - 63720 @ 2160), (N/A, 0), (N/A)
##### iwlist channels ###################
lo no frequency information.
enp1s0 no frequency information.
##### iwlist scan #######################
lo Interface doesn't support scanning.
enp1s0 Interface doesn't support scanning.
##### module infos ######################
[brcmsmac]
filename: /lib/modules/4.15.0-58-generic/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
srcversion: 823188596714968C60828FF
depends: mac80211,bcma,brcmutil,cfg80211,cordic
retpoline: Y
intree: Y
name: brcmsmac
vermagic: 4.15.0-58-generic SMP mod_unload
signat: PKCS#7
signer:
sig_key:
sig_hashalgo: md4
[bcma]
filename: /lib/modules/4.15.0-58-generic/kernel/drivers/bcma/bcma.ko
license: GPL
description: Broadcom's specific AMBA driver
srcversion: F4DB57748318105D28C557A
depends:
retpoline: Y
intree: Y
name: bcma
vermagic: 4.15.0-58-generic SMP mod_unload
signat: PKCS#7
signer:
sig_key:
sig_hashalgo: md4
[mac80211]
filename: /lib/modules/4.15.0-58-generic/kernel/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
srcversion: FDB9FBFE52A6192B8CC9B9E
depends: cfg80211
retpoline: Y
intree: Y
name: mac80211
vermagic: 4.15.0-58-generic SMP mod_unload
signat: PKCS#7
signer:
sig_key:
sig_hashalgo: md4
parm: minstrel_vht_only:Use only VHT rates when VHT is supported by sta. (bool)
parm: max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
parm: max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
parm: beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
parm: probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
parm: ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)
[brcmfmac]
filename: /lib/modules/4.15.0-58-generic/kernel/drivers/net/wireless/broadcom/brcm80211/brcmfmac/brcmfmac.ko
license: Dual BSD/GPL
description: Broadcom 802.11 wireless LAN fullmac driver.
author: Broadcom Corporation
firmware: brcm/brcmfmac4373-sdio.bin
firmware: brcm/brcmfmac4356-sdio.bin
firmware: brcm/brcmfmac4354-sdio.bin
firmware: brcm/brcmfmac43455-sdio.bin
firmware: brcm/brcmfmac43430-sdio.bin
firmware: brcm/brcmfmac43430a0-sdio.bin
firmware: brcm/brcmfmac4339-sdio.bin
firmware: brcm/brcmfmac43362-sdio.bin
firmware: brcm/brcmfmac4335-sdio.bin
firmware: brcm/brcmfmac43340-sdio.bin
firmware: brcm/brcmfmac4334-sdio.bin
firmware: brcm/brcmfmac4330-sdio.bin
firmware: brcm/brcmfmac4329-sdio.bin
firmware: brcm/brcmfmac43241b5-sdio.bin
firmware: brcm/brcmfmac43241b4-sdio.bin
firmware: brcm/brcmfmac43241b0-sdio.bin
firmware: brcm/brcmfmac43143-sdio.bin
firmware: brcm/brcmfmac4373.bin
firmware: brcm/brcmfmac43569.bin
firmware: brcm/brcmfmac43242a.bin
firmware: brcm/brcmfmac43236b.bin
firmware: brcm/brcmfmac43143.bin
firmware: brcm/brcmfmac4371-pcie.bin
firmware: brcm/brcmfmac4366c-pcie.bin
firmware: brcm/brcmfmac4366b-pcie.bin
firmware: brcm/brcmfmac4365c-pcie.bin
firmware: brcm/brcmfmac4365b-pcie.bin
firmware: brcm/brcmfmac4359-pcie.bin
firmware: brcm/brcmfmac4358-pcie.bin
firmware: brcm/brcmfmac43570-pcie.bin
firmware: brcm/brcmfmac4356-pcie.bin
firmware: brcm/brcmfmac4350c2-pcie.bin
firmware: brcm/brcmfmac4350-pcie.bin
firmware: brcm/brcmfmac43602-pcie.bin
srcversion: DDCAB95D12632C778BDAC0E
depends: brcmutil,cfg80211
retpoline: Y
intree: Y
name: brcmfmac
vermagic: 4.15.0-58-generic SMP mod_unload
signat: PKCS#7
signer:
sig_key:
sig_hashalgo: md4
parm: txglomsz:Maximum tx packet chain size [SDIO] (int)
parm: debug:Level of debug output (int)
parm: p2pon:Enable legacy p2p management functionality (int)
parm: feature_disable:Disable features (int)
parm: alternative_fw_path:Alternative firmware path (string)
parm: fcmode:Mode of firmware signalled flow control (int)
parm: roamoff:Do not use internal roaming engine (int)
[brcmutil]
filename: /lib/modules/4.15.0-58-generic/kernel/drivers/net/wireless/broadcom/brcm80211/brcmutil/brcmutil.ko
license: Dual BSD/GPL
description: Broadcom 802.11n wireless LAN driver utilities.
author: Broadcom Corporation
srcversion: 418AE02D2004334CCEFD1AA
depends:
retpoline: Y
intree: Y
name: brcmutil
vermagic: 4.15.0-58-generic SMP mod_unload
signat: PKCS#7
signer:
sig_key:
sig_hashalgo: md4
[cfg80211]
filename: /lib/modules/4.15.0-58-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: 34711E0450EF391760E5E7A
depends:
retpoline: Y
intree: Y
name: cfg80211
vermagic: 4.15.0-58-generic SMP mod_unload
signat: PKCS#7
signer:
sig_key:
sig_hashalgo: md4
parm: bss_entries_limit:limit to number of scan BSS entries (per wiphy, default 1000) (int)
parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)
##### module parameters #################
[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
minstrel_vht_only: Y
probe_wait_ms: 500
grep: /sys/module/brcmfmac/parameters/alternative_fw_path: Permission denied
grep: /sys/module/brcmfmac/parameters/debug: Permission denied
grep: /sys/module/brcmfmac/parameters/roamoff: Permission denied
[brcmfmac]
[cfg80211]
bss_entries_limit: 1000
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00
##### /etc/modules ######################
##### modprobe options ##################
[/etc/modprobe.d/AMD64-microcode-blacklist.conf]
blacklist microcode
[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci
[/etc/modprobe.d/blacklist-bcm43.conf]
blacklist b43
blacklist b43legacy
blacklist ssb
blacklist bcm43xx
blacklist brcm80211
blacklist brcmsmac
blacklist bcma
[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist AMD76x_edac
[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off
[/etc/modprobe.d/intel-microcode-blacklist.conf]
blacklist microcode
[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211
[/etc/modprobe.d/mdadm.conf]
options md_mod start_ro=1
##### rc.local ##########################
grep: /etc/rc.local: No such file or directory
##### pm-utils ##########################
##### udev rules ########################
##### dmesg #############################
[ 9.895198] Bluetooth: Generic Bluetooth SDIO driver ver 0.1
[ 9.959830] bluetooth hci0: Direct firmware load for brcm/BCM4345C0.hcd failed with error -2
[ 9.959843] Bluetooth: hci0: BCM: Patch brcm/BCM4345C0.hcd not found
[ 10.097059] brcmfmac: brcmf_fw_map_chip_to_name: using brcm/brcmfmac43455-sdio.bin for chip 0x004345(17221) rev 0x000006
[ 10.830953] bytcr_rt5651 bytcr_rt5651: quirk DMIC_MAP enabled
[ 10.830959] bytcr_rt5651 bytcr_rt5651: quirk DMIC enabled
[ 10.830962] bytcr_rt5651 bytcr_rt5651: quirk MCLK_EN enabled
[ 10.874739] bytcr_rt5651 bytcr_rt5651: snd-soc-dummy-dai <-> media-cpu-dai mapping ok
[ 10.874822] bytcr_rt5651 bytcr_rt5651: snd-soc-dummy-dai <-> deepbuffer-cpu-dai mapping ok
[ 10.874986] bytcr_rt5651 bytcr_rt5651: rt5651-aif1 <-> ssp2-port mapping ok
[ 10.899701] input: bytcr-rt5651 Headset as /devices/pci0000:00/808622A8:00/bytcr_rt5651/sound/card1/input10
[ 11.688608] r8169 0000:01:00.0 enp1s0: link down (repeated 2 times)
[ 11.688900] IPv6: ADDRCONF(NETDEV_UP): enp1s0: link is not ready
[ 13.128109] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50 (repeated 3 times)
[ 16.439948] r8169 0000:01:00.0 enp1s0: link up
[ 16.439969] IPv6: ADDRCONF(NETDEV_CHANGE): enp1s0: link becomes ready
[ 30.059028] [UFW BLOCK] IN=enp1s0 OUT= MAC=01:00:5e:00:00:01:24:f5:a2:00:89:26:08:00 SRC=192.168.1.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=3435 PROTO=2
[ 155.311982] [UFW BLOCK] IN=enp1s0 OUT= MAC=01:00:5e:00:00:01:24:f5:a2:00:89:26:08:00 SRC=192.168.1.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=3437 PROTO=2
[ 279.920593] [UFW BLOCK] IN=enp1s0 OUT= MAC=01:00:5e:00:00:01:24:f5:a2:00:89:26:08:00 SRC=192.168.1.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=3439 PROTO=2
########## wireless info END ############
dmesg | grep -i sdioの出力
[ 3.699477] mmc1: new ultra high speed SDR104 SDIO card at address 0001
[ 9.911273] Bluetooth: Generic Bluetooth SDIO driver ver 0.1
[ 10.107255] brcmfmac: brcmf_fw_map_chip_to_name: using brcm/brcmfmac43455-sdio.bin for chip 0x004345(17221) rev 0x000006
[ 13.143419] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50
[ 14.160121] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50
[ 15.164314] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50
その他の要求された出力：
$ dmesg | grep brcm
[ 9.767200] bluetooth hci0: Direct firmware load for brcm/BCM4345C0.hcd failed with error -2
[ 9.767210] Bluetooth: hci0: BCM: Patch brcm/BCM4345C0.hcd not found
[ 10.107255] brcmfmac: brcmf_fw_map_chip_to_name: using brcm/brcmfmac43455-sdio.bin for chip 0x004345(17221) rev 0x000006
[ 10.111627] usbcore: registered new interface driver brcmfmac
[ 13.143419] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50
[ 14.160121] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50
[ 15.164314] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50
Beelinkの製品サポートに連絡したところ、いくつかのドライバーが送られてきましたが、インストール方法がわかりません。
ドライバーはこのリポジトリのコピーのようです https://github.com/linux-rockchip/linux-rockchip/tree/mirror/stable-3.0/drivers/net/wireless/rkwifi/bcmdhd
誰かが私にいくつかのヒントを与えることはできますか？
あなたのデバイスはほぼ間違いなくこれです：
alias: sdio:c*v02D0d4345*
これは、dmesgに従ってブート時にロードされるドライバーbrcmfmacのエイリアスフィールドからのものです。私たちはあなたのdmesgから手掛かりを得ます：
brcmfmac: brcmf_fw_map_chip_to_name: using brcm/brcmfmac43455-sdio.bin for chip 0x004345(17221) rev 0x000006
唯一の「4345」エイリアスは、上で引用したとおりです。
質問に含まれているように、さまざまなソースから、ドライバーbcmdhdが推奨されています。ただし、ドライバーの最新バージョンをコンパイルして試すことはできません。参照したコードの最後の更新は6年前に更新されました。最近のカーネルではコンパイルされません。
最後に、通常は信頼できるWikideviレポート： https://wikidevi.com/wiki/Talk:Linux_Wi-Fi_device_entries#02d0_-_Broadcom
02d0：4345-BCM4345（古いバージョンBCM43455）-サポートされていないSDIO ID：SD\VID_02D0＆PID_4345
結論として、brcmfmacはファームウェアをロードおよびロードしますが、デバイスを駆動しません。私は同意することを後悔しています。デバイスはサポートされていません。
[〜＃〜]脚注[〜＃〜]：私がここに私の研究ノートを含めました。
ubuntu-liveデスクトップで、Ubuntu 18サーバーのインストール後にWi-Fiが問題なく有効になり、Wi-Fiが機能しませんでした。
解決策は、以下のリンクとWi-Fiを有効にするための手順にあります。
https://medium.com/home-wireless/run-headless-ubuntu-on-an-atom-z8350-pc-48df5645bba
また、ここにソリューションをクロスポストします：
ファイル/lib/firmware/brcm/brcmfmac43455-sdio.txtを作成し、システムを再起動します。 Wi-Fiインターフェイスwlan0は、netplan、systemd、または/etc/network/interfacesスタイルのいずれかで構成できるようになりました。
/lib/firmware/brcm/brcmfmac43455-sdio.txt
#AP6255_NVRAM_V1.0_29052015
NVRAMRev=$Rev: 498373 $
sromrev=11
vendid=0x14e4
devid=0x43ab
manfid=0x2d0
prodid=0x06e4
macaddr=00:90:4c:c5:12:38
nocrc=1
boardtype=0x6e4
boardrev=0x1304
xtalfreq=37400
#boardflags: 5GHz eTR switch by default
#2.4GHz eTR switch by default
#bit1 for btcoex
boardflags=0x00080201
boardflags2=0x40000000
boardflags3=0x48200100
rxgains2gelnagaina0=0
rxgains2gtrisoa0=0
rxgains2gtrelnabypa0=0
rxgains5gelnagaina0=0
rxgains5gtrisoa0=0
rxgains5gtrelnabypa0=0
rxchain=1
txchain=1
aa2g=1
aa5g=1
tssipos5g=1
tssipos2g=1
femctrl=0
AvVmid_c0=0,157,1,126,1,126,1,126,1,126
pa2ga0=-112,6296,-662
pa2ga1=-165,3699,-515
pa5ga0=-143,6016,-683,-141,6013,-678,-137,5988,-670,-136,5982,-670
pa5ga1=-161,3544,-499,-166,3543,-497,-169,3569,-497,-171,3598,-498
itrsw=1
pdoffset2g40ma0=10
pdoffset40ma0=0xaaaa
pdoffset80ma0=0xaaaa
extpagain5g=2
extpagain2g=2
tworangetssi2g=1
tworangetssi5g=1
# LTECX flags
# WCI2
ltecxmux=0
ltecxpadnum=0x0504
ltecxfnsel=0x22
ltecxgcigpio=0x32
maxp2ga0=64
ofdmlrbw202gpo=0x0033
dot11agofdmhrbw202gpo=0x1553
mcsbw202gpo=0x99355533
maxp5ga0=80,82,76,77
mcsbw205glpo=0x99755000
mcsbw205gmpo=0x9df55000
mcsbw205ghpo=0x99855000
mcsbw405glpo=0xb8555000
mcsbw405gmpo=0xed955000
mcsbw405ghpo=0xd9755000
mcsbw805glpo=0xc8555000
mcsbw805gmpo=0xe9555000
mcsbw805ghpo=0xd9555000
swctrlmap_2g=0x00040004,0x00020002,0x00040004,0x010a02,0x1ff
swctrlmap_5g=0x00100010,0x00200020,0x00100010,0x010a02,0x2f4
swctrlmapext_5g=0x00000000,0x00000000,0x00000000,0x000000,0x000
swctrlmapext_2g=0x00000000,0x00000000,0x00000000,0x000000,0x000
vcodivmode=1
deadman_to=481500000
ed_thresh2g=-54
ed_thresh5g=-54
#muxenab=0x10
sd_gpout=0
sd_gpval=0
ccode=CN
regrev=38
不足しているNVRAM定義ファイルはボードに依存します。 kernel ファームウェアには、一部のボードのこのファイルが含まれていることがわかります。他のボードをサポートするためにプルリクエストを送信する必要があります。 BCM43455はBCM4345の新しいバージョンであり、AP6255とも呼ばれます。たまたま古いバージョンがあり、brcmfmacドライバーでサポートされています。
Windows 10を実行するWintel MiniPC（AMI、T3 MRD、Atom x5-Z8350 [CherryTrail]））では、ファイルはC：\ Windows\System32\drivers\4345r6nvram.txt（file内容はサシャの答えと同じであることが判明し、Linuxにコピーできる場合は、次のようにします。
Sudo cp 4345r6nvram.txt /lib/firmware/brcm/
cd /lib/firmware/brcm/
ln -s 4345r6nvram.txt brcmfmac43455-sdio.txt
Sudo modprobe -r brcmfmac
Sudo modprobe brcmfmac